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:
Feb. 25, 1986
Filed:
Aug. 04, 1983
Applicant:
Inventors:
Edwin G Swick, Bartlett, IL (US);
Jerold M Forsberg, Washington, DC (US);
Assignee:
Illinois Tool Works Inc., Chicago, IL (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16B / ;
U.S. Cl.
CPC ...
411 11 ; 411544 ;
Abstract
A tension indicating device which includes at least one indicating arm and reference means carried by a stamped generally frustoconical spring washer. A relieved area in the bearing surface of the washer prevents work surface irregularities from producing erroneous tension indications. The arm and reference means may mechanically engage one another and the arm may be made separately and attached to the washer. Indications made by the arm are designed to be visually discernable from a distance.