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:
Apr. 15, 1986
Filed:
Mar. 29, 1985
Peter M Newgard, Redwood City, CA (US);
Maria A Geigel, Menlo Park, CA (US);
The Drackett Company, Cincinnati, OH (US);
Abstract
A sealabe dispenser adapted for mounting in a liquid containing reservoir, said reservoir having closable and openable inlet and outlet ports, the level of the liquid in said reservoir being capable of being lowered and raised by the appropriate manipulation of said inlet and outlet ports, said dispenser comprising at least one storage chamber containing material to be dispensed into said liquid reservoir, said material to be dispensed from said storage chamber by means of said liquid flowing into and out of said storage chamber, said storage chamber being provided with liquid passage means for permitting said liquid to enter and leave said chamber in response to the level of the liquid in said reservoir and venting means to vent the interior of said storage chamber to the atmosphere, moveable sealing means cooperating with said liquid passage means and said venting means to seal and unseal said liquid passage means and said venting means.