The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 06, 2001
Filed:
Jul. 14, 1999
Michael Gerber, Zurich, CH;
Gabriel Schneider, Zurich, CH;
Oerlikon Contraves AG, Zurich, CH;
Abstract
The service life of gun barrels of firearms with a high cyclic rate can be extended by means of the cooling device of the invention. To this end, coolant (,) is conveyed from a reservoir (,) into a pressure cylinder (,) by drawing up a hydraulic cylinder (,), while the feed line (,) to the gun barrel is closed. Thereafter the hydraulic piston (,) is moved in the opposite direction by a pressure reversal and the coolant (,) in the pressure cylinder (,) is placed under a defined operating pressure. Prior to triggering a volley, the feed line (,) is opened, so that the coolant (,) can flow via the feed line (,) and the nozzle (,) to the gun barrel (,). The coolant (,) is pushed back by the gas pressure respectively being created when a shot is fired, and following the lowering of the gas pressure to the operating pressure, it is again injected into the gun barrel (,).