Nonsymmetrical compensator for handgun
CA 1287512 C · Owner: Leffel, Rick G. · Inventors: Leffel, Rick G.; Leffel, Leon E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
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Abstract From the Canadian patent
A compensator having an enlarged chamber is threaded onto the barrel of a handgun. The compensator has two equally sized, symmetrically positioned vertical upper ports aligned with matching ports in the threaded portion of the barrel, for vertically exhausting high pressure gas to produce a downward force that resists muzzle climb. The chamber also includes a pair of unequally sized unsymmetrically positioned low pressure ports through which lower pressure gases are exhausted as the bullet leaves the chamber, compensating for rotation produced by the torque produced on the bullet by rifling of the barrel bore as the bullet accelerates.
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
- Granted August 13, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 13, 2008.
- 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.