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:
Jan. 30, 1990
Filed:
Jul. 03, 1989
Applicant:
Inventors:
Andrew H Bradley, Van Wert, OH (US);
Steven M Knowles, Leslie, MI (US);
Frederick J Pilon, Stockbridge, MI (US);
Assignee:
Aeroquip Corporation, Jackson, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16K / ;
U.S. Cl.
CPC ...
1375133 ; 137528 ; 13753317 ;
Abstract
A restrictor for use in conduit systems, such as refrigeration and heat pump circuits for controlling the flow of fluid therein. The restrictor incorporates a unique shape to lower the operational noise normally generated by a restrictor without affecting the flow characteristics. Noise level is reduced by utilizing a specific configuration of the outer surfaces of the restrictor with respect to the direction of fluid flow.