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:
Dec. 10, 1985
Filed:
Sep. 19, 1983
Hoogovens Groep B.V., Ijmuiden, NL;
Abstract
A vertical spigot joint for sealing the space between the socket and the end of a pipe inserted in the socket has an aluminium cord sealing the space and a filler mixture. The filler mixture comprises aluminium cement, vermiculite grains and a plastics material which retains its plastic properties in use. A sleeve of a glass fibre cloth coated with protective layers covers the joint and is secured to the pipe end and socket by silicone putty and by clamping strips. A thermally insulating refractory ceramic felt is provided between the pipe end and the filler material. The use of this filler mixture, together with the provision of the sleeve enables a joint to be produced which is gas-tight and absorbs relative movement of the pipe end and socket due to the media in the pipe or due to thermal expansion and contraction.