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:
May. 13, 1986
Filed:
May. 10, 1984
Josef Metz, Neuss, DE;
Rheinmetall GmbH, Duesseldorf, DE;
Abstract
A pneumatic recuperator mechanism has a sealable valve which communicates a storage chamber with a displacement chamber; the mechanism includes a recoil piston which is connected to the gun barrel and is slidable jointly with a piston rod; the mechanism is improved in such a way, that with a predetermined built-in cross section a simple and light recuperator mechanism with a high heat-free operative readiness is formed. This object is achieved in that the displacement chamber 1 and the storage chamber 2 have the same inner diameter d and are arranged within only one cylinder 3, whereby the recoil piston 5 and the valve 6 are slidably received by the inner wall 4 of the cylinder 3. The valve 6 is advantageously in the shape of a disc and the recoil piston 5 is offset relative thereto. The valve 6 as well as the recoil piston 5 are provided with wear-resistant and delay-free seals 18, 24, 36 and guide bands 7, 23. The arrangement of the recoil piston 5 and the valve 6 permit a lower operative pressure level of the pneumatic working medium with a higher delay-free operative readiness.