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1. (WO1998050723) IMPROVED SEAL SYSTEM FOR A SERVICE TEE FOR GAS DISTRIBUTION
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1998/050723 International Application No.: PCT/IB1998/000737
Publication Date: 12.11.1998 International Filing Date: 16.04.1998
Chapter 2 Demand Filed: 27.10.1998
IPC:
F16L 41/04 (2006.01) ,F16L 41/10 (2006.01)
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16
ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
L
PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
41
Branching pipes; Joining pipes to walls
04
Tapping pipe walls, i.e. making connections through the walls of pipes while they are carrying fluids; Fittings therefor
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16
ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
L
PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
41
Branching pipes; Joining pipes to walls
08
Joining pipes to walls or pipes, the joined pipe axis being perpendicular to the plane of a wall or to the axis of another pipe
10
the extremity of the pipe being screwed into the wall
Applicants:
TDW DELAWARE INC. [US/US]; Suite 780 1100 Market Street Wilmington, DE 19801, US
Inventors:
PACELLA, Francesco; BE
Agent:
JOHNSON, Paul, H.; Head, Johnson & Kachigian 228 West 17th Place Tulsa, OK 74119, US
Priority Data:
60/045,56105.05.1997US
Title (EN) IMPROVED SEAL SYSTEM FOR A SERVICE TEE FOR GAS DISTRIBUTION
(FR) SYSTEME DE JOINT AMELIORE POUR RACCORDEMENT EN T FILETE DESTINE A LA DISTRIBUTION DE GAZ
Abstract:
(EN) A system for providing communication with the interior of a pipe having a threaded opening in the pipe wall including a tubular member having external threads (60) engageable with the pipe threaded opening with a toroidal elastomeric seal (10), a tubular thrust bushing (14) and a tubular casing (16) slidably positioned on the tubular member, the casing extending telescopically over at least a major portion of the elastomeric seal and a nut (18) threadably received on the tubular member and engageable first with the thrust bushing and then with the casing, the nut when threadably advanced towards the pipe wall serving to displace the thrust bushing to force the elastomeric seal into engagement with the pipe in the area thereof surrounding the threaded opening and displaces the casing to achieve effective sealing contact with the pipe wall surrounding the threaded opening, the casing serving to confine and direct the elastomeric seal against the exterior of the tubular member.
(FR) L'invention concerne un système destiné à permettre la communication avec l'intérieur d'un conduit présentant une ouverture filetée dans la paroi du conduit et comprenant un élément tubulaire comportant des filets extérieurs (60) pouvant venir en contact avec l'ouverture filetée du conduit au moyen d'un joint élastomère toroidal (10), une bague (14) de butée tubulaire et une enveloppe tubulaire (16) positionnées de manière coulissante sur l'élément tubulaire, l'enveloppe s'étendant de manière télescopique sur au moins la plus grande partie du joint élastomère et un écrou (18) vissé sur l'élément tubulaire et venant en contact tout dabord avec la bague de butée et ensuite avec l'enveloppe, l'écrou, lorsqu'on le fait avancer en le vissant vers la paroi du conduit, servant à déplacer la bague de butée afin de forcer le joint élastomère à venir au contact du conduit dans sa partie entourant l'ouverture filetée, et à déplacer l'enveloppe afin d'obtenir un contact étanche efficace avec la paroi du conduit entourant l'ouverture filetée, l'enveloppe servant à confiner et à orienter le joint élastomère contre l'extérieur de l'élément tubulaire.
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Designated States: European Patent Office (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
EP0980487