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.

Date of Patent:
Mar. 23, 1982

Filed:

May. 02, 1980
Applicant:
Inventor:

Ewald H Beermann, Solingen, DE;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B26B / ;
U.S. Cl.
CPC ...
30162 ; 30320 ; 30335 ;
Abstract

A razor knife has an elongated housing formed of a front housing part and a rear housing part and having a longitudinally extending guide. The rear housing part is backwardly separable from the front housing part and carries a blade holder which has a seat for a razor blade and an actuator button exposed at a slot formed in the front housing part. This holder is displaceable by sliding of the actuator button from a back position with the blade wholly enclosed by the housing into a front position with a portion of the blade projecting forwardly from the housing. A tension spring inside the insert or back housing part continuously urges the holder into the back position. Interengaging formations on the operating button and the housing, however, allow the blade to be held in the outer position so long as a slight inward force is exerted on the slidable actuator button.


Find Patent Forward Citations

Beermann, Ewald. (1982). Razor knife with self-retracting blade (U.S. Patent No. 4320576). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4320576

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Loading…