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:
Nov. 16, 1976
Filed:
Jun. 16, 1975
Applicant:
Inventor:
Oscar Jacques van Leer, Amstelveen, NL;
Assignee:
Koninklijke Emballage Industrie Van Leer B.V., Amstetveen, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61M / ;
U.S. Cl.
CPC ...
128216 ; 222 92 ;
Abstract
Hypodermic syringe consisting of a compressible reservoir of a material at least partly consisting of a thermoplastic synthetic material, which reservoir is coupled to a hypodermic needle and of which one wall is movable towards an opposite wall. The walls are movable with respect to each other and have a common hinge-point in the manner of a pointed bellows. The walls are coupled with each other and with a third collapsible wall via folding straight lines acting as hinges. The material of the reservoir is treated such at least on the spot of these folding lines, that it tries to move the mutually movable walls toward each other.