Static structures (e.g. – buildings) – Wall – ceiling – or floor designed for utilities – Having a passageway through the entire wall – ceiling – or...
Reexamination Certificate
2005-03-08
2005-03-08
Chapman, Jeanette E. (Department: 3635)
Static structures (e.g., buildings)
Wall, ceiling, or floor designed for utilities
Having a passageway through the entire wall, ceiling, or...
C052S232000, C052S317000, C137S067000, C137S072000, C137S076000
Reexamination Certificate
active
06862852
ABSTRACT:
The invention releases to a sealing system comprising a cylindrical tube of a material that is capable of deformation under the influence of a temperature increase, and a gasket of an at least partially elastic material for sealingly retaining the tube in a lead-through housing coaxial with the tube by forming a collar therearound, wherein said gasket is made of a fire-retardant material with a base of a cross-linkable material and an expandable material, in such an amount and of such a composition that a temperature increase above the plasticizing point of the tube will cause the gasket to expand to such an extent that the tube is compressed and a medium-tight seal of the lead-through housing and the tube is obtained.
REFERENCES:
patent: 4086736 (1978-05-01), Landrigan
patent: 4796401 (1989-01-01), Wexler
patent: 5058341 (1991-10-01), Harbeke, Jr.
patent: 5103609 (1992-04-01), Thoreson et al.
patent: 5105592 (1992-04-01), MacMillan et al.
patent: 5155957 (1992-10-01), Robertson et al.
patent: 5174077 (1992-12-01), Murota
patent: 5347767 (1994-09-01), Roth
patent: 5351448 (1994-10-01), Gohlke et al.
patent: 5407214 (1995-04-01), Lew et al.
patent: 5427386 (1995-06-01), Breaker
patent: 5456050 (1995-10-01), Ward
patent: 5634304 (1997-06-01), Sakno
patent: 6176052 (2001-01-01), Takahashi
patent: 6470635 (2002-10-01), Cornwall
patent: 2 235 328 (1975-01-01), None
patent: 177 516 (1985-10-01), None
Beele Engineering B.V.
Chapman Jeanette E.
Moser, Patterson & Sheridan L.L.P.
LandOfFree
Sealing system and gasket therefor does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Sealing system and gasket therefor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Sealing system and gasket therefor will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3446579