1. An electrical straddle box comprising, a pair of rectangular electrical boxes each having a width to fit between adjacent construction studs, and said electrical boxes are separated from each other by a center construction stud; a U-shaped saddle whose legs are adjacent inner ends of each of said pair of electrical boxes and including a web member of a width to fit over said center construction stud; means for attachment of said U-shaped saddle web to an outer edge across the width of said center construction stud to position each of said pair of electrical boxes fitted in an area between said center construction stud and an adjacent construction stud for providing a flush mounting of said straddle box across said adjacent and center construction studs; and a cover arranged to fit over, and be secured across, the pair of rectangular electrical boxes and saddle, and said cover is hinge connected to an outer top edge of the outer side of one of said electrical boxes to swing outwardly, exposing the interiors of both of said electrical boxes.
2. (canceled)
3. (canceled)
4. The electrical straddle box as recited in claim 1, further including a straight bar having dog leg bends in its opposite ends, said straight bar having a length and width to fit over and extend the length of the saddle web, to be spaced a distance above said saddle web so as to provide a passage of cables and wires across said saddle web, beneath said straight bar.
5. The electrical straddle box as recited in claim 1, further including a pair of thin rectangular removable back panels, with said back panels having dimensions to, and are for fitting in, each of the pair of electrical boxes and for mounting onto the back of each said pair of electrical boxes, and each said back panel has a plurality of spaced holes formed therein.
6. The electrical straddle box as recited in claim 1, wherein the top, bottom and outer sides of each of the electrical boxes includes a plurality of spaced knock outs that are removable to form holes therethrough.
7. The electrical straddle box as recited in claim 6, wherein some of the knock outs have greater or less diameters than one another and can have other than round shapes.
8. An electrical straddle box comprising, a pair of rectangular electrical boxes each having a width to fit between adjacent construction studs, and said electrical boxes are separated from each other by a center construction stud; a U-shaped saddle whose legs are adjacent inner ends of each of said pair of electrical boxes and including a web member of a width to fit over said center construction stud; means for attachment of said U-shaped saddle web to an outer edge across the width of said center construction stud to position each of said pair of electrical boxes fitted in an area between said center construction stud and an adjacent construction stud for providing a flush mounting of said straddle box across said adjacent and center construction studs; a cover arranged to fit over, and be secured across, the pair of rectangular electrical boxes and saddle; and a straight bar having dog led bends in its opposite ends, with said straight bar having a length and width to fit over and extend the length of said saddle web, to be spaced a distance above said saddle web so as to provide a passage of cables and wires across said saddle web, beneath said straight bar
9. The electrical straddle box as recited in claim 8, further including a pair of thin rectangular removable back panels, with said back panels having dimensions to, and are for fitting in, each of the pair of electrical boxes and for mounting onto the back of each said pair of electrical boxes, and each said back panel has a plurality of spaced holes formed therein.
10. The electrical straddle box as recited in claim 9, wherein the top, bottom and outer sides of each of the electrical boxes includes a plurality of spaced knock outs that are removable to form holes therethrough.
11. The electrical straddle box as recited in claim 10, wherein some of the knock outs have greater or less diameters than one another and can have other than round shapes.
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 ink jet print head substrate comprising:
an ejection energy generation means to generate an ink ejection energy;
a fuse element capable of being blown by passing an electric current therethrough; and
a first and second layer overlying and underlying the fuse elements;
wherein at least one of the first and second layer is formed of a first low-melting point material having a lower melting point than that of the fuse elements, the first low-melting point material forming a cavity therein by heat produced when the fuse element is blown.
2. An ink jet print head substrate according to claim 1, wherein the first low-melting point material is an SiO film containing phosphorus.
3. An ink jet print head substrate according to claim 1, wherein at least one of the first and second layer formed of the first low-melting point material is formed by a plasma CVD method.
4. An ink jet print head substrate according to claim 1, wherein a third layer is formed over at least one of the first and second layer formed of the first low-melting point material;
wherein the third layer is made of a second low-melting point material having a higher melting point than that of the first low-melting point material and forming a cavity therein by heat produced when the fuse element is blown.
5. An ink jet print head substrate according to claim 4, wherein the second low-melting point material is an SiO film not containing phosphorus.
6. An ink jet print head substrate according to claim 4, wherein the third layer is formed by a plasma CVD method.
7. An ink jet print head substrate according to claim 4, wherein an organic resin layer is formed over the third layer, the organic resin layer being melted by a melted mass produced when the fuse elements is blown.
8. An ink jet print head substrate according to claim 7, wherein the organic resin layer forms an ink path.
9. An ink jet print head substrate according to claim 1, wherein a plurality of the fuse elements are formed to construct a fuse array.
10. An ink jet print head substrate according to claim 9, further including:
a fuse logic circuit connected to the plurality of fuse elements making up the fuse array;
wherein the fuse logic circuit can perform a control of selectively blowing the plurality of fuse elements to store data and a control of reading the data from the plurality of fuse elements.
11. An ink jet print head substrate according to claim 1, wherein the ejection energy generation means includes heating resistor to generate a thermal energy for ejecting ink;
wherein a cavitation resistance film is formed over the heating resistor.
12. An ink jet print head substrate according to claim 11, wherein a protective film is formed between the heating resistor and the cavitation resistance film.
13. An ink jet print head substrate according to claim 11, wherein the fuse element is formed of the same material as the cavitation resistance film.
14. An ink jet print head substrate according to claim 11, wherein at least a blow portion of the fuse element is situated lower than the cavitation resistance film over the heating resistor.
15. An ink jet print head substrate according to claim 11, wherein an organic layer to form an ink path is situated above the fuse element.
16. An ink jet print head including the ink jet print head substrate claimed in claim 1,
the print head being capable of ejecting ink by an operation of the ejection energy generation means and of storing data by the fuse element being blown.
17. An ink jet printing apparatus for forming an image on a print medium by using an ink jet print head capable of ejecting ink, the printing apparatus comprising:
a mounting portion capable of mounting the ink jet print head claimed in claim 16;
a means for controlling the ejection energy generation means in the ink jet print head; and
a means for reading data stored in the fuse element in the ink jet print head.
18. A method of manufacturing an ink jet print head substrate, wherein the ink jet print head substrate comprises:
a heating resistor to generate a thermal energy for ejecting ink;
a fuse element capable of being blown by passing an electric current therethrough; and
a first and second layer overlying and underlying the fuse elements;
wherein at least one of the first and second layer is formed of a first low-melting point material having a lower melting point than that of the fuse element, the first low-melting point material forming a cavity therein by heat produced when the fuse element is blown;
wherein a cavitation resistance film is formed over the heating resistor;
wherein, when the cavitation resistance film is formed, the fuse element is formed of the same material as the cavitation resistance film.