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Patent Searching and Data


Title:
TAPERED HEAD CLINCH FASTENER
Document Type and Number:
WIPO Patent Application WO/2017/019912
Kind Code:
A3
Abstract:
A fastener with a tapered head that frictionally mates with a tapered hole in a punched sheet. Frictional attachment is achieved with the fastener head remaining flush with the top of the panel. If a second panel of softer material is placed underneath against the backside of the first panel, in the same pressing step clinch features on the shank of the fastener attach to the second panel and attach the two sheets face-to-face. Attachment of the tapered head with the top panel exploits two different attachment phenomena: a locking taper and, depending on the choice of materials such as stainless steel, attachment by galling.

Inventors:
MALONEY MICHAEL J (US)
Application Number:
US2016/044582
Publication Date:
March 09, 2017
Filing Date:
July 28, 2016
Export Citation:
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Assignee:
PENN ENG & MFG CORP (US)
International Classes:
F16B39/28; F16B19/06; F16B19/08; F16B37/04; F16B39/282
Foreign References:
US3967669A1976-07-06
US20070253658A12007-11-01
US20120324978A12012-12-27
US20040182209A12004-09-23
US5513933A1996-05-07
US20050281635A12005-12-22
Other References:
See also references of EP 3329135A4
Attorney, Agent or Firm:
KONIECZNY, Joseph, M. (Ryder, Lu Mazzeo & Konieczny, LLC,P.O. Box 67, Plymouth Meeting PA, 19462, US)
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