1-4. (canceled)
5. A hand held apparatus for producing a spray pattern from a pen or pen-like liquid dispensing device without the intervention of a power source other than a human operator, the apparatus comprising
a frame containing an air nozzle and a pen holder disposed with its axis inclined to the axis of the air nozzle; and
a substantially rigid connecting portion for holding the air nozzle and the pen holder at a fixed angular separation,
the nozzle having a first wider end adapted to permit the direction of air by a human operator through the nozzle, and a second narrower end through which air is directed over the nib of a pen or pen-like liquid dispensing device received in the pen holder, the send end being truncated at an angle which is substantially similar to the angle subtended by the axis of the pen holder to the axis of the nozzle providing a space into which, in use, the nib of the pen is received.
6. An apparatus as claimed in claim 5, wherein the second end is truncated at an angle of between 20 and 60 degrees to the axis of the nozzle.
7. An apparatus as claimed in claim 5, wherein the second end is truncated at an angle of between 40 and 50 degrees to the axis of the nozzle.
8. An apparatus as claimed in claim 5, wherein the second end is truncated at an angle of 45 degrees to the axis of the nozzle.
9. An apparatus as claimed in claim 5, further comprising a hand operated, flexible bulb sealably connected to the first end of the nozzle by means of which air under pressure an be directed through the nozzle.
10. An apparatus as claimed in claim 5, further comprising a mouthpiece and conduit connected to the first end of the nozzle by means of which air can be blown by the operator through the nozzle.
11. An assembly comprising the apparatus of claim 5; and
a pen or pen-like liquid dispensing device.
12. An assembly as claimed in claim 11, wherein the pen or pen-like liquid dispensing device is a felt tipped pen.
13. An apparatus as claimed in claim 11, wherein the pen or pen-like liquid dispensing device is configured to dispense an edible food colorant.
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. A power steering fluid filter comprising:
a housing defining an interior chamber having an upstream end and a downstream end;
a fluid inlet communicating with the interior chamber at its upstream end;
a fluid outlet communicating with the interior chamber at its downstream end;
a filter element disposed within the interior chamber, the filter element being movable between an operable position wherein fluid flowing through the chamber passes through the filter element and a bypass position wherein fluid flowing through the chamber bypasses the filter element;
a spring disposed in the housing yieldably biasing the filter element to its operable position;
the housing being formed by a first housing portion and a second housing portion connected together; and
a release mechanism holding the first and second housing portions together and being selectively removable to release the first and second housing from each other to permit replacement of the filter element.
2. The power steering fluid filter of claim 1 and further comprising a magnet within the housing for capturing entrained ferrous debris in fluid flowing through the filter.
3. The power steering fluid filter of claim 2 and wherein the magnet is positioned within the filter element.
4. The power steering fluid filter of claim 3 and wherein the magnet is movable within the filter element.
5. The power steering fluid filter of claim 4 and wherein the filter element comprises a ferrous rim and wherein the magnet is at least partially surrounded by the ferrous rim to hold the magnet within the filter element via magnetic attraction to the rim.
6. The power steering fluid filter of claim 5 and wherein the filter element comprises a thimble filter.
7. The power steering fluid filter of claim 1 and wherein the spring has a spring constant and wherein the spring constant is preselected to allow the filter element to move to its bypass position under the influence of fluid pressure when the filter element becomes at least partially clogged with debris.
8. The power steering fluid filter of claim 1 and wherein the first and second housing portions are telescopically connected together.
9. The power steering fluid filter of claim 8 and further comprising an O-ring disposed between the first and second housing portions and forming a seal therebetween.
10. The power steering fluid filter of claim 8 and wherein the release mechanism comprises a removable locking clip.
11. The power steering fluid filter of claim 10 and wherein the locking clip extends through the first housing portion and the second housing portion and is removable to allow the housing portions to be separated.
12. A vehicle power steering system incorporating the power steering fluid filter of claim 1.
13. The power steering system of claim 1 and wherein the housing is formed of aluminum.
14. A power steering fluid filter comprising:
a housing defining an interior chamber having an upstream end and a downstream end;
a fluid inlet communicating with the interior chamber at its upstream end;
a fluid outlet communicating with the interior chamber at its downstream end;
a thimble filter disposed within the interior chamber, the thimble filter having a rim and a mesh screen and being movable within the interior chamber between an operable position against the upstream end of the interior chamber wherein fluid flowing through the chamber passes through the mesh screen and a bypass position displaced from the upstream end of the interior chamber wherein fluid flowing through the chamber bypasses the mesh screen;
a spring disposed in the housing yieldably biasing the mesh screen to its operable position, the spring being at least partially compressed between the downstream end of the interior chamber and the rim of the thimble filter;
an annular magnet in the interior chamber and positioned such that fluid flowing through the interior chamber passes through the annular magnet;
the housing being formed by a first housing portion and a second housing portion telescopically coupled together together; and
a locking clip holding the first and second housing portions together and being selectively removable to release the first and second housing portions from each other to permit replacement of the filter element.
15. The power steering fluid filter as claimed in claim 14 and wherein the locking clip is a generally U-shaped spring clip having first and second legs that extend through aligned openings in the first and second housing portions to hold the housing portions together, and a bight portion that can be grasped to remove the locking clip.