Static structures (e.g. – buildings) – Irreversibly reactive component
Reexamination Certificate
2008-05-20
2008-05-20
Chapman, Jeanette (Department: 3635)
Static structures (e.g., buildings)
Irreversibly reactive component
C052S220800, C052S317000
Reexamination Certificate
active
07373761
ABSTRACT:
A self-adjusting firestopping apparatus for holding of intumescent material within poke-through openings in construction barriers usually being floors but also possibly being walls or ceilings wherein cables or other penetrating members extend therethrough. The self-adjusting apparatus includes a sleeve with the intumescent material centrally located therein and preferably two plates extending along the sleeve and movably attached thereto by a flexibly resilient support device such as a coil spring or flat spring. This plate provides a movable false panel which is adapted to expand responsive to the placement of increasing numbers of penetrating members extending therethrough to increase the capacity of the intumescent firestopping device.
REFERENCES:
patent: 4109423 (1978-08-01), Perrain
patent: 4136707 (1979-01-01), Gaillot et al.
patent: 4264779 (1981-04-01), Rhodes et al.
patent: 4646486 (1987-03-01), Hauff
patent: 4964180 (1990-10-01), Harbeke
patent: 5257641 (1993-11-01), Elsbury et al.
patent: 5301475 (1994-04-01), Stefely
patent: 5331946 (1994-07-01), Yamini et al.
patent: 5421127 (1995-06-01), Stefely
patent: 6018126 (2000-01-01), Castellani et al.
patent: 6114623 (2000-09-01), Bonilla et al.
patent: 6175078 (2001-01-01), Bambardekar et al.
patent: 6307152 (2001-10-01), Bonilla et al.
patent: 6314692 (2001-11-01), Munzenberger et al.
patent: 6360502 (2002-03-01), Stahl, Jr.
patent: 6417446 (2002-07-01), Whitehead
patent: 6518498 (2003-02-01), Bonilla et al.
patent: 6536169 (2003-03-01), Dykhoff
patent: 6551130 (2003-04-01), Bonilla
patent: 6612081 (2003-09-01), Cole et al.
patent: 6696640 (2004-02-01), Castellani et al.
patent: 6718100 (2004-04-01), Morris
patent: 6720495 (2004-04-01), Castellani et al.
patent: 6732481 (2004-05-01), Stahl, Sr.
patent: 6750395 (2004-06-01), Stout et al.
patent: 6783345 (2004-08-01), Morgan et al.
patent: 6848227 (2005-02-01), Whitty
patent: 6969799 (2005-11-01), Snyder
patent: 2003/0051423 (2003-03-01), Munzenberger
Chapman Jeanette
Plummer Elizabeth A
Specified Technologies Inc.
Sperry, Zoda & Kane
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