Viscous liquid dispenser having leak prevention device

Details Viscous liquid dispenser having leak prevention device Viscous liquid dispenser having leak prevention device

2006-05-30

2006-05-30

Mar, Michael (Department: 3754)

Dispensing

With lock or fastening seal

Inhibiting operation of flow controller or closure

C222S321200, C222S321900, C222S341000

Reexamination Certificate

active

07051903

ABSTRACT:
A dispenser for dispensing metered amounts of a viscous liquid includes a liquid reservoir and a pump chamber having an opening in communication with the reservoir. A pump mechanism including a pump cylinder with a dispensing channel therethrough is configured with the pump chamber and is movable from a rest to a pressurizing position upon actuation thereof to pressurize liquid within the pump chamber. A dispensing orifice is defined at one end of the dispensing cylinder. A check valve mechanism is disposed in the opening. During shipment or storage, the pump cylinder is locked in pressurized position. When locked in pressurized position, the dispensing channel engages the check valve to seal the opening and also prevent flow from the pump chamber to the dispensing channel.

REFERENCES:
patent: 2804240 (1957-08-01), Anderson
patent: 2956509 (1960-10-01), Cooprider et al.
patent: 3321111 (1967-05-01), Jellinek
patent: 4174056 (1979-11-01), Loeffler
patent: 4286736 (1981-09-01), Corsette
patent: 4340158 (1982-07-01), Ford et al.
patent: 4375266 (1983-03-01), Magers
patent: 4410107 (1983-10-01), Corsette
patent: 4441633 (1984-04-01), Bennett
patent: 4479589 (1984-10-01), Ford
patent: 4512501 (1985-04-01), Foster
patent: 4524888 (1985-06-01), Tada
patent: 5184760 (1993-02-01), Weinstein et al.
patent: 5379919 (1995-01-01), Gueret
patent: 5615806 (1997-04-01), Grothoff
patent: 5720419 (1998-02-01), Li
patent: 5810203 (1998-09-01), Brennan
patent: 5860574 (1999-01-01), Shanklin et al.
patent: 5975372 (1999-11-01), Heyn
patent: 6206245 (2001-03-01), Bonningue
patent: 6516976 (2003-02-01), Lewis et al.
patent: 6533145 (2003-03-01), Lewis et al.
patent: 6543651 (2003-04-01), Lewis et al.
patent: 6575334 (2003-06-01), Lewis et al.
patent: 6575335 (2003-06-01), Lewis et al.
patent: 6726064 (2004-04-01), Bonningue
patent: 2002/0047571 (2002-04-01), Yoshioka et al.
patent: 2002/0074354 (2002-06-01), Lewis et al.
patent: 2002/0074355 (2002-06-01), Lewis et al.
patent: 2002/0100772 (2002-08-01), Bonningue
patent: 2034799 (1980-06-01), None
patent: WO 02/49490 (2002-06-01), None
Patent Abstracts of Japan, JP 10028907, Feb. 3, 1998, Mitani Valve:KK.
Patent Abstracts of Japan, JP 1258757, Oct. 16, 1989.

Affiliated with

Also associated with

Rating

Viscous liquid dispenser having leak prevention device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Viscous liquid dispenser having leak prevention device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Viscous liquid dispenser having leak prevention device will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3644179