Measuring and testing – With fluid pressure – Leakage
Reexamination Certificate
2005-02-15
2005-02-15
Larkin, Daniel S. (Department: 2856)
Measuring and testing
With fluid pressure
Leakage
C073S040000, C073S049300, C073S052000, C049S477100
Reexamination Certificate
active
06854319
ABSTRACT:
A closure assembly is described which includes a plurality of inflatable seals, a sliding door, and a frame configured to allow said door to slide back and forth therein. The sliding door includes a first portion having an opening therethrough and a second solid portion. The door further include a plurality of grooves, one plurality encircling the opening in the first portion and second plurality encircling the second portion. The inflatable seals are configured to fit into at least one of the grooves encircling each portion. The frame has a middle opening which can be aligned with the first portion of the door for allowing objects to pass through. The frame also has a top opening and a bottom opening which allows changing of the inflatable seals without removing the door from the frame. The assembly provides for a sealing of either portion of the door around the middle opening of the frame.
REFERENCES:
patent: 4184581 (1980-01-01), Crawshay et al.
patent: 4203493 (1980-05-01), Miller
patent: 4223775 (1980-09-01), Lloyd
patent: 4678514 (1987-07-01), Deyhle et al.
patent: 4797091 (1989-01-01), Neumann
patent: 4834914 (1989-05-01), Jackson
patent: 4852392 (1989-08-01), Evans
patent: 4891082 (1990-01-01), Broyles et al.
patent: 4898615 (1990-02-01), Trivino Vazquez et al.
patent: 5040972 (1991-08-01), Kleinhenz et al.
patent: 5122189 (1992-06-01), Garrett et al.
patent: 5123364 (1992-06-01), Gitman et al.
patent: 5156676 (1992-10-01), Garrett et al.
patent: 5263425 (1993-11-01), Koenig
patent: 5349910 (1994-09-01), Hundebol
patent: 5410121 (1995-04-01), Schlienger
patent: 5532448 (1996-07-01), Schlienger
patent: 5675098 (1997-10-01), Hobbs
patent: 5989017 (1999-11-01), Evans
patent: 6045070 (2000-04-01), Davenport
patent: 6203765 (2001-03-01), Taciuk et al.
patent: 6210154 (2001-04-01), Evans et al.
patent: 6213764 (2001-04-01), Evans
patent: 6345981 (2002-02-01), Hansen et al.
patent: 2407326 (1979-06-01), None
Armstrong Teasdale LLP
Continental Cement Company
Larkin Daniel S.
LandOfFree
Methods and apparatus for providing a gas tight enclosure does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Methods and apparatus for providing a gas tight enclosure, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Methods and apparatus for providing a gas tight enclosure will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3455158