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. 13, 1982
Filed:
Jun. 20, 1980
Applicant:
Inventors:
Marvin Gordon, East Windsor, NJ (US);
Joseph Lichtenstein, Colonia, NJ (US);
Assignee:
Whitman Medical Corp., Clark, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61M / ; F16L / ;
U.S. Cl.
CPC ...
1282 / ; 1283 / ; 128274 ; 2511496 ;
Abstract
A safety valve for catheterization procedures is characterized by a piston having an internal flow path, a portion of the piston being surrounded by an elastomeric member which surrounds a portion of the piston and biases it to a closed position. The elastomeric member also severely restricts fluid flow around the piston to eliminate any flow path other than the internal piston flow path.