Pipe joints or couplings – Ball and socket – Spring-biased packing
Reexamination Certificate
2005-04-19
2005-04-19
Dunwoody, Aaron (Department: 3679)
Pipe joints or couplings
Ball and socket
Spring-biased packing
C285S095000, C285S349000, C277S616000
Reexamination Certificate
active
06880863
ABSTRACT:
A flexible joint for connection between a pair of conduits for transferring a gas, under pressure, between the conduits. The joint includes a hollow, annular inner member for connection to one of the conduits which defines a spherically shaped, convex seal receiving surface and a hollow annular outer member which defines a spherically shaped, concave seal receiving surface for connection to another of the conduits. The outer member is mounted over the inner member such that the convex and concave surfaces are spaced apart and movable relative to one another about a common center point. Both the inner and outer members are open on opposite sides of their respective spherically shaped surfaces. The outer member may include and outer part and an intermediate part which is removably connected to the outer part. One of the members contains a single seal ring assembly retainer groove which opens toward and opposing one of the surfaces and which is centered on the center point. The other of the members contains a pair of spaced apart and registered seal ring retainer grooves having a common center line which intersects the center point. The grooves contain seal ring assemblies, each of which include at least one seal ring having a spherically shaped bearing surface which conforms to and engages an opposing one of the seal receiving surfaces.
REFERENCES:
patent: 203611 (1878-05-01), Graydon
patent: 2220120 (1940-11-01), Plummer
patent: 2417491 (1947-03-01), Hill
patent: 2421691 (1947-06-01), Gibson, Jr. et al.
patent: 3479061 (1969-11-01), Smookler et al.
patent: 3666049 (1972-05-01), Kern et al.
patent: 3712645 (1973-01-01), Herter
patent: 3746372 (1973-07-01), Hynes et al.
patent: 3929355 (1975-12-01), Sljusar
patent: 3967829 (1976-07-01), Rogers
patent: 3977707 (1976-08-01), Oliver
patent: 4005881 (1977-02-01), Burton et al.
patent: 4071269 (1978-01-01), Halling
patent: 4139221 (1979-02-01), Shotbolt
patent: 4311313 (1982-01-01), Vedova
patent: 4427220 (1984-01-01), Decker
patent: 4443030 (1984-04-01), Hairston et al.
patent: 4618173 (1986-10-01), Dopyera et al.
patent: 4893847 (1990-01-01), Hess
patent: 5013072 (1991-05-01), Roth
patent: 5048873 (1991-09-01), Allread et al.
patent: 5088775 (1992-02-01), Corsmeier
patent: 5106129 (1992-04-01), Camacho et al.
patent: 5139276 (1992-08-01), Balsells
patent: 5167430 (1992-12-01), Bainbridge
patent: 5335947 (1994-08-01), Remsburg
patent: 6257625 (2001-07-01), Kitani et al.
patent: 6419279 (2002-07-01), Latham
Delaware Capital Formation Inc.
Dunwoody Aaron
Gubernick Franklin L.
LandOfFree
Flexible coupling for gas conduits does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Flexible coupling for gas conduits, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Flexible coupling for gas conduits will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3442669