Coupler apparatus for use with angled post-tension cables in...

Details Coupler apparatus for use with angled post-tension cables in... Coupler apparatus for use with angled post-tension cables in...

2005-04-05

2005-04-05

Bochna, David (Department: 3679)

Pipe joints or couplings

Flexible joint, rigid members

Concrete, clay, or masonry pipe

C052S220800, C052S223700

Reexamination Certificate

active

06874821

ABSTRACT:
A coupler apparatus for use with precast concrete segmental construction having a first duct, a first coupler member extending over and around the first duct, a second duct, a second coupler member extending over and around the second duct and a gasket received at the ends of the first and second coupler members so as to prevent liquid from passing between the coupler members into an interior of either of the ducts. The ducts extend at a non-transverse acute angle with respect to the ends of the coupler members. Heat shrink seals are affixed to the opposite ends of the coupler member so as to secure the coupler members to the ducts in liquid-tight relationship. The ends of the coupler member have generally V-shaped grooves facing each other. The gasket is received in compressive relationship within the V-shaped grooves.

REFERENCES:
patent: 1020839 (1912-03-01), Niesen
patent: 3897619 (1975-08-01), Thivans
patent: 5064226 (1991-11-01), Klas
patent: 5197157 (1993-03-01), De La Fuente
patent: 5215254 (1993-06-01), Haruch
patent: 5231936 (1993-08-01), Sauvagiot
patent: 5291704 (1994-03-01), Savorani
patent: 5474335 (1995-12-01), Sorkin
patent: 5775849 (1998-07-01), Sorkin
patent: D400670 (1998-11-01), Sorkin
patent: 5954373 (1999-09-01), Sorkin
patent: 6389764 (2002-05-01), Stubler et al.

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