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:
Dec. 18, 1990
Filed:
May. 18, 1988
Alfred V Schuckmann, Kevelaer, DE;
Colgate-Palmolive Company, New York, NY (US);
Abstract
The invention concerns a dispenser for the metered delivery of materials in paste form, with a tubular housing in which a follower piston in incrementally displaceable in the direction of discharge, and with an actuating key, positioned adjacent to a discharge nozzle, for the displacement of the surface of a pump diaphragm, fastened at its edges, from its rest position in the direction of the follower piston. The follower piston has a closable air vent. The pump diaphragm has a series of radially extending formations which materially increase its recovery capacity following a pumping stroke.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile