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. 11, 1993
Filed:
Jan. 21, 1992
Applicant:
Inventor:
Thomas M Zinsmeyer, Pennellville, NY (US);
Assignee:
Carrier Corporation, Syracuse, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16K / ; F25B / ;
U.S. Cl.
CPC ...
62216 ; 137433 ; 62190 ;
Abstract
A cylindrical standpipe extends upwardly from the bottom of a liquid refrigerant sump, and vertical slots are formed in the sides thereof near the bottom end. On the inner sides of the standpipe, a sleeve is slideably disposed to uncover the slots as the sleeve is vertically raised. On the outer side of the standpipe a toroidal shaped float device, which is secured to the sleeve by a tube extending through upper side slots in the standpipe, is vertically moveable in response to the level of liquid refrigerant in the sump to thereby regulate the sleeve vertical position and therefore the flow of refrigerant from the sump.