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:
Mar. 21, 1995
Filed:
Apr. 06, 1992
David S Goldman, Hopkinton, MA (US);
Craig L Krigsman, Boston, MA (US);
Other;
Abstract
A lock is provided having a thick U-shaped shackle, a transverse housing for receivably locking extending ends of the shackle, a pair of longitudinal members which lockably intersect the shackle ends and which are actuated by a lock protected within the intermediate portion of the housing. In an exemplary embodiment of the lock, the shackle and housing are constructed of substantially thick tubular metal, and the shackle ends may be conformed to openings in the housing. The longitudinal members may be extended post members which intersect inserted shackle ends or may be forked members which slidably engage flat portions on inserted shackle ends. The locking mechanism may be activated through a rack-and-pinion, cam-and-pin, or hook-and-pin assembly, and may further comprise shackle ends having flat sections conformed to the housing openings to prevent rotation. In another exemplary embodiment of the lock, the lock incorporates a second U-shaped shackle on the opposite side of the housing from the first shackle. The compact and integral design affords improved resistance to tampering such as by shattering or cutting/twisting methods.