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:
Jul. 28, 1987
Filed:
Jan. 28, 1986
Applicant:
Inventors:
V Walter Hafner, Whittier, CA (US);
Ron T Hahn, Fullerton, CA (US);
Keith D Marshall, Whittier, CA (US);
Assignee:
Acorn Engineering Company, City of Industry, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01B / ; F16J / ;
U.S. Cl.
CPC ...
92 9 / ; 92169 ; 4407 ; 4408 ;
Abstract
A push button assembly for moving a volume of fluid out of and into a port. The assembly has a housing containing a rubber-domed diaphragm. The domed diaphragm is designed so that it is deformable but readily returns to its original shape. The pressing of the push button depresses the diaphragm, thereby forcing air or other fluid out of the exit port. When the button is released, the diaphragm returns to its original shape pulling fluid back through the port.