Patents by Inventor Jean-Francois Archer

Jean-Francois Archer has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 4294479
    Abstract: A safety lifting hook comprises a safety latch mounted on the hook body for pivotal movement about a horizontal axis in the plane of the hook body. The latch has two opposed noses, and in a safety position of the latch, one of the noses is situated in the vicinity of the nose of the hook and the second nose is retained by a locking pawl. The locking pawl is pivotally mounted about an axis transverse to the pivot axis of the latch and is spring-biased into a position in which it retains the second nose of the latch.
    Type: Grant
    Filed: January 17, 1980
    Date of Patent: October 13, 1981
    Assignee: Stas Societe Technique d'Accessoires Specialises S.A.
    Inventor: Jean-Francois Archer
  • Patent number: 4162095
    Abstract: A cable sling comprises a loop formed by folding back one end of the cable and retaining this end adjacent another part of the cable by means of a sleeve. A marking plate carrying indicia, such as the load-bearing capacity of the sling, is held within the loop adjacent the sleeve. The marking plate is of U-shaped form and is retained within the loop by a U-shaped retaining cable which is threaded through the plate, with the free ends of the retaining cable being anchored within the sleeve.
    Type: Grant
    Filed: April 29, 1977
    Date of Patent: July 24, 1979
    Assignee: Stas - Societe Technique d'Accessoire Specialises
    Inventor: Jean-Francois Archer
  • Patent number: 4013314
    Abstract: A lifting hook with a generally J-shaped body carries a spring-loaded safety catch which is swingable between an operating position across the hook mouth and a retracted position alongside the longer leg of the "J." In its operating position the catch is arrested by an abutment coming to rest against this longer leg, leaving a gap between the extended catch and the free end of the shorter leg of the J. The shorter leg progressively increases in width, from the bight of the J to its tip, and substantially parallels a pair of lateral ribs on the longer leg which lie close to the catch in its retracted position. In one embodiment, an eye-forming rim at the top of the hook has two lateral projections overhanging the pivot of the catch, the width of the hook body at the free end of its shorter leg substantially equaling its width at the projections and at the ribs.
    Type: Grant
    Filed: March 27, 1975
    Date of Patent: March 22, 1977
    Inventor: Jean-Francois Archer