Ink pump

Details Ink pump Ink pump

B - Operations, Transporting

41

L

101/101

B41L 27/00 (2006.01) B41F 31/08 (2006.01) G07B 17/00 (2006.01)

Patent

CA 2002618

ABSTRACT OF THE DISCLOSURE An ink pump for a high speed mailing machine is dis- closed. The ink pump pumps ink from an ink reservoir to an ink pad of an ink pad device. The ink pump comprises a deformable chamber and valving which cooperate to pump ink upon compression of the chamber and release of the compression. The pump com- prises an input and an output, and the valving comprises a one way valve, e.g., a duck bill valve, disposed at the pump input which closes upon compression of the chamber and opens upon release of the compression, and a one way valve, e.g., a duck bill valve, disposed at the pump output which opens upon compres- sion of the chamber and closes upon release of the compression. Duck bill valves enable the pump to be disposed in any attitude including horizontal, and duck bill valves may be disposed entirely within the deformable chamber. In a specific embodiment the deformable chamber comprises a sleeve of elastic material. According to an embodiment of the invention, an ink pump and an ink pad device including an ink pad are attached so as to form a unit which preferably is disposable. According to another em- bodiment, an ink pump and an ink reservoir are attached as a unit. According to another embodiment of the invention, an ink pump, an ink pad device including an ink pad, and an ink reser- voir are attached so as to form a unit which preferably is dis- posable.

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