Dispenser with improved supply-closing means

Details Dispenser with improved supply-closing means Dispenser with improved supply-closing means

2006-04-20

2011-10-04

Nicolas, Frederick C (Department: 3754)

Dispensing

With material treatment or conditioning means

C222S001000, C222S321700, C222S383100

Reexamination Certificate

active

08028861

ABSTRACT:
The invention relates to a dispenser, particularly suitable for a liquid container, comprising: an air pump with an air cylinder (23) and an air piston (3) axially displaceable in the air cylinder, an air space (19) defined between the air cylinder and the air piston, supply-closing means (39) for closing the air supply to the air pump, discharge-closing means for closing the air discharge from the air pump, a cover (1) connected to the air piston, an air inlet opening (12) in the cover, wherein the air inlet opening debouches directly into the air space, and an annular element (39) which extends axially on the inside of the cover and which comprises an edge part, which edge part is in contact with at least the part of the inner wall of the cover located around the air inlet opening (12).

REFERENCES:
patent: 3369757 (1968-02-01), Boris
patent: 4932567 (1990-06-01), Tanabe et al.
patent: 5289952 (1994-03-01), Gueret et al.
patent: 6536629 (2003-03-01), van der Heijden
patent: 6612468 (2003-09-01), Pritchett et al.
patent: 7048153 (2006-05-01), Gentile
patent: 7275661 (2007-10-01), Iizuka et al.
patent: 7461762 (2008-12-01), Law et al.
patent: 7802701 (2010-09-01), Jahan et al.
patent: 7823751 (2010-11-01), Ophardt et al.
patent: 2002/0056730 (2002-05-01), van de Heijden
patent: 2003/0015552 (2003-01-01), Bistolfi
patent: 2005/0006408 (2005-01-01), Ganzeboom
patent: 2005/0029302 (2005-02-01), Iizuka et al.
patent: 2006/0151538 (2006-07-01), Van Der Heijden
patent: 2007/0151985 (2007-07-01), Iizuka et al.
patent: 0 613 728 (1994-09-01), None
patent: 1 190 775 (2002-03-01), None
patent: 02/42005 (2002-05-01), None
patent: 2004/069418 (2004-08-01), None
patent: WO 2006/112701 (2006-10-01), None

Affiliated with

Also associated with

Rating

Dispenser with improved supply-closing means does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Dispenser with improved supply-closing means, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dispenser with improved supply-closing means will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4279206