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:
Apr. 01, 1980
Filed:
May. 03, 1978
Applicant:
Inventors:
Wendell R Parker, Moraga, CA (US);
Mark H Silverman, Redwood City, CA (US);
Willis L Warner, San Rafael, CA (US);
Assignee:
Cutter Laboratories, Inc., Berkeley, CA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61J / ;
U.S. Cl.
CPC ...
128272 ; 1282 / ; 137 / ;
Abstract
An improvement in a fluid flow valve is disclosed. The valve comprises a combination of flexible tubing joined to a tubular member having a membrane closing off the passageway in the tubular member. A pointed spike having at least three radially projecting ribs extending longitudinally is located within the tubing adjacent the membrane and is movable by external manipulation of the tubing whereby the spike ruptures the membrane and creates a passageway permitting fluid to flow freely through the tubular member and adjoining tubing.