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:
Feb. 06, 1979
Filed:
Oct. 13, 1977
Applicant:
Inventor:
Ernest E Yeo, Wenham, MA (US);
Assignee:
Swanson-Erie Corporation, Erie, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B65B / ; G01M / ; H01J / ; H01J / ;
U.S. Cl.
CPC ...
141 65 ; 73 40 ; 141 83 ; 316 30 ;
Abstract
A coupling head suitable to be supported on a transporting means for coupling an object to be evacuated to a vacuum line. The coupling has a ball valve and a poppet valve for connecting and disconnecting the vacuum and gas pressure to the object. Leaks in the object can be detected by a sensing device actuated by a bellows on the coupling head.