Back to results
US 4,289,334 AGranted
Socket connection for an enamelled vessel
AssigneeS. W. Hart & Co. Pty. Ltd.
InventorHarry J. Riley
Life of this patent
Estimating the term…
Abstract
The present invention relates to a steel socket connection for an internally enamelled steel vessel in which presentation of bare ferrous metal to the contents of the vessel is reduced to a minimum. The socket comprises a parallel portion adjacent the vessel, an internally threaded portion remote from the vessel and a seat located between the parallel and threaded portions, said steel socket being internally enamelled except for the internally threaded portion thereof.
Claims3
An internally enamelled steel vessel having a steel socket welded thereto, wherein said steel socket comprises
- (a) a parallel portion adjacent said vessel;
- (b) an internally threaded portion remote from said vessel;
- and
- (c) a seat located between said parallel and threaded portions;
- (d) said steel socket being internally enamelled except for said internally threaded portion thereof;
- (e) a further, non-ferrous socket having an externally threaded portion having a thread matching the internal thread of said steel socket, and an external O-ring groove containing an O-ring seal, said O-ring seal being sealingly compressed against said seat in the said steel socket, said O-ring groove being located forwardly of said externally threaded portion of said non-ferrous socket so that the internal enamel of said steel socket extends outwardly of said O-ring groove and the seal formed by said O-ring seal.
3 more elements
Dependencies are inferred from the claim text.