Pipe joints or couplings – Packed – Wedge
Patent
1997-02-28
1999-07-13
Nicholson, Eric K.
Pipe joints or couplings
Packed
Wedge
285239, 285257, 2851311, F16L 3712
Patent
active
059215925
ABSTRACT:
A duct joiner for connecting an air duct to another duct or other part of an air conditioning system has a tubular neck portion, a retaining clip and a sealing ring both mounted on the neck portion. The retaining clip has a ring portion received in a groove in the outer surface of the neck portion and a series of resilient teeth extending outwardly from the ring portion. The teeth are resiliently deformable to allow a hollow duct to be fitted over the neck portion and have either sharp edges or barbs thereon which dig into the internal surface of the duct to retain the duct on the neck portion of the joiner. The sealing ring has a ring section received in another groove in the outer surface of the neck portion and a resilient skirt which provides a seal between the neck portion of the joiner and the duct. The joiner may have one or more other neck portions with respective retaining clips and sealing rings for joining one duct to one or more other ducts. In other embodiments, the joiner may be provided with an air outlet portion such as a diffuser outlet.
REFERENCES:
patent: 589216 (1897-08-01), McKee
patent: 2142768 (1939-01-01), Tompkins
patent: 2225208 (1940-12-01), Crickmer
patent: 2457077 (1948-12-01), Woolsey
patent: 2739615 (1956-03-01), Wurzel
patent: 2921606 (1960-01-01), McCauley
patent: 3221746 (1965-12-01), Noble
patent: 3712649 (1973-01-01), Martin
patent: 3773360 (1973-11-01), Timbers
patent: 3920270 (1975-11-01), Babb, Jr.
patent: 3997196 (1976-12-01), Karcher et al.
patent: 4099749 (1978-07-01), van Vliet
patent: 4105226 (1978-08-01), Frey et al.
patent: 4411302 (1983-10-01), Kuypers
patent: 4471978 (1984-09-01), Kramer
patent: 4491124 (1985-01-01), Goettel
patent: 4610468 (1986-09-01), Wood
patent: 4613172 (1986-09-01), Schattmaier
patent: 4643466 (1987-02-01), Conner et al.
patent: 4997213 (1991-03-01), Traner et al.
patent: 5009454 (1991-04-01), Bartholomew
patent: 5064227 (1991-11-01), Spors et al.
patent: 5213377 (1993-05-01), Humpert et al.
patent: 5259650 (1993-11-01), Gnauert et al.
Nicholson Eric K.
Talana Investments Limited
LandOfFree
Duct joiner and retaining clip 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 Duct joiner and retaining clip therefor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Duct joiner and retaining clip therefor will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2269492