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. 30, 1977
Filed:
Oct. 06, 1975
Henry A Waller, Woodland Hills, CA (US);
Consolidated Controls Corporation, Bethel, CT (US);
Abstract
A high energy loss fluid flow control device comprises a housing having an annular wall with an inlet adjacent one end and an outlet adjacent the other end. The housing wall includes an inside surface formed with a continuous helical land and groove defining at least a part of a helical flow passage between the inlet and outlet. A valve member is mounted in the housing for movement toward and away from the inlet and has an outer surface formed with a continuous helical land and groove also defining at least a part of the helical flow passage extending between opposite ends of the member. The land of the valve member projects into the groove of the housing and the land of the housing wall projects into the groove of the valve member forming the continuous helical flow passage extending between the inlet and outlet and means is provided for supporting the valve member in the housing for relative rotation to move toward and away from the inlet to lengthen or shorten the continuous flow passage as desired.