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. 11, 1998
Filed:
Aug. 15, 1996
Applicant:
Inventors:
William D Homberg, Oakland, CA (US);
Christopher Kelly, Larkspur, CA (US);
Kenneth Rainin, Piedmont, CA (US);
Haakon T Magnussen, Jr, Orinda, CA (US);
Assignee:
Rainin Instrument Co., Inc., Emeryville, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01L / ; G01N / ;
U.S. Cl.
CPC ...
422100 ; 422103 ; 7386416 ; 7386418 ; 436180 ;
Abstract
A manual pipette including a delayed action home position latch for engaging only after the plunger unit of the pipette has moved downward through its home position to thereafter releasably connect a moveable bottom stop member to the plunger unit to move therewith and upon an upward return of the plunger unit by the pipette's return spring to engage a home position stop to releasably lock the plunger unit in its home position without any downward force being exerted by the pipette user on the plunger unit.