Motorized vacuum/pressure pump and stopper

Details Motorized vacuum/pressure pump and stopper Motorized vacuum/pressure pump and stopper

2006-11-21

2010-06-01

Maust, Timothy L (Department: 3751)

Fluent material handling, with receiver or receiver coacting mea

Evacuation apparatus

C141S008000, C141S302000, C141S326000, C222S545000, C222S546000

Reexamination Certificate

active

07726355

ABSTRACT:
A pump and stopper combination for vacuum or pressure sealing a container. The stopper has a pour opening and a one-way valve movable between an operative position to permit one-way flow of fluid into or out of the container when the pour opening is in the closed position, and an inoperative position when the pour opening is in the open position. A vacuum/pressure pump that connects to the stopper includes a drive adapted to convert rotational movement of a motor to reciprocating motion of a pump piston in a chamber, and one-way pump valves mounted in a selectable flow control member. The selectable flow control member is movable between pressure and vacuum positions to permit passage of fluid only into or out of the pump chamber. The pump also includes an indicator for indicating when a desired level of vacuum or pressure has been reached The pump may be incorporated into a container lid.

REFERENCES:
patent: 1367827 (1921-02-01), Warren
patent: 4473174 (1984-09-01), Heuser
patent: 4763803 (1988-08-01), Schneider
patent: 4911314 (1990-03-01), Schneider
patent: 4954054 (1990-09-01), Neward
patent: 4954065 (1990-09-01), Neward
patent: 4998633 (1991-03-01), Schneider
patent: 5031785 (1991-07-01), Lemme
patent: 5586579 (1996-12-01), Diehl
patent: 5601217 (1997-02-01), Wagner
patent: 5699940 (1997-12-01), Clark, II
patent: 5778763 (1998-07-01), Ford, Sr.
patent: 5794819 (1998-08-01), Smith
patent: 5806575 (1998-09-01), Tsay
patent: 6155313 (2000-12-01), Smalley
patent: 6240962 (2001-06-01), Tai et al.
patent: 6250343 (2001-06-01), Chen
patent: 6257285 (2001-07-01), Robinson et al.
patent: 6390130 (2002-05-01), Guala
patent: 6520071 (2003-02-01), Lanza
patent: 7287545 (2007-10-01), Zelson
patent: 2002/0011276 (2002-01-01), Sander
patent: 2446609 (1976-04-01), None
patent: 19730420 (1999-01-01), None
patent: 19730720 (1999-01-01), None

Affiliated with

Also associated with

Rating

Motorized vacuum/pressure pump and stopper does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Motorized vacuum/pressure pump and stopper, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Motorized vacuum/pressure pump and stopper will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4240096