Pipe joints or couplings – With assembly means or feature – Particular tool-engaging means or with tool
Patent
1988-03-28
1990-01-02
Taylor, Dennis L.
Pipe joints or couplings
With assembly means or feature
Particular tool-engaging means or with tool
285192, 285196, 285420, F16L 502, F16L 4108
Patent
active
048908630
ABSTRACT:
A metallic clamping band of channel-shaped cross-section is arranged in a ring-shaped manner and has a discontinuity so as to define two adjacent free ends thereof. A curved channel-shaped insert has one of its ends welded to one end of said clamping band while the other of its ends is free to slidably engage the remaining end of the clamping band. The remaining end of the clamping band is provided with a plurality of openings arranged at spaced intervals along each of the sidewalls of the channel shaped member to define a plurality of pairs of openings. A locking pin is insertable into one of said pairs of openings to engage the free end of the insert portion and thereby maintain the clamping band in the expanded and locked position. The free end of the insert preferably has an extending tongue adapted to be positioned between the locking pin and the base of the clamping band when in the locked position. A pair of solid members are welded respectively to the insert and the clamping band to receive an expander for expanding the clamping band to the desired diameter. The holes may be replaced by slots having offset portions for receiving and seating the locking pin. The locking openings in the sidewalls may be replaced by a set screw which lockingly engages the insert to hold the clamping band in the locked position.
REFERENCES:
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patent: 3614139 (1971-10-01), Harrison
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patent: 4215868 (1980-08-01), Skinner et al.
patent: 4288892 (1981-09-01), Mardirossian
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patent: 4478437 (1984-10-01), Skinner
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patent: 4585091 (1986-04-01), Budd
patent: 4711455 (1987-12-01), Ditcher et al.
Kelly James A.
Westhoff James
A-Lok Products, Inc.
Olsen Arlen L.
Taylor Dennis L.
Weinstein Louis
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