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. 13, 1983
Filed:
Feb. 08, 1982
Applicant:
Inventor:
Randall G Richards, Cincinnati, OH (US);
Assignee:
The Drackett Company, Cincinnati, OH (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E03D / ; E03D / ;
U.S. Cl.
CPC ...
4228 ; 4227 ;
Abstract
The present invention provides a passive dispenser for use in a toilet tank in which the solution to be dispensed is isolated from the water in the toilet tank. The dispenser comprises of internal reservoir for storing a quantity of the solution, an upper venting means having passive means to provide an upper air-lock, and discharge/refill conduit disposed below the upper venting means, the conduit comprising an air trap chamber and an air refill chamber connected by a transfer port so as to provide a lower air-lock for isolating the solution from the water in the toilet tank.