Hydraulic and earth engineering – Subterranean or submarine pipe or cable laying – retrieving,... – Supporting – anchoring – or positioning of pipe or cable
Reexamination Certificate
2006-02-28
2006-02-28
Lagman, Frederick L. (Department: 3673)
Hydraulic and earth engineering
Subterranean or submarine pipe or cable laying, retrieving,...
Supporting, anchoring, or positioning of pipe or cable
C269S902000
Reexamination Certificate
active
07004682
ABSTRACT:
Articulated pipe jack clamps include a pair of laterally opposed L-shaped legs hinged at an upper end to a central threaded collar, each having an elongate upper portion and a shorter inwardly turned bottom portion engageable with the underside of a wide V-shaped cradle of a pipe jack. A threaded stem engaged in the collar has a handle at its top end and an inverted V-shaped head connected at its bottom end by a ball-and-socket connection. The clamp is placed vertically downward over a work piece supported in the pipe jack cradle such that its V-shaped head is engaged on the top of the work piece, and the bottom portion of each leg is disposed beneath the sides of the cradle, then the head is screwed down to raise and engage the bottom portion of the legs on the underside of the cradle to clamp the work piece in the pipe jack.
REFERENCES:
patent: 2108077 (1938-02-01), Robinson
patent: 2371831 (1945-03-01), Leming
patent: 2455024 (1948-11-01), Schneider
patent: 4139189 (1979-02-01), Weitrzyk
patent: 4195828 (1980-04-01), Peterson
patent: 4268189 (1981-05-01), Good
patent: 4524959 (1985-06-01), Kubo
patent: 4981395 (1991-01-01), Datin et al.
patent: 5042958 (1991-08-01), Stenersen
patent: 5135209 (1992-08-01), Penny
patent: 5553975 (1996-09-01), Elkins
patent: 5863035 (1999-01-01), Howell
patent: 6349869 (2002-02-01), McBee
Lagman Frederick L.
Roddy Kenneth A.
LandOfFree
Articulated pipe jack clamp does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Articulated pipe jack clamp, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Articulated pipe jack clamp will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3689890