US 8,998,269 B2 · Vacuum insulated fitting enclosure

Abstract

An enclosure for providing a fluid conduit and high-pressure fitting of a fluid transfer hose with a highly-insulative vacuum jacket and for providing convenient access to the fitting. The enclosure includes an interface collar mounted to an end of the transfer hose with the fluid conduit and the fitting extending therethrough, a bellows fastened at a first end to an interior of the interface collar and fastened at a second end to a pass-through collar, a tubular slide cuff mounted to the pass-through collar and extending over the bellows and the interface collar, and a connecting nut mounted to the pass-through collar. The slide cuff is axially displacable relative to the interface collar between a retracted position, wherein the connecting nut, the pass-through collar, and the bellows are refracted to expose and provide access to the fitting, and an extended position, wherein the fitting is entirely covered by the enclosure.

Claims20

Dependent claims

A vacuum enclosure for coupling a cryogenic fluid handling hose to a cryogenic fluid holding structure, comprising:

an interface collar adapted to be mounted to an end of the cryogenic fluid handling hose;
a bellows coupled at a first end to the interface collar and coupled at a second end to a pass-through collar;
a slide cuff coupled to the pass-through collar and extending over at least a portion of the bellows and the interface collar, wherein the slide cuff is axially displaceable relative to the interface collar to facilitate movement of the slide cuff between a retracted position and an extended position;
and
a connecting nut coupled to the pass-through collar and longitudinally separated from the slide cuff by a thrust bushing disposed longitudinally intermediate the connecting nut and the slide cuff, the connecting nut configured to releasably engage a portion of the cryogenic fluid holding structure;
wherein in the extended position the pass-through collar and the bellows form a sealed conduit between the cryogenic fluid handling hose and the cryogenic fluid holding structure.

3 more elements

A vacuum enclosure for coupling a cryogenic fluid handling hose to a cryogenic fluid holding structure, comprising:

a bellows adapted to be coupled at a first end to an end of the cryogenic fluid handling hose and coupled at a second end to a pass-through collar, wherein the bellows and pass through collar can be extended and retracted relative to the fluid handling hose between an extended position and a retracted position;
a connecting nut coupled to the pass-through collar, the connecting nut configured to releasably engage a portion of the cryogenic fluid holding structure;
a retaining collar mounted to an exterior of the pass-through collar for minimizing axial displacement of the connecting nut relative to the pass-through collar, the retaining collar longitudinally separated from a flange of the connecting nut by a thrust bushing disposed longitudinally intermediate the retaining collar and the flange;
and
wherein in the extended position the pass-through collar and the bellows form a sealed conduit between the cryogenic fluid handling hose and the cryogenic fluid holding structure.

2 more elements

Dependencies are inferred from the claim text.

Vacuum insulated fitting enclosure

Life of this patent

Vacuum insulated fitting enclosure

Life of this patent

Abstract

Claims20