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:
Dec. 23, 1980
Filed:
Sep. 06, 1978
Applicant:
Inventor:
Richard Gilbert, Sheffield, GB;
Assignee:
Stanley Tools Limited, , GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B26B / ;
U.S. Cl.
CPC ...
30162 ; 30320 ; 30331 ; 30335 ;
Abstract
A retractable blade knife 10 comprises an elongate handle 11 which is in two halves 14, 15 clamping therebetween a replaceable blade 12 which can be extended and retracted by means of a cursor 18 and which has 'break-lines' 32 for breaking off successive end portions 33. To clamp the blade 12 firmly in use, a screw 27 at the rear end of the handle can be turned to produce relative longitudinal sliding between the two handle halves 14, 15, whereupon an inclined 'wedging' surface 17 at the front end of the handle 11 clamps the two halves 14 and 15 together with the blade 12 between them.