Author: claimsbot

1. A closure for a vessel, comprising:
a hub having an access opening to the vessel, the hub having a circumferential stop face and a plurality of recesses each extending radially outward from an adjacent inner surface of the hub;
a door for positioning between the stop surface and the vessel;
a latch member for bringing the door to sealing engagement with the stop member; and
a plurality of lugs each extending radially outward from an adjacent exterior surface of the door, such that a respective lug engages the hub about a respective recess to seal the door to the hub, and the door may be moved to pass through the plurality of recesses and out of the hub.
2. A closure as defined in claim 1, further comprising:
a pivot mechanism for pivoting the door with respect to the hub.
3. A closure as defined in claim 1, further comprising:
an annular seal for sealing between the door and the hub, the annular seal being selected from one of a metal seal, an elastomeric seal, and a polymeric seal.
4. A closure as defined in claim 1, wherein the door includes a portion having an elliptical cross-section.
5. A closure as defined in claim 1, wherein the door is suspended closely adjacent its center of gravity.
6. A closure as defined in claim 1, wherein an exterior surface of the door without the plurality of lugs has a generally circular configuration.
7. A closure as defined in claim 1, wherein the circumferential stop face is fixedly positioned to the hub.
8. A closure as defined in claim 1, wherein each of the plurality of lugs is fixedly positioned on the door.
9. A closure for a vessel, comprising:
a hub having an access opening to the vessel, the hub having a circumferential stop face and one or more of recesses each extending radially outward from an adjacent inner surface of the hub, the circumferential stop face being fixedly positioned on the hub;
a door for positioning between the stop surface and the vessel;
a latch member for bringing the door to sealing engagement with the stop member; and
one or more lugs each extending radially outward from an adjacent exterior surface of the door, each of the one or more lugs being fixedly positioned on the door, such that a respective lug engages the hub about a respective recess to seal the door to the hub, and the door may be moved to pass through the one or more recesses and out of the hub.
10. A closure as defined in claim 9, further comprising:
a pivot mechanism for pivoting the door with respect to the hub.
11. A closure as defined in claim 9, further comprising:
an annular seal for sealing between the door and the hub, the annular seal being selected from one of a metal seal, an elastomeric seal, and a polymeric seal.
12. A closure as defined in claim 9, wherein an exterior surface of the door without the one or more lugs has a generally circular configuration.
13. A closure as defined in claim 9, wherein the one or more recesses and one or more lugs includes at least two circumferentially opposite recesses and two circumferentially opposite lugs.
14. A method of forming a closure for a vessel, comprising:
providing a hub having an access opening to the vessel, the hub having a circumferential stop face and one or more recesses each extending radially outward from an adjacent inner surface of the hub;
positioning a door between the stop surface and the vessel;
forming one or more of lugs each extending radially outward from an adjacent exterior surface of the door, such that a respective lug engages the hub about a respective recess to seal the door to the hub;
moving the door into sealing engagement with the stop member; and
pivoting the door to pass the door and the one or more lugs through the one or more recesses and out of the hub.
15. A method as defined in claim 14, further comprising:
providing an annular seal between the door and the hub, the annular seal being selected from one of a metal seal, an elastomeric seal, and a polymeric seal.
16. A method as defined in claim 14, further comprising:
suspending the door while within the hub closely adjacent its center of gravity.
17. A method as defined in claim 14, wherein an exterior surface of the door without the plurality of lugs has a generally circular configuration.
18. A method as defined in claim 14, wherein the circumferential stop face is fixedly positioned to the hub.
19. A method as defined in claim 14, wherein each of the one or more of lugs is fixedly positioned on the door.
20. A method as defined in claim 14, wherein the one or more recesses and the one or more lugs includes at least two circumferentially opposite recesses and at least two circumferentially opposite lugs.

The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.

1. An image-processing apparatus comprising:
a memory that stores a red color range occurring within a color space;
an acquiring unit that acquires image data representing an image containing text; and
a generating unit that generates, based on the image data acquired by the acquiring unit, image data in which a pattern image is disposed in a region containing text whose color is within the red color range, the pattern image having a first transmittance in a case that a size of the region is greater than or equal to a threshold, the pattern image having a second transmittance that is smaller than the first transmittance in a case that the size of the region is smaller than the threshold.
2. An image-processing apparatus comprising:
a memory that stores a red color range occurring within a color space;
an acquiring unit that acquires image data representing an image containing text; and
a generating unit that generates, based on the image data acquired by the acquiring unit, image data in which a pattern image is disposed in a region containing text whose color is within the red color range, expands an area of the region in a case that a percentage of the area occupied by the red text is greater than or equal to a threshold.
3. An image-processing apparatus comprising:
a memory that stores a red color range occurring within a color space;
an acquiring unit that acquires image data representing an image containing text; and
a generating unit that generates, based on the image data acquired by the acquiring unit, image data in which a pattern image is disposed in a region containing text whose color is within the red color range, expands an area of the region whose distance from another region exceeds a threshold in a case that a plurality of regions containing red text is present.
4. An image-processing apparatus comprising:
a memory that stores a red color range occurring within a color space;
an acquiring unit that acquires image data representing an image containing text; and
a generating unit that generates, based on the image data acquired by the acquiring unit, image data in which a pattern image is disposed in a region containing text whose color is within the red color range,
if a size of the region is greater than or equal to a first threshold, the pattern image occupies a first percentage of an area of the region, and in addition, expands the area in a case that a percentage of the area occupied by the red text is greater than or equal to a second threshold,
if the size of the region is smaller than the first threshold, the pattern image occupies a second percentage, which is greater than the first percentage, of the area, and in addition, expands the area in a case that a plurality of regions containing red text is present and a distance from another region exceeds a third threshold.
5. An image-forming apparatus comprising:
a memory that stores a red color range occurring within a color space;
an acquiring unit that acquires image data representing an image containing text;
a generating unit that generates, based on the image data acquired by the acquiring unit, image data in which a pattern image is disposed in a region containing text whose color is within the red color range, the pattern image having a first transmittance in a case that a size of the region is greater than or equal to a threshold, the pattern image having a second transmittance that is smaller than the first transmittance in a case that the size of the region is smaller than the threshold; and
an image forming unit that forms, on a recording medium, an image based on the image data generated by the generating unit.
6. An image-forming apparatus comprising:
a memory that stores a red color range occurring within a color space;
an acquiring unit that acquires image data representing an image containing text;
a generating unit that generates, based on the image data acquired by the acquiring unit, image data in which a pattern image is disposed in a region containing text whose color is within the red color range, expands an area of the region in a case that a percentage of the area occupied by the red text is greater than or equal to a threshold; and
an image forming unit that forms, on a recording medium, an image based on the image data generated by the generating unit.
7. An image-forming apparatus comprising:
a memory that stores a red color range occurring within a color space;
an acquiring unit that acquires image data representing an image containing text;
a generating unit that generates, based on the image data acquired by the acquiring unit, image data in which a pattern image is disposed in a region containing text whose color is within the red color range, expands an area of the region whose distance from another region exceeds a threshold in a case that a plurality of regions containing red text is present; and
an image forming unit that forms, on a recording medium, an image based on the image data generated by the generating unit.
8. An image-forming apparatus comprising:
a memory that stores a red color range occurring within a color space;
an acquiring unit that acquires image data representing an image containing text;
a generating unit that generates, based on the image data acquired by the acquiring unit, image data in which a pattern image is disposed in a region containing text whose color is within the red color range,
if a size of the region is greater than or equal to a first threshold, the pattern image occupies a first percentage of an area of the region, and in addition, expands the area in a case that a percentage of the area occupied by the red text is greater than or equal to a second threshold,
if the size of the region is smaller than the first threshold, the pattern image occupies a second percentage, which is greater than the first percentage, of the area, and in addition, expands the area in a case that a plurality of regions containing red text is present and a distance from another region exceeds a third threshold; and
an image forming unit that forms, on a recording medium, an image based on the image data generated by the generating unit.
9. An image-processing method comprising:
storing a red color range occurring within a color space;
acquiring image data representing an image containing text; and
generating, based on the image data acquired, image data in which a pattern image is disposed in a region containing text whose color is within the red color range, the pattern image having a first transmittance in a case that a size of the region is greater than or equal to a threshold, the pattern image having a second transmittance that is smaller than the first transmittance in a case that the size of the region is smaller than the threshold.
10. An image-processing method comprising:
storing a red color range occurring within a color space;
acquiring image data representing an image containing text; and
generating, based on the image data acquired, image data in which a pattern image is disposed in a region containing text whose color is within the red color range, expands an area of the region in a case that a percentage of the area occupied by the red text is greater than or equal to a threshold.
11. An image-processing method comprising:
storing a red color range occurring within a color space;
acquiring image data representing an image containing text; and
generating, based on the image data acquired, image data in which a pattern image is disposed in a region containing text whose color is within the red color range, expands an area of the region whose distance from another region exceeds a threshold in a case that a plurality of regions containing red text is present.

What we claim as our invention is:

1. A support for the manufacture of the vinyl acetate catalyst comprising a mixture of substantially inert microspheroidal particles having a pore volume of between 0.2 to 0.7 ccg, a surface area of between 50 to 200 m2g and at least 50% of said particles are less than 105 microns.
2. The support of claim 1 wherein the pore volume is between 0.3 and 0.65 ccg, the surface area is between 50 to 150 m2g and at least 75% of the particles are below 105 microns.
3. The support of claim 2 wherein the substantially inert microspheroidal particles are selected from the group consisting of silica, zirconia, alumina, titania and mixtures thereof.
4. The support of claim 3 wherein the substantially inert microspheroidal particles are selected to be silica.
5. A process for the manufacture of a substantially inert support for a fluid bed vinyl acetate catalyst comprising mixing less than 100% to 20 wt % of an aqueous sol comprising substantially inert microspheroidal particles with greater than 0% to 80 wt % of solid substantially inert particulate material to form an aqueous mixture, spray drying said aqueous mixture, and calcining said particles to form said substantially inert support.
6. The process of claim 5 wherein said substantially inert particles in the aqueous sol are selected from the group consisting of silica, alumina, titania and zirconia.
7. The support made by the process of claim 5.
8. The support made by the process of claim 6 wherein the substantially inert particles are silica.
9. A process of manufacturing a fluid bed vinyl acetate catalyst characterized by the following formula comprising Pd-M-A where M equals barium, cadmium, gold, lanthanum, niobium, cerium, zinc, lead, calcium, strontium, antimony, or mixtures thereof; and A equals at least one alkali metal comprising impregnating the support of claim 1 with a solution comprising a metal salt of palladium, M, and at least one alkali metal and drying the impregnated support.
10. The process of claim 9 comprising impregnating the support of claim 2.
11. The process of claim 9 comprising impregnating the support of claim 3.
12. The process of claim 9 comprising impregnating the support of claim 4.
13. The process of claim 9 comprising impregnating the support of claim 7.
14. The process of claim 9 comprising impregnating the support of claim 8.
15. The process of claim 9 wherein the support is impregnated with an aqueous solution substantially free of organic solvent comprising a metal salt of Pd, M and at least one alkali metal.
16. The process of claim 10 wherein the support is impregnated with an aqueous solution substantially free of organic solvent comprising a metal salt of Pd, M and at least one alkali metal.
17. The process of claim 11 wherein the support is impregnated with an aqueous solution substantially free of organic solvent comprising a metal salt of Pd, M and at least one alkali metal.
18. The process of claim 12 wherein the support is impregnated with an aqueous solution substantially free of organic solvent comprising a metal salt of Pd, M and at least one alkali metal.
19. The process of claim 13 wherein the support is impregnated with an aqueous solution substantially free of organic solvent comprising a metal salt of Pd, M and at least one alkali metal.
20. The process of claim 14 wherein the support is impregnated with an aqueous solution substantially free of organic solvent comprising a metal salt of Pd, M and at least one alkali metal.
21. A process for the manufacture of v inyl acetate comprising contacting the catalyst produced by the process of claim 9 in a fluid bed reactor with a gaseous mixture of acetic acid, ethylene, and an oxygen containing gas to produce vinyl acetate and recovering the vinyl acetate from the fluid bed reactor.
22. The process of claim 21 performed at a reaction temperature of 100 to 250 C.
23. The process of claim 22 wherein the reaction temperature is between about 135 to 190 C.
24. The process of claim 21 performed at a reaction pressure of 50 to 200 psig.
25. The process of claim 24 wherein the reaction pressure is between about 75 to 150 psig.
26. A process for the manufacture of vinyl acetate comprising contacting the catalyst produced by the process of claim 15 in a fluid bed reactor with a gaseous mixture of acetic acid, ethylene, and an oxygen containing gas to produce vinyl acetate and recovering the vinyl acetate from the fluid bed reactor.
27. The process of claim 26 performed at a reaction temperature of 100 to 250 C.
28. The process of claim 27 wherein the reaction temperature is between about 135 to 190 C.
29. The process of claim 26 performed at a reaction pressure of 50 to 200 psig.
30. The process of claim 29 wherein the reaction pressure is between about 75 to 150 psig.

The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.

1. An apparatus for supporting and moving a toilet between a position where it is accessible for use to a person of restricted mobility and a remote storage position when not in use, said apparatus comprising
a first platform which rests on a floor and is operable to support a chair above the floor, said first platform having a guide extending laterally along an edge,
a second platform having a member that cooperates with said guide, said second platform being supported so that it is capable of limited, lateral, translational movement relative to said first platform, and
an unplumbed toilet operable to collect waste material for later removal, said toilet being mounted and supported on said second platform,
whereby a person of restricted mobility can occupy a chair supported on said first platform so that it is facing said second platform, and can slide said second platform, laterally, relative to said first platform so that the toilet on said second platform is moved between a use position in front of the chair in which it can be mounted and used by the person, and a storage position where it is laterally removed from being in front of the chair and the person, without the person having to walk.
2. The apparatus as claimed in claim 1 wherein said guide is effective to prevent rotation between said first and second platforms.
3. The apparatus as claimed in claim 2 which additionally includes rollers on the underside of said second platform to facilitate its movement.
4. The apparatus claimed in claim 1 which further comprises a subfloor positioned between said second platform and the floor of a room in which the system is being used.
5. The apparatus claimed in claim 1 which further comprises at least one stop operable to prevent relative movement between said first and second platforms beyond the use position, in one lateral direction.
6. The apparatus claimed in claim 1 which further comprises a hand rail connected to said second platform and wherein said hand rail comprises a handle that is supported above said toilet.
7. The apparatus claimed in claim 1 wherein said toilet comprises a seat and an unattached lid with a positioning ring which is operable to engage said seat and locate said lid relative to said seat.
8. The apparatus claimed in claim 1 wherein said platforms each have upper surfaces which are supported at the same height so that they are even.
9. The apparatus claimed in claim 1 which further comprises at least one stop operable to prevent relative movement between said first and second platforms beyond the storage position, in one lateral direction.
10. The apparatus claimed in claim 5 which further comprises a second stop operable to prevent relative movement between said first and second platforms beyond the storage position, in one lateral direction.
11. The apparatus claimed in claim 1 which further comprises a chair supported on said first platform.
12. The apparatus claimed in claim 11 wherein said chair is secured to and supported on said first platform, facing said second platform.
13. The apparatus claimed in claim 11 wherein said platforms each have upper surfaces which are supported at the same height so that they are even.
14. The apparatus claimed in claim 11 wherein said toilet comprises a seat and an unattached lid with a positioning ring which is operable to engage said seat and locate said lid relative to said seat.
15. The apparatus claimed in claim 14 wherein said chair comprises a seat with an upper surface and wherein said toilet seat is lower than said upper surface of said seat of said chair.
16. The apparatus claimed in claim 14 wherein said platforms each have upper surfaces which are supported at the same height so that they are even.
17. The apparatus claimed in claim 15 wherein said platforms each have upper surfaces which are supported at the same height so that they are even.