The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 01, 2001
Filed:
Nov. 18, 1999
Brian James Kibble, Cleveland, GB;
Ian Mervyn Craig, Stockton-on-Tees, GB;
VAI Industries (UK) Limited, Stockton-on-Tees, GB;
Abstract
There is disclosed a quick change plug and socket blow lance for use in steel conversion. To expedite exchange of an exhausted lance body (,) the lance body (,) has a plug (,) formed at an upper end adapted for reception in a socket (,) formed in a head (,). The socket and head are provided with various sealing surfaces whereby coolant water and oxygen for the conversion process can reliably be delivered to passages in the lance body (,). A locking mechanism is provided whereby the plug (,) can quickly be secured into the head socket (,) and separated after use. The locking mechanism consists of a plurality of circumferentially spaced projections (,) formed on a rotatable head ring (,) mounted at the mount of the socket (,). A lance body ring is secured to the lance body immediately below the plug (,) and provides a plurality of circumferentially spaced flange segments (,) separated by gaps (,) through which the projections can pass as the plug (,) is inserted axially into the socket (,). When located the head ring (,) is rotatable to engage the projections with the flange segments and so on prevent separation of the plug from the socket during use.