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:
Sep. 10, 1985
Filed:
Nov. 28, 1983
William D Ellsworth, Fairport, NY (US);
Other;
Abstract
Fluid under pressure, such as compressed air, is applied to one end of an elongate, thin, tubular plenum, the opposite end of which exhausts to the atmosphere. The plenum has intermediate its ends a plurality of axially spaced exhaust ports, which are connected to a valve mechanism having a rotary or reciprocable valve stem, which can be adjusted selectively to connect any one of the plenum exhaust ports through a single output port to a pneumatically operated device. The pressure of the air traveling through the plenum drops at a substantially linear rate, so that the pressures at the spaced exhaust ports can be plotted against the respective distances of these ports from the inlet end of the tubular plenum, thereby to provide a curve which can be used for predicting the pressure at any given point along the length of the plenum.