Title:
【発明の名称】運動器具
Document Type and Number:
Japanese Patent JP3073521
Kind Code:
B2
Abstract:
PCT No. PCT/AU91/00109 Sec. 371 Date Sep. 21, 1992 Sec. 102(e) Date Sep. 21, 1992 PCT Filed Mar. 22, 1991 PCT Pub. No. WO91/14482 PCT Pub. Date Oct. 3, 1991.A hydraulic exercise apparatus having an elongated frame housing a main hydraulic cylinder and a displacement cylinder in liquid communication with the main hydraulic cylinder. The main hydraulic cylinder includes a main piston and the displacement cylinder includes a closure piston that is movable in response to movement of the main piston to maintain a liquid filled condition in the main cylinder regardless of the position of the main piston.
Inventors:
Thornton, John Charles
Application Number:
JP50561991A
Publication Date:
August 07, 2000
Filing Date:
March 22, 1991
Export Citation:
Assignee:
Thornton, John Charles
International Classes:
A63B21/008; A63B23/035; A63B21/00; (IPC1-7): A63B21/008; A63B23/035
Domestic Patent References:
| JP6351870A | ||||
| JP61502202A |
Attorney, Agent or Firm:
Minoru Yakushi (1 person outside)