Appeal No. 96-4197
Application No. 08/425,261
a measuring end and a distal end, the insertion rod being
axially aligned for insertion of the measuring end into the
pipeline through said extending mounting member, the
stuffing assembly, and the blocking valve, wherein the
measuring end is capable of supporting a measuring
mechanism;
(c) a laterally extending yoke connected with the
distal end of the insertion rod having two opposing ends
aligned with the opposing ends of said mounting member;
(d) a pair of parallel hydraulic cylinders, each
hydraulic cylinder having an elongate cylinder body
extending toward the pipeline adjacent to and aligned at the
side of the stuffing assembly and blocking valve, a piston
movably located in each of said cylinders, and a piston rod
extending from said piston for connection to relatively move
said yoke with respect to said mounting member wherein the
pipeline insertion apparatus extends from the pipeline
parallel to the insertion rod, and wherein the application
of pressurized fluid to the piston moves the piston rod to
move said yoke towards or away from the pipeline to insert
or retract the measuring end of the insertion rod into the
pipeline wherein the pair of hydraulic cylinders operate
jointly in response to a common pressurized fluid system to
provide movement of the rod without bending from said pair
of cylinders to the side of the stuffing assembly.
The Examiner relies on the following references:
Welker 4,387,592 Jun. 14,
1983
Kamrat 5,009,113 Apr. 23,
1991
Claims 19 through 29 stand rejected under 35 U.S.C.
§ 103 as being unpatentable over Kamrat in view of Welker.
Rather than reiterate the arguments of Appellant and the
4
Page: Previous 1 2 3 4 5 6 7 8 9 10 11 12 13 Next
Last modified: November 3, 2007