Airless dispensing pump

Details Airless dispensing pump Airless dispensing pump

2011-02-22

2011-02-22

Nicolas, Frederick C. (Department: 3754)

Dispensing

Processes of dispensing

C222S256000, C222S259000, C222S321900, C222S387000, C141S002000

Reexamination Certificate

active

07891522

ABSTRACT:
An airless dispenser pump assembly includes a pump mechanism with an inlet valve that is configured to efficiently pump viscous fluids and that is able to be pre-primed when the pump mechanism is attached to a container. In one form, the inlet valve includes a seal member that seals an inlet port of the pump and an outer support member that secures the inlet valve to the rest of the pump mechanism. Two or more legs generally extend in a circumferential direction between the support member and the seal member in order to create a large flow opening for fluid flow through the inlet valve when opened and to rapidly close the inlet valve. The pump mechanism further includes an outlet valve that is configured to draw fluid back from a nozzle of the pump after dispensing in order to minimize build up around the nozzle.

REFERENCES:
patent: 3403823 (1968-10-01), O'Donnell
patent: 4039139 (1977-08-01), Bird
patent: 4139311 (1979-02-01), Lorscheidt
patent: 4154371 (1979-05-01), Kolaczinski et al.
patent: 4323175 (1982-04-01), Eckert
patent: 4394939 (1983-07-01), Thor et al.
patent: 4402431 (1983-09-01), Wiegner et al.
patent: 4438871 (1984-03-01), Eckert
patent: 4479589 (1984-10-01), Ford
patent: 4485943 (1984-12-01), Czech
patent: 4558821 (1985-12-01), Tada et al.
patent: 4564130 (1986-01-01), Eulenburg
patent: 4579147 (1986-04-01), Davies et al.
patent: 4589574 (1986-05-01), Foster
patent: 4781483 (1988-11-01), Lorscheidt
patent: 4889262 (1989-12-01), Toms
patent: RE33247 (1990-07-01), Bossina
patent: 4945941 (1990-08-01), Kocher
patent: 4991746 (1991-02-01), Schultz
patent: 5067531 (1991-11-01), Herzog
patent: 5096094 (1992-03-01), Guilbert
patent: 5209044 (1993-05-01), D'Addario et al.
patent: 5310112 (1994-05-01), Meshberg
patent: 5356043 (1994-10-01), Glynn
patent: 5397035 (1995-03-01), Law
patent: 5445299 (1995-08-01), Harriman
patent: 5497915 (1996-03-01), Wass
patent: 5615806 (1997-04-01), Grothoff
patent: 5655685 (1997-08-01), Carr et al.
patent: 5664703 (1997-09-01), Reifenberger et al.
patent: 5673821 (1997-10-01), Davis et al.
patent: 5816453 (1998-10-01), Spencer et al.
patent: 5823394 (1998-10-01), Davis et al.
patent: 5842605 (1998-12-01), Lehmkuhl
patent: 5884820 (1999-03-01), Thanisch et al.
patent: 5924604 (1999-07-01), Shimada et al.
patent: 5941422 (1999-08-01), Struble et al.
patent: 5975370 (1999-11-01), Durliat
patent: 5992442 (1999-11-01), Urquhart et al.
patent: 6213633 (2001-04-01), Kramer et al.
patent: 6240979 (2001-06-01), Lorscheidt
patent: 6257440 (2001-07-01), Perkins et al.
patent: 6269981 (2001-08-01), Nielsen
patent: 6309124 (2001-10-01), Gueret
patent: 6321908 (2001-11-01), Lorscheidt
patent: 6371333 (2002-04-01), Lorscheidt et al.
patent: 6533145 (2003-03-01), Lewis et al.
patent: 6729501 (2004-05-01), Peterson
patent: 6752153 (2004-06-01), Eckert
patent: 6772916 (2004-08-01), Reynolds
patent: 6890162 (2005-05-01), Ding
patent: 7059501 (2006-06-01), Masuda
patent: 7111761 (2006-09-01), Masuda
patent: 7654418 (2010-02-01), Law et al.
patent: 2001/0019068 (2001-09-01), Bloom
patent: 2001/0025863 (2001-10-01), Lorscheidt
patent: 2003/0075567 (2003-04-01), Santagiuliana
patent: 2003/0089738 (2003-05-01), Peterson
patent: 2003/0168475 (2003-09-01), Heukamp
patent: 2003/0168477 (2003-09-01), Heukamp
patent: 2003/0231923 (2003-12-01), Heukamp
patent: 2004/0007601 (2004-01-01), Masuda
patent: 2004/0206781 (2004-10-01), Lorscheidt
patent: 2004/0206783 (2004-10-01), Danne et al.
patent: 2 297 308 (2004-07-01), None
patent: 2483350 (2002-03-01), None
patent: 2493753 (2002-05-01), None
patent: 1378883 (2002-11-01), None
patent: 2521166 (2002-11-01), None
patent: 1 015 340 (1998-09-01), None
patent: 1 384 517 (2004-01-01), None
patent: 2 103 298 (1983-02-01), None
patent: WO 92/22467 (1992-12-01), None
patent: WO 99/15425 (1999-04-01), None
patent: WO 99/39982 (1999-08-01), None
patent: WO 02/43872 (2002-06-01), None
patent: WO 03/028898 (2003-04-01), None
patent: WO 2005/021395 (2005-03-01), None
EP Search Report dated Feb. 5, 2008 issued in EP Application No. 06253488.8.
European Patent Application 06 25 3488 Search Report mailed Apr. 7, 2008.
European Patent Application No. 05 25 4105 Search Report mailed Nov. 24, 2008.
First Office Action dated Jan. 4, 2008 in Chinese Patent Application No. 200510087501.9, application filed Jul. 20, 2005.
Machine Translation of WO 92/22467 A1 to Herrmann.

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