Pipe joints or couplings – With casing – lining or protector – Insulated
Patent
1999-01-29
2000-12-12
Arola, Dave W.
Pipe joints or couplings
With casing, lining or protector
Insulated
28514823, 285368, 285915, F16L 1112
Patent
active
061587826
DESCRIPTION:
BRIEF SUMMARY
This invention relates to a pipe coupling flange for a pipe coupling assembly.
Pipe coupling assemblies are known and generally comprise a flange which is annular in configuration having a central opening for receiving a pipe coupling. The pipe coupling has a sleeve section for receiving a pipe and a flange member which is formed integrally with the sleeve. The pipe coupling is located through the central opening of the flange with the flange member engaging on one side of the flange. The flange has a plurality of holes for receiving fasteners to secure the flange and therefore the pipe coupling to a fixed member.
In order to maintain costs as low as possible, it is conventional to form the flange from steel. If the steel flange is to be used with a copper pipe coupling, it is necessary to provide a protective coating on the flange so as to avoid the possibility of electrolysis which will damage and eventually deteriorate the pipe coupling and the flange. Normally the protective coating is provided by powder coating the flange.
The powder coating technique does suffer from some disadvantages. The first disadvantage is one of cost. The second disadvantage is that the powder coating can scratch to expose the metal from which the flange is formed and electrolysis can take place if scratching of the powder coating does occur.
The object of this invention is to provide a flange which overcomes these problems.
The invention may be said to reside in a flange assembly for a pipe coupling which has a sleeve section and an integral flange portion extending radially outwardly from the sleeve section at one end of the sleeve section, the flange assembly including: opening through the flange body, the flange body having a first side and a second opposite side; a fixture; and defining an opening through the gasket member, the opening of the gasket member being smaller than the opening of the flange body and smaller than the outer diameter of said sleeve section, so that when the gasket member is located on the flange body, the inner periphery of the gasket member is located inwardly of the inner periphery of the flange body; and flange body; flange body and the opening of the gasket member, the flange portion of the coupling member abuts the gasket member so as to space the flange portion of the pipe coupling from the flange body and the inner periphery of the gasket portion is folded into the opening of the flange body so as to space the sleeve portion of the pipe coupling from the inner periphery of the flange body.
Since the flange assembly includes the gasket member which acts to space the pipe coupling from the flange body, it is not necessary to provide a protective coating on the flange assembly to avoid electrolysis. The spacing of the flange assembly from the pipe coupling by means of the gasket will serve to prevent electrolysis notwithstanding the fact that the flange assembly is not coated with a protective coating.
However, in other embodiments the flexible gasket member may be dimensioned such that the inner periphery of the gasket member is generally flush with the inner periphery of the flange body or projects slightly inwardly of the inner periphery of the flange body so as to space the pipe coupling from the flange body without the gasket being folded into the opening in the flange body.
In still other embodiments, the gasket member may be a generally rigid member having an L-shaped section in cross-section so that it basically takes permanently the profile of the folded gasket member with a portion of the gasket member being arranged adjacent the first side of the flange body and a transverse portion of the gasket member projecting into the opening through the flange body adjacent the inner periphery of the flange body.
Preferably the coupling means is adhesive and the gasket member is adhered to the first side of the flange body with the outer periphery of the gasket member being spaced inwardly of the fastening holes.
The invention may also be said to reside in a coupling assembly for a copper pipe,
REFERENCES:
patent: 2465669 (1949-03-01), Tudor
patent: 2653834 (1953-09-01), Purkhiser
patent: 4116474 (1978-09-01), Wolf
patent: 4991876 (1991-02-01), Mulvey
Stanley Gary Paul
Stanley Terrence Edmond
Arola Dave W.
Shawley Investments Pty. Ltd.
LandOfFree
Pipe coupling flange assembly does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Pipe coupling flange assembly, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pipe coupling flange assembly will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-209309