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:
Dec. 18, 1979
Filed:
Mar. 20, 1978
Brian E Foreman, Rochester, IN (US);
Mark A Jones, Rochester, IN (US);
Burton Mechanical Contractors, Inc., Rochester, IN (US);
Abstract
A vacuum system for transmitting intermittently injected sewage including a collection tank fed by a gravity operated sewage pipe for holding sewage at atmospheric pressure. The sewage is intermittently injected into a vacuum line under the influence of atmospheric pressure when a sewage injection valve is opened. The vacuum sewage line is connected between the injection valve and a vacuum collection tank, the vacuum collection tank having a source of vacuum pressure applied thereto. A vacuum line section is laid out in a sawtooth fashion, having a riser, a low point, and a downslope. When no sewage is being transported through the vacuum conduit, the sewage remaining in the conduit collects in the low point. The low point does not completely fill with sewage so that vacuum pressure is communicated throughout the vacuum line. When the sewage injection valve is opened, the sewage going through the vacuum line forms a hollow cylindrical mass which sweeps toward the vacuum collection tank.