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:
Jul. 03, 1990
Filed:
Jan. 18, 1989
William J Schmidt, Xenia, OH (US);
Vernay Laboratories, Inc., Yellow Springs, OH (US);
Abstract
A flow control for controlling the rate of flow of a fluid through a flow passage over a range of varying line pressures resembles a Belleville washer and is molded from a thermoplastic elastomer having a hardness range from 40 Shore A to 50 Shore D. The control has a circumferential outer rim and a dome-shaped contour within the rim which provides an apex, a concave downstream surface and a convex upstream surface, with the fluid flow passage extending through its apex. This flow control does not require interaction with a specifically designed seat but can simply be mounted across the flow passage which it is to control by retaining its rim portion upstream from the flow passage to be controlled.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile