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:
Feb. 10, 1981
Filed:
May. 30, 1979
John A George, Uniontown, KS (US);
Other;
Abstract
In a siphon apparatus having at least two legs with a liquid trap therebetween, a liquid holding chamber is provided which communicates with the liquid trap through a restrictive orifice and which fills the liquid trap after the siphon is used, thereby insuring a liquid seal for the next use of the siphon. An overflow device is provided for the liquid trap which cooperates with a trigger mechanism to fill the liquid trap to a predetermined level at the same time assuring the filling of the trigger mechanism. The trigger device may be connected to a plurality of siphons, whereby each siphon flushes simultaneously when a predetermined level is reached in a tank which is to be discharged thereby. Preferably the siphons are conchoidally or spirally shaped, and the holding chamber comprises an inner void thereof. Also the siphon is designed to concentrate head losses near the discharge thereof by bell-shaping the inlet, progressively reducing the cross-sectional area of the legs of the siphon toward the outlet, and by reducing the radius of elbows toward the outlet.