Tobacco – Cigar or cigarette making – Including cooperating surfaces to induce rolling
Patent
1995-07-25
1998-04-21
Walton, George L.
Tobacco
Cigar or cigarette making
Including cooperating surfaces to induce rolling
1510405, 1510409, 292815, 29464, 137242, 137318, 138 94, 138 97, 228 491, 269 41, F16K 4300, F16L 5510
Patent
active
057408297
ABSTRACT:
An outlet opening (14) to a branch line 40 in a pipeline 10 is sealed without interrupting the flow of gas in the pipeline 10 by cutting an access opening 60 in the wall 62 of the pipeline 10 opposite the branch line 40. A seal 100 is inserted through the access opening 60 using a sub-assembly 70, which consists of a flange 74 having a screw-threaded through aperture, an externally screw-threaded tube 82 received in the aperture and a rod 80 carrying a handle 72 at one end and the seal 100 at the other. The seal 100 has a sealing face 102 which is part-cylindrical in shape and is held in the correct orientation by the handle 72 while the tube 82 is screwed home. When work on the branch line 40 has been completed a temporary seal 160 is installed in the joint-flange 16 which is welded to the pipeline 10 allowing removal of the isolation valve 64 which is replaced by a blanking flange fitted to the joint-flange 16.
REFERENCES:
patent: 2188607 (1940-01-01), Larry et al.
patent: 2763282 (1956-09-01), Reedy et al.
patent: 2990731 (1961-07-01), Merrill et al.
patent: 3626576 (1971-12-01), Ray
patent: 3669139 (1972-06-01), Gajdos
patent: 3743566 (1973-07-01), Louthan et al.
patent: 3799182 (1974-03-01), Long
patent: 3863667 (1975-02-01), Ward
patent: 3867964 (1975-02-01), Gardner
patent: 3948282 (1976-04-01), Yano
patent: 3966528 (1976-06-01), Christie
patent: 4092205 (1978-05-01), Mieszczak
patent: 4100929 (1978-07-01), Harrison
patent: 4127141 (1978-11-01), Ledonne et al.
patent: 4155372 (1979-05-01), Mills et al.
patent: 4282894 (1981-08-01), Mills et al.
patent: 4338712 (1982-07-01), Dearman
patent: 4445677 (1984-05-01), Hansen et al.
patent: 4533424 (1985-08-01), McElroy
patent: 4542892 (1985-09-01), Goldner
patent: 4552170 (1985-11-01), Margrave
patent: 4611743 (1986-09-01), Williams
patent: 4719936 (1988-01-01), Tsubakimoto et al.
patent: 4828767 (1989-05-01), Smirnoff
patent: 5076311 (1991-12-01), Marschke
patent: 5152310 (1992-10-01), O'Bryon
Jacobs Michael
Johnson Leigh Martin
British Gas plc
Walton George L.
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