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. 26, 1977
Filed:
Sep. 29, 1975
Applicant:
Inventors:
Merrill Andrew Christianson, Puyallup, WA (US);
Horace Earl Hill, Renton, WA (US);
Assignee:
The Boeing Company, Seattle, WA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B23B / ; B23B / ;
U.S. Cl.
CPC ...
408202 ; 279 / ; 279 / ; 403104 ;
Abstract
A housing to fit over a drill contains a pair of sleeves with facing inclined surfaces that approach each other to force a washer located between the surfaces into an inclined position to lock onto the drill. A spring located on each side of the washer extends to the adjacent sleeve.