Air gun with baffle for limiting maxium velocity
CA 2079838 A1 · Owner: Crosman Corporation · Inventors: Milliman, Keith L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
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Abstract From the Canadian patent
Abstract of the Disclosure, An air gun includes a valve assembly with a sliding baffle for limiting the maximum velocity and energy which can be provided by the gun. The valve assembly includes a valve body which has a pressure reservoir, and air passage and a valve seat, between the pressure reservoir and the air passage. A valve normally closes the valve seat to hold pressure in the pressure reservoir and is moved away from the valve seat when the gun is fired. A bleed opening in the valve body connects the air, passage to the outside of the valve body and an exhaust opening, connects the air passage to the barrel of the gun. The baffle is slidably mounted in the air passage and is …
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.
Why it's free to use
- Filed October 5, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 5, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 5, 2014.
- 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.