Safety track support and coupling
CA 1297848 C · Owner: Barrow Hepburn Sala Limited · Inventors: Sharp, George P.; Brown, Thomas W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Safety apparatus for used by workers at height comprises a fixed safety cable (1) secured in spaced relation to a fixture (2) by supports such as (3) and a, coupling device (8) by which a safety line attached to a workers safety harness can be coupled to such cable. The coupling device comprises a rotatably mounted tube (9) having a longitudinal slot (16) and profiled ends (9'). The tube (9) is slidable along the cable (1). On abutment of a tube end (9') against an arm (5) of a support (3) the tube becomes rotatated to bring the slot (16) into register with the arm (5) so that the coupling device can travel past the support (3). (Fig. 1)
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted March 24, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 24, 2009.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.