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:
Nov. 14, 1978
Filed:
Dec. 23, 1977
Charles L McClure, Malvern, PA (US);
Pro-Tech, Inc., Paoli, PA (US);
Abstract
A probe adapted to fit into the end of a sewer or water pipe or conduit is provided with a weir plate and with a bubble tube for sensing the depth of flow over the weir and thus, determining the flow rate. A V-notch weir plate is made up of a pair of partially overlapping pieces individually joined to flexible supporting means, and one or both disjoined therefrom at the overlap. The angle of the V varies upon flexing of the supporting means, as when compressed for insertion into a pipe, and the apex of the V is at the beginning of the overlap, above the invert of the pipe when in place. The bubble tube has one or more bubble outlets at the apex level but preferably spaced upstream somewhat. Except for the weir plate itself all parts of the probe inside the pipe lie along the pipe wall for minimum disturbance of the flow.