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:
Nov. 01, 1977
Filed:
Oct. 08, 1976
Nicholas F Stancati, Basking Ridge, NJ (US);
Peter Garner, Chatham, NJ (US);
Acta Limited, Manville, NJ (US);
Abstract
A threaded anchor for embedding in a cementious material comprising a unitary member of generally cylindrical configuration, which is interiorally threaded and open at one end. The other end thereof is closed by a base portion of greater size than the diameter of the cylindrical member, said base portion being disposed perpendicular to the longitudinal axis of the cylindrical member. On the exterior surface of the cylindrical member are a plurality of radial flanges, which extend along the length of the cylindrical member, and are attached to the base portion. The threaded anchor is preferably formed from a single sheet of metal. This sheet is fed into a drawing device, whereon the sheet is drawn into a cup shaped member having a closed end. The cup shaped member is placed over a mandrel and the exterior surface of the member is then pinched with means of shorter length than the length of the cup shaped member to form radial flanges on the exterior of the cup shaped member, and a flange at the bottom of the cup shaped member to which the exterior surface flanges are attached. The threads are then formed on the inner surface of the cup shaped member.