公开(公告)号：AU5923298A

公开(公告)日：1998-08-07

申请号：AU5923298

申请日：1998-01-16

Applicant: APPLIED POWER INC

Inventor： PRINCE GEORGE T ,  GORDON WILLIAM J

IPC: E04G21/12

Abstract: A concrete reinforcement cable tensioner (10) has a cable gripper (60) with its base end (87) mounted to a flange (18) which is secured to the tensioning cylinders (12, 14) by abutting a shoulder on the outside of the cylinders (12, 14). An auxiliary retraction spring (94) is contained in a tubular handle (86) which is fixed to the flange (18) and the spring (94) acts on a rod (92) which extends beyond the handle (86) and has its distal end fixed to a yoke (104) which connects the piston rods (30) of the cylinders (12, 14) and on which a seat (108) for bearing against the concrete slab is mounted. The base ends (24) of the tensioning cylinders (12, 14) are hydraulically connected by a manifold (16) which is common to the cylinders (12, 14) and binds the base ends (24) of the cylinders (12, 14) together.

公开(公告)号：AU6097894A

公开(公告)日：1994-09-26

申请号：AU6097894

申请日：1994-01-25

Applicant: APPLIED POWER INC

Inventor： PRINCE GEORGE T ,  FISHER MARK J

IPC: F04B1/04 ,  F04B1/047 ,  F04B1/053 ,  F04B5/00 ,  F04B5/02 ,  F04B11/00 ,  F04B49/24 ,  F04B49/00

Abstract: A two stage pump has coaxial first and second stage reciprocating pumps with the second stage piston reciprocably driven by the first stage piston. Multiple sets of first and second stage pumps are provided, and the second stage pistons can be returned by supercharge pressure, a loose connection between the first and second stage pistons, or a spring. An accumulator which is charged on a compression stroke and discharged on an intake stroke may also be provided in communication with a pumping chamber to improve the efficiency of a pump.

公开(公告)号：CA2157906A1

公开(公告)日：1994-09-15

申请号：CA2157906

申请日：1994-01-25

Applicant: APPLIED POWER INC

Inventor： FISHER MARK J ,  PRINCE GEORGE T

IPC: F04B1/04 ,  F04B1/047 ,  F04B1/053 ,  F04B5/00 ,  F04B5/02 ,  F04B11/00 ,  F04B49/24 ,  F04B49/00

Abstract: A two stage pump (10) has coaxial first (22) and second (24) stage reciprocating pumps with the second stage piston (76) reciprocably driven by the first stage piston (26). Multiple sets of first (22) and second (24) stage pumps are provided and the second stage pistons (76) can be returned by supercharge pressure, a loose connection between the first (26) and second (76) stage pistons, or a spring. An accumulator (402) which is charged on a compression stroke and discharges on an intake stroke may also be provided in communication with a pumping chamber (22) to improve the efficiency of a pump (10).

公开(公告)号：AU685424B2

公开(公告)日：1998-01-22

申请号：AU6097894

申请日：1994-01-25

Applicant: APPLIED POWER INC

Inventor： PRINCE GEORGE T ,  FISHER MARK J

IPC: F04B1/04 ,  F04B1/047 ,  F04B1/053 ,  F04B5/00 ,  F04B5/02 ,  F04B11/00 ,  F04B49/24 ,  F04B49/00

Abstract: A two stage pump has coaxial first and second stage reciprocating pumps with the second stage piston reciprocably driven by the first stage piston. Multiple sets of first and second stage pumps are provided, and the second stage pistons can be returned by supercharge pressure, a loose connection between the first and second stage pistons, or a spring. An accumulator which is charged on a compression stroke and discharged on an intake stroke may also be provided in communication with a pumping chamber to improve the efficiency of a pump.

公开(公告)号：WO9420753A2

公开(公告)日：1994-09-15

申请号：PCT/US9401001

申请日：1994-01-25

Applicant: APPLIED POWER INC

Inventor： PRINCE GEORGE T ,  FISHER MARK J

IPC: F04B1/04 ,  F04B1/047 ,  F04B1/053 ,  F04B5/00 ,  F04B5/02 ,  F04B11/00 ,  F04B49/24 ,  F04B49/00

CPC classification number: F04B1/053 ,  F04B5/00 ,  F04B11/0033 ,  F04B49/24 ,  F04B2205/04

Abstract: A two stage pump (10) has coaxial first (22) and second (24) stage reciprocating pumps with the second stage piston (76) reciprocably driven by the first stage piston (26). Multiple sets of first (22) and second (24) stage pumps are provided and the second stage pistons (76) can be returned by supercharge pressure, a loose connection between the first (26) and second (76) stage pistons, or a spring. An accumulator (402) which is charged on a compression stroke and discharged on an intake stroke may also be provided in communication with a pumping chamber (22) to improve the efficiency of a pump (10).

Abstract translation: 两级泵（10）具有同轴的第一（22）和第二（24）级往复泵，其中第二级活塞（76）由第一级活塞（26）可往复驱动。 提供多组第一（22）和第二（24）级泵，并且第二级活塞（76）可以通过增压压力，第一（26）和第二（76）级活塞之间的松动连接，或 弹簧。 在压缩行程上被填充并在进气冲程中排出的蓄能器（402）也可以设置成与泵送室（22）连通，以提高泵（10）的效率。