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.

Date of Patent:
Jan. 12, 1999

Filed:

Mar. 31, 1997
Applicant:
Inventors:

Burkhard Corves, Zug, CH;

Rudolf Schwegler, Kusnacht, CH;

Leo Diehm, Cham, CH;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F15B / ;
U.S. Cl.
CPC ...
91450 ; 91444 ; 91DI / ;
Abstract

A pneumatic circuit for use in causing rapid, upward movement of a piston and cylinder device in a glass machine incorporates a supplementary valve which connects an upper part of the cylinder to exhaust for part of the upstroke, and through a restrictor valve to exhaust towards the end of the upstroke.


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