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:
May. 14, 1996
Filed:
Apr. 25, 1994
Applicant:
Inventor:
Edward Tygard, McMurray, PA (US);
Assignee:
Tygard Machine & Manufacturing Co., Washington, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B66F / ;
U.S. Cl.
CPC ...
414607 ; 414621 ; 414623 ; 414626 ; 414659 ; 294 8161 ; 294 871 ;
Abstract
A clamping apparatus for lifting objects includes a frame and first and second opposing clamping arms pivotably supported by the frame about first and second parallel axes. Each clamping arm has a contact portion. A drive member is connected to the first and second clamping arms to simultaneously pivot the first and second clamping arms about the first and second axes. The height of the contact portions when spaced apart by a first separation is the same as when spaced apart by a second separation. As a result, the clamping apparatus can securely grasp both square and elongated rectangular objects.