Trailer brake system with release apparatus
CA 2131163 A1 · Owner: Null, Robert L. · Inventors: Null, Robert L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A trailer brake system includes apparatus to provide release of the brake pads pads (48,50) from engagement with the rotor (55) upon braking. Each brake assembly includes a stationary bracket (30) for attachment to the axle (25) and a caliper unit (45) with the brake pads (48,50) mounted by a single pivot pin (36) on the bracket (30). A relief valve (80) is engaged by the pivoting caliper unit (45) to provide the release of the brake pads (48,50). The bracket (30) includes a support ring (32) for direct mounting on the axle (25) and an integral yoke (33) above the ring (32); one arm of the yoke (35) limiting the pivoting movement of the caliper unit (45) in one direction by a fixed stop …
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
- Filed February 23, 1993. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 23, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 23, 2015.
- 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.