The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 16, 1993
Filed:
Sep. 12, 1990
Charles F Murphy, III, Fairfield, CT (US);
Patrick Murphy, Stamford, CT (US);
Pitney Bowes Inc., Stamford, CT (US);
Abstract
The ink pad replenishing system includes an ink tray containing an ink pad, inlet means for receiving ink and outlet means for providing drainage of excess ink from the ink tray, and an ink reservoir. A first pump is comprised of a deformable and resilient tubular member, and first and second end caps fixably mounted to respective ends of the tubular member, and valve means mounted in the first pump for providing uni-directional flow in a first direction through the first pump upon actuation of the first pump. A second pump is comprised of a deformable and resilient tubular member, and first and second end caps fixably mounted to respective ends of the tubular member, and valve means mounted in the second pump or providing uni-directional flow in a second direction through the second pump upon actuation of the second pump. A first conduit is provided for providing flow communication between the reservoir, the first pump and the inlet means of said ink tray, and between the reservoir, the second pump and the outlet means of the ink tray. A reciprocally driven linkage is provided for periodically activating the first and second pumps.