Non-metallic pressure vessel fitting
AssigneeAmtrol Inc.
InventorsMark Mazur, Joseph F. Silva, Albert R. Heilman
Life of this patent
Estimating the term…
Abstract
A pressure vessel fitting which is non-metallic, thus, eliminating the need for the soldering, brazing or welding of the fitting which is necessary when conventional metallic fittings are used and, thus, eliminating the corrosion problems often encountered when metallic fittings are used. The pressure vessel fitting has a snap together design which eliminates the loosening problems under vibration which threaded connections are subject to, unless some type of retention or locking device is used. The non-metallic pressure vessel fitting generally comprises three components, namely, an internal fitting, a grommet and a snap retainer.
Claims13
A pressure vessel fitting for use on a pressure vessel, comprising, in combination:
- (a) an internal fitting having an outer surface, an elongated body, an outward-extending flange at the end of said body, and an internal passageway in the elongated body;
- (b) a snap retainer having a one way lock lip and being slidable on said elongated body, said internal fitting has a snap lock groove into which said one way lock lip of said snap retainer can be positioned;
- and
- (c) a grommet having a back portion, an upper leg and a lower leg, said back portion of said grommet being positioned against the outer surface of said internal fitting.
A combination of a pressure vessel fitting for use on a pressure vessel, and the pressure vessel, comprising:
- (a) an internal fitting having an outer surface, an elongated body, an outward-extending flange at the end of said body, and an internal passageway in the elongated body;
- (b) a snap retainer having a one way lock lip and being slidable on said elongated body, said internal fitting has a snap lock groove into which said one way lock lip of said snap retainer can be positioned;
- (c) a grommet having a back portion, an upper leg and a lower leg, said back portion of said grommet being positioned against the outer surface of said internal fitting;
- and
- (d) a pressure vessel.
A combination of a pressure vessel fitting for use on a pressure vessel, and the pressure vessel, comprising:
- (a) an internal fitting having an outer surface, an elongated body, an outward-extending flange at the end of said body, and an internal passageway in the elongated body;
- (b) a snap retainer having a one way lock lip and being slidable on said elongated body, said internal fitting has a snap lock groove into which said one way lock lip of said snap retainer can be positioned;
- (c) a grommet having a back portion, an upper leg and a lower leg, said back portion of said grommet being positioned against the outer surface of said internal fitting;
- and
- (d) a pressure vessel having a metallic wall and having a hole in the metallic wall, said pressure vessel fitting being positioned in the hole in the metallic wall and the rim of the hole in said metallic wall being positioned between said upper leg and said lower leg of said grommet.
A combination of a pressure vessel fitting for use on a pressure vessel, and the pressure vessel, comprising:
- (a) an internal fitting having an outer surface, an elongated body, an outward-extending flange at the end of said body, and an internal passageway in the elongated body;
- (b) a snap retainer having a one way lock lip and being slidable on said elongated body, said internal fitting has a snap lock groove into which said one way lock lip of said snap retainer can be positioned;
- (c) a grommet having a back portion, an upper leg and a lower leg, said back portion of said grommet being positioned against the outer surface of said internal fitting;
- (d) a pressure vessel having a metallic wall and having a hole in the metallic wall;
- and
- (e) a liner inside of the metallic wall of the pressure vessel, said liner having a hole which corresponds with the hole in the metallic wall, said pressure vessel fitting being positioned in the hole in the metallic wall and in the hole in said liner, the rim of the hole in said liner being positioned between said upper leg and said lower leg of said grommet, and the rim of the hole in said metallic wall being positioned between said upper leg of said grommet and the bottom surface of said snap retainer.
Dependencies are inferred from the claim text.