Shear seal assembly
CA 1114860 A · Owner: Caterpillar Tractor Co. · Inventors: Fee, David M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
13-, Shear Seal Assembly, Abstract, A shear seal assembly has an inner sleeve and an outer sleeve with an elastomeric material bonded therebetween. One sleeve has a circumferential groove formed in the exposed wall thereof in which groove an O-ring nests. The assembly is mounted between two telescoping members that have limited relative rotation. The sleeve without the groove is press fit on or in one member and the sleeve with the groove will be spaced from the other member so that the O-ring will extend from the groove into sealing contact with said other member. Clips or retainers are provided for seating the grooved sleeve to said other member whereby limited relative rotation or …
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 December 22, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 22, 1998.
- 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.