Diaphragm clamp and kit
CA 2246947 A1 · Owner: Cisalowicz, Richard · Inventors: Cisalowicz, Richard
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This diaphram Clamp Kit is made to work on General Motors and Ford diesel vacuum pumps.Remove diaphram housing from pump assembly grind down the binding clamp around till diaphram housing splits into two (2) pieces. Clean up any sharp edges on the top diaphram cover grind the top of centre pin care must be taken not to damage steel plate as it must be reused. Remove damaged diaphram and save upper and lower plates and tighten plates and centre pin together. Install diaphram housing placing spring on top. Install upper and lower clamps tighten clamps with six (6) screws supplied you may need to puncture, holes to make the screws start thru the thread. Fill pump with approx one (1) ounce of …
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 August 25, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 25, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 25, 2020.
- 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.