Pipe joints or couplings – Materials – Sheet
Reexamination Certificate
2011-08-09
2011-08-09
Bochna, David E (Department: 3679)
Pipe joints or couplings
Materials
Sheet
C138S164000, C138S166000
Reexamination Certificate
active
07992904
ABSTRACT:
HVAC ductwork should be sealed along its joints in order to reduce air leakage. The ductwork can be sealed by the combination of a gasket and mechanical locking mechanism.
REFERENCES:
patent: 467999 (1892-02-01), Southard
patent: 572076 (1896-11-01), Smith
patent: 701468 (1902-06-01), Clausing
patent: 1152568 (1915-09-01), Stearns
patent: 1308981 (1919-07-01), Buller
patent: 1324602 (1919-12-01), Lorenz
patent: 1429822 (1922-09-01), Acer
patent: 1935690 (1933-11-01), Zack
patent: 2038389 (1936-04-01), Siebenlist
patent: 2147775 (1939-02-01), Miller et al.
patent: 2225556 (1940-12-01), Delaney
patent: 2866481 (1958-12-01), Bratsch
patent: 2936184 (1960-05-01), Epstein
patent: 3146950 (1964-09-01), Lancaster
patent: 3170544 (1965-02-01), Kinkead et al.
patent: 3246918 (1966-04-01), Burghart
patent: 3315970 (1967-04-01), Holoway
patent: 3369568 (1968-02-01), Davis et al.
patent: 3848308 (1974-11-01), Kaval
patent: 4018461 (1977-04-01), Bram
patent: 4040651 (1977-08-01), LaBranche
patent: 4082322 (1978-04-01), Lever
patent: 4099747 (1978-07-01), Meserole
patent: 4218079 (1980-08-01), Arnoldt
patent: 4820569 (1989-04-01), Hinden
patent: 4846147 (1989-07-01), Townsend et al.
patent: 4865890 (1989-09-01), Erlichman
patent: 4874191 (1989-10-01), Green
patent: 4902049 (1990-02-01), Umehara
patent: 4930815 (1990-06-01), Tuggler, Jr.
patent: 4941693 (1990-07-01), Spaude et al.
patent: 5195789 (1993-03-01), Walsh et al.
patent: 5346264 (1994-09-01), Law et al.
patent: 5393106 (1995-02-01), Schroeder
patent: 5505230 (1996-04-01), Bartholomew
patent: 5662360 (1997-09-01), Guzowski
patent: 6026803 (2000-02-01), Wawrla
patent: 6062608 (2000-05-01), Gerth
patent: 6244633 (2001-06-01), Warren
patent: 6279967 (2001-08-01), Proctor et al.
patent: 6431609 (2002-08-01), Andersson
patent: 6634352 (2003-10-01), Maiello
patent: 6640461 (2003-11-01), Berger
patent: 6739632 (2004-05-01), Thomas et al.
patent: 6866308 (2005-03-01), Issagholian-Havai
patent: 7125054 (2006-10-01), Jones
patent: 7347224 (2008-03-01), Nohara et al.
patent: 7393021 (2008-07-01), Lukjan
patent: 7708034 (2010-05-01), Gudenburr et al.
patent: 2001/0026048 (2001-10-01), Proctor et al.
patent: 2003/0108381 (2003-06-01), Walsh et al.
patent: 2004/0218975 (2004-11-01), Walsh et al.
patent: 200 10 253 (2000-08-01), None
Q-41-20 Robofoam Mastic Sealant, Q'SO Product Data, Dec. 1997, Q'SO Incorporated, Saginaw.
The Modern Way to Seal Ductwork, Autosealer, Ductmate Industries, Inc., Mar. 6, 1986, pp. 1-6, United States of America.
T1 The New Standard for Round Air Ducts, SNIPS magazine, Apr. 2006, BNP Media, Troy, MI.
James Gerard, Declaration of James Gerard 37 CFR 1.132, May 21, 2007, pp. 1-2, Pittsburgh.
Armstrong Christopher A.
Bloom Vincent L.
Gudenburr Douglas G.
Male Andrew J.
Beck & Thomas, P.C.
Bochna David E
Ductmate Industries, Inc.
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