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:
Aug. 10, 1976
Filed:
Sep. 03, 1974
Applicant:
Inventors:
Assignee:
AGFA-Gevaert, A.G., Leverkusen, DT;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B23P / ; B23P / ;
U.S. Cl.
CPC ...
2915 / ; 29405 ; 141-8 ; 141 67 ; 141114 ; 156145 ; 53 37 ;
Abstract
For filling and adjusting double-membrane cassettes acting as link members in piston metering pumps, the sealing surfaces of the membranes are first coated with a resilient pressure-deformable cement. The membrane cassette is introduced still unclosed into a thermostat where an adjustable, uniform pressure is applied to the upper membrane. The membrane cassette is then filled under an excess pressure of from 0.2 to 1 atm. and closed. After closing, the membranes of the cassette are brought into plane-parallel alignment in an evacuation unit.