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. 27, 1990
Filed:
Mar. 02, 1989
Applicant:
Inventors:
Jean-Paul Barthomeuf, Bourg de Peage, FR;
Gerard Revol, Chabeuil, FR;
Assignee:
Societe de Prospection et d'Inventions Techniques (S.P.I.T.), Bourg-les-Valence, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16B / ;
U.S. Cl.
CPC ...
411 55 ; 411 57 ; 411 61 ;
Abstract
A cone expansion wall-plug is provided comprising a shank (1), a spacer (13) disposed about the shank, an expandable socket (4) and, at the end (5) of the shank (1), a cone (3) for expanding the socket (4). In order to be able to secure an object to be fixed against the edge of the anchorage hole formed within a supporting material for housing the wall-plug, the socket (4) includes a compressible zone (8) in the form of a bellows and bent lugs providing expansion and guiding teeth (10). The socket (4) is formed by die-stamping a metal sheet blank.