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US 5,538,294 AGranted
Corrugated flexible metal piping assembly
AssigneeTru-Flex Metal Hose Corporation
InventorR. Winfield Thomas
Life of this patent
Estimating the term…
Abstract
A flexible metal piping assembly includes a body with corrugations having spiral (helical) or annular configurations. End connections are mounted on the body ends, which can be flanged or male-threaded. A layer of insulating or sealing material can be applied over the body. The end connections can be male-threaded or female-threaded. A bellows configuration is provided with annular corrugations which taper in proximity to the body ends.
Claims14
A flexible metal piping assembly, which includes:
- a) body having first and second ends;
- b) said body being corrugated
- c) said body having a longitudinally-extending weld seam extending generally perpendicularly with respect to said corrugations;
- d) said corrugations tapering towards said body ends and having decreasing diameters towards said ends;
- and
- e) threaded end connection means associated with at least one of said first and second ends.
3 more elements
A flexible metal piping assembly, which comprises:
- (a) a body having first and second ends;
- (b) said body having multiple, annular corrugations positioned in spaced, parallel relationship;
- (c) said body having a longitudinally-extending weld seam extending generally perpendicularly with respect to said corrugations;
- (d) said corrugations tapering towards said body ends and having decreasing diameters towards said ends;
- (e) at least one of said body ends having a flange thereon;
- and
- (f) an end connector including:
- (1) a smooth-bore receiver proximate portion receiving said one body end;
- (2) a threaded distal portion communicating with said proximate portion;
- and
- (3) a frusto-conical shoulder engaging said flange in a sealing relationship therewith.
8 more elements
A flexible metal piping assembly, which includes:
- (a) a body having a helical corrugation and opposite ends;
- (b) said body converging towards the ends thereof;
- (c) said corrugations having decreasing diameters towards said body ends as compared to the diameter thereof between said body ends;
- (d) a sealing material applied to said body and extending between the ends thereof in covering relation over said body corrugations;
- (e) said sealing material conforming generally to said corrugations in proximity to said body ends;
- and
- (f) an end connector with a female-threaded receiver receiving one of said body ends and the covering material thereon.
4 more elements
Dependencies are inferred from the claim text.