Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Reexamination Certificate
2007-07-03
2007-07-03
Osele, Mark A. (Department: 1734)
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
C156S304100, C156S304500, C138S155000, C138S157000
Reexamination Certificate
active
10416747
ABSTRACT:
A pipe construction system which utilizes a multiplicity of arcuate pipe segments11, 12to form a pipe section10and which sections are assembled together to form a length of pipe. Each segment11, 12has two longitudinal edges13of increased radial thickness and having a groove14formed in the circumferential direction whereby an interlocking and sealing member15may be located in the aligned grooves14of two adjacent segments11, 12.One end of a pipe section10assembled from the segments defines a socket22for receiving a spigot23defined at the other end of a like section. The spigot end of each segment has a pocket25formed along said edge13but within the thickness of the major area of the segment, which pocket25mates with a corresponding pocket25of an adjacent segment whereby sealant may be disposed in the mating pockets.
REFERENCES:
patent: 1052198 (1913-02-01), Wyre
patent: 1393329 (1921-10-01), Trowbridge
patent: 1846550 (1932-02-01), Gottwald
patent: 2005699 (1935-06-01), Gottwald
patent: 4967800 (1990-11-01), Heilmayr et al.
patent: 6089279 (2000-07-01), Clarke et al.
Skinner Lee M
Talwar Afay
Towers Graham F
Osele Mark A.
Renner Kenner Greive Bobak Taylor & Weber
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