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:
Aug. 02, 1983
Filed:
Jun. 26, 1981
Jon E Oppenlander, Lafayette, CA (US);
Scientific Manufacturing Industries, Inc., Emeryville, CA (US);
Abstract
An adjustable volume dispenser comprises a barrel assembly having an internally threaded tubular portion, an adjustable stop formed with external threads engaged with the internal threaded tubular portion of said assembly, and a sleeve coaxially mounted within the tubular portion and rotatable therein, said sleeve being connected to the adjustable stop for imparting rotation thereto but allowing said stop to move axially thereon. A finger engageable wheel connects to the sleeve for rotating the adjustable stop relative to the barrel assembly, a plurality of numbered wheels being coaxially connected to the finger engageable wheel for indicating the position of the stop and the volume of liquid to be dispensed. A plunger assembly is provided including a rod reciprocally removeable within the barrel assembly, said rod extending coaxially through the adjustable stop, the sleeve and said wheels. The rod carries a fixed stop which cooperates with the adjustable stop, limiting the reciprocating throw of the plunger assembly.