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. 24, 1987
Filed:
Jul. 31, 1986
Applicant:
Inventors:
Clifford J Ludwig, Southgate, KY (US);
Anthony D Delia, West Redding, CT (US);
Assignee:
The Drackett Company, Cincinnati, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E03D / ;
U.S. Cl.
CPC ...
4228 ; 4227 ; 4222 ;
Abstract
A toilet tank dispenser having an inlet/outlet tube and including a valve which restricts water flow in one direction while not substantially restricting water flow in the opposite direction. The valve causes the water flowing into the inlet/outlet tube during the filling cycle to flow sufficiently slowly to create an air space in the tube. The air space becomes an air bubble in the top of the inlet/outlet tube during quiescent periods to isolate the dispenser contents from the tank.