Piston for fluid container

Details Piston for fluid container Piston for fluid container

2007-12-11

2007-12-11

Shaver, Kevin (Department: 3754)

Dispensing

With discharge assistant

Container with follower

C222S207000, C222S257000

Reexamination Certificate

active

11678536

ABSTRACT:
A piston configured to be engaged inside a cylindrical container includes: a sliding member having an upper fluidtight portion and a lower fluidtight portion; and a support member connected to the sliding member and having concentric flexions for urging the sliding member against the inner wall of the cylindrical container. The upper and lower fluidtight portions are each constituted by at least one annular convex bump portion having a thickness which is the greatest at a point where the annular convex bump portion is in contact with the inner wall of the cylinder.

REFERENCES:
patent: 31408 (1861-02-01), Czech
patent: 4030643 (1977-06-01), van Manen
patent: 4438871 (1984-03-01), Eckert
patent: 4913322 (1990-04-01), Stoffer et al.
patent: 5000355 (1991-03-01), Pritchard
patent: 5052592 (1991-10-01), Wilken et al.
patent: 5377880 (1995-01-01), Moretti
patent: 5673821 (1997-10-01), Davis et al.
patent: 5697531 (1997-12-01), Fattori
patent: 5738067 (1998-04-01), Landwehr et al.
patent: 5819990 (1998-10-01), Cimentepe et al.
patent: 5823394 (1998-10-01), Davis et al.
patent: 6962273 (2005-11-01), Masuda
patent: 2002/0166876 (2002-11-01), Masuda
patent: 2003/0230600 (2003-12-01), Masuda
patent: 299 16 779 (2001-03-01), None
patent: 0276983 (1988-03-01), None
patent: 08-280804 (1996-10-01), None

Affiliated with

Also associated with

Rating

Piston for fluid container does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Piston for fluid container, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Piston for fluid container will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3877016