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:
Oct. 18, 1994
Filed:
Sep. 29, 1993
Louis J Lengyel, Fairfield, CT (US);
Ramesh B Shenoi, Orangeburg, NY (US);
The Nash Engineering Company, Trumbull, CT (US);
Abstract
In a liquid ring pump having a port member with at least one auxiliary gas discharge port in addition to the main gas discharge port, an auxiliary gas discharge conduit is provided to extend the auxiliary gas discharge port so that a relatively large check valve can be more easily provided for the auxiliary port. The auxiliary discharge conduit is preferably provided in the head member of the pump, and it preferably extends away from the auxiliary port in a generally radial direction. This allows the check valve to be placed at a less congested location in the pump, which facilitates provision of a larger check valve and also access to the check valve for such purposes as maintenance of the check valve.