Pinch seal providing fluid interconnects between fluid delivery system components

• US 6,648,458 B2
• Filed: 04/23/2002
• Issued: 11/18/2003
• Est. Priority Date: 04/23/2002
• Status: Expired due to Fees

• Current Assignee: Hewlett-Packard Development Company, L.P. (HP Inc.)
• Original Assignee: Hewlett-Packard Development Company, L.P. (HP Inc.)
• Inventors: Blythe, Gregory W., Stathem, Ralph L., Dod, Eric S.
• Primary Examiner(s): Nguyen, Lamson
• Assistant Examiner(s): FEGGINS, KRISTAL J
• Application Number:
  US10/127,885
• Publication Number:
  US 20030197765A1
• Time in Patent Office: 574 Days
• Field of Search: 347/85, 347/58, 347/47, 347/50, 347/5, 347/14, 347/54, 347/19, 347/60, 347/40, 347/20, 346/140.1, 251/367, 251/368, 251/129.16, 137/55, 137/115.2
• US Class Current: 347/85
• CPC Class Codes: B41J 2/17523 Ink connection

Abstract

A marking fluid valve for a marking fluid delivery system of a media marking device. The marking fluid valve includes a resilient body having first and second opposite ends in fluid communication with one another, with the first end having a pair of opposed lips. The pair of opposed lips define a normally closed slit extending therebetween. Compressing the first end of the resilient body along axes of the lips deforms the resilient body from a closed position, in which the lips are in contact with one another to close the slit and prevent marking fluid from passing through the slit, to an open position, in which the lips are spread at least partially apart from one another to enable marking fluid to pass through the slit.

Claims

1. A marking fluid valve for a marking fluid delivery system of a media marking device, the marking fluid valve comprising:

a resilient body having first and second opposite ends in fluid communication with one another;

a pair of opposed lips at the first end of the resilient body, the pair of opposed lips defining a normally closed slit extending therebetween, the slit defining an axis, wherein compressing the first end of the resilient body along the axis of the lips deforms the resilient body from a closed position, in which the lips are in contact with one another to close the slit and prevent marking fluid from passing through the slit, to an open position, in which the lips are spread at least partially apart from one another to enable marking fluid to pass through the slit.

2. The marking fluid valve of claim 1 wherein the resilient body defines a marking fluid outlet in which in the open position of the lips, the marking fluid passes through the resilient body from the second end through the open slit at the first end.

3. The marking fluid valve of claim 1 wherein the resilient body defines a marking fluid inlet in which in the open position of the lips, the marking fluid passes into the open slit at the first end of the resilient body and through the resilient body to the second end thereof.

4. The marking fluid valve of claim 1 wherein the resilient body is formed of an elastomer material.

5. The marking fluid valve of claim 1 wherein the second end of the resilient body defines a mounting flange by which the resilient body is mounted to a component of the marking fluid delivery system of the media marking device.

6. The marking fluid valve of claim 1 wherein the second end of the resilient body defines a circumferential groove for receiving an O-ring engageable with a component of the marking fluid delivery system of the media marking device.

7. The marking fluid valve of claim 6 wherein the first end of the cone shaped resilient body is of a first dimension, wherein the second end of the cone shaped resilient body is of a second dimension, and wherein the second dimension is greater than the first dimension.

8. The marking fluid valve of claim 1 wherein between the first and second ends the resilient body is generally cone shaped.

9. The marking fluid valve of claim 1 wherein a compressive force is applied to an exterior of the first end of the resilient body to compress the first end of the resilient body along axes of the lips to deform the resilient body from the closed position to an open position.

10. The marking fluid valve of claim 9 wherein the compressive force is a pair of opposite compressive forces applied to the exterior of the first end of the resilient body in a direction parallel to the axes of the lips to compress the first end of the resilient body along axes of the lips to deform the resilient body from the closed position to an open position.

11. A fluid valve interconnect for a fluid delivery system of a printing device, the fluid valve interconnect comprising:

a resilient body having first and second opposite ends in fluid communication with one another, an exterior surface and an interior surface;

a pair of opposed lips at the first end of the resilient body, the pair of opposed lips defining a normally closed slit extending therebetween, wherein application of a force to the exterior of the resilient body moves the lips of the resilient body from a closed state in which the lips are in contact with one another to close the slit and prevent fluid from passing through the slit, to an open state in which the lips are separated at least partially apart from one another to enable fluid to pass through the slit.

12. The fluid valve of claim 11 wherein the force applied to the exterior of the resilient body is a compressive force.

13. The fluid valve of claim 12 wherein the compressive force is applied to the lips at the first end of the resilient body.

14. The fluid valve of claim 13 wherein the compressive force is applied to the lips in a directional generally parallel to a longitudinal extent of the slit.

15. The fluid valve of claim 14 wherein the compressive force is defined by a pair of opposed compressive forces applied to the lips at opposite ends of the of the slit.

16. A fluid delivery system for a printing system, the fluid delivery system comprising:

a first component including;

a substantially rigid tubular member;

a second component engageable with the first component, the second component including;

a resilient body having a first end with a pair of opposed lips defining a normally closed slit extending therebetween, wherein engagement of the second component with the first component causes the resilient body to be received by the rigid tubular member, the tubular member applying a force to an exterior of the resilient body which deforms the lips of the resilient body from a closed state, in which the lips are in contact with one another to close the slit and prevent fluid from passing through the slit, to an open state, in which the lips are separated at least partially apart from one another to enable fluid to pass through the slit.

17. The fluid delivery system of claim 16 wherein the resilient body further includes an opposite second end in fluid communication with the first end, the second end defining a flange portion adapted for mounting the resilient body to the second component.

18. The fluid delivery system of claim 16 wherein interior wall portions of the tubular member define a lead-in region and an actuating region, the lead-in region acting to guide the resilient body into the actuating region which acts to apply the force to the exterior of the resilient body which deforms the lips of the resilient body from the closed state to the open state.

19. The fluid delivery system of claim 18 wherein the interior wall portion defining the lead-in region has a first pitch, wherein the interior wall portion defining the actuating region has a second pitch, and wherein the second pitch is greater than the first pitch.

20. The fluid delivery system of claim 18 wherein the first component further includes:

a resilient body positioned within the tubular member, the resilient body of the first component having a first end with a pair of opposed lips defining a normally closed slit extending therebetween, and an opposite second end in fluid communication with the first end, wherein engagement of the second component with the first component causes the resilient body of the second component to be received by the rigid tubular member, the tubular member applying a force to exteriors of the resilient bodies of the first and second components which deforms the lips of the resilient bodies from a closed state in which the lips are in contact with one another to close the slit and prevent fluid from passing through the slit, to an open state in which the lips are separated at least partially apart from one another to enable fluid to pass through the slits.

21. The fluid delivery system of claim 20 wherein in the closed state of the lips of the resilient body of the first component, the lips are positioned within the lead-in region of the tubular member.

22. The fluid delivery system of claim 21 wherein engagement of the second component with the first component causes the lips of the resilient bodies of the first and second components to be received by the actuating portion of the rigid tubular member which acts to apply the force to the exteriors of the resilient bodies which deforms the lips of the resilient bodies from the closed state to the open state.

23. The fluid delivery system of claim 22 wherein when the lips of the resilient body of the first component are received by the actuating portion of the rigid tubular member, the resilient body is deformed between its first and second ends.

24. The fluid delivery system of claim 22 wherein the resilient body of the first component is movably mounted to the first component so as to move from a first position wherein the lips are in the closed state, and a second position in which the lips are in the open state, and wherein engagement of the second component with the first component moves the resilient body of the first component relative to the first component from the first position to the second position.

25. The fluid delivery system of claim 24 wherein the resilient body is spring biased to be normally in the first position.

26. The fluid delivery system of claim 16 wherein the first end of the resilient body has a perimeter and a maximum dimension between opposed points on the perimeter, and wherein the tubular member defines an interior wall portion having a diameter that is less than the maximum dimension, such that insertion of the resilient body into this interior wall portion deforms the lips at the first end of the resilient body from the closed state to the open state.

27. The fluid delivery system of claim 16 wherein the second component is a fluid supply container.

28. The fluid delivery system of claim 27 wherein the first component is a printing system manifold adapted to removably receive the fluid supply container.

29. The fluid delivery system of claim 27 wherein the first component is a printhead adapted to removably receive the fluid supply container.

30. The fluid delivery system of claim 16 wherein the second component is a printing system manifold.

31. The fluid delivery system of claim 30 wherein the first component is a fluid supply container adapted to be removably received by the printing system manifold.

32. The fluid delivery system of claim 30 wherein the first component is a printhead adapted to be removably received by the printing system manifold.

33. The fluid delivery system of claim 16 wherein the first component is a fluid supply container.

34. The fluid delivery system of claim 16 wherein the second component is a printhead, and the first component is a fluid supply container adapted to be removably received by the printhead.

35. The fluid delivery system of claim 16 wherein the second component is a printhead, and the first component is a printing system manifold adapted to removably receive the printhead.