Original document(24 pages) Authorized document(24 pages) 中文版
    There is provided exercising apparatus having an elongate frame housing a longitudinal hydraulic main cylinder, one end of which is fixedly mounted relative to a mounting end of the frame, sealing means being provided at the other end of the main cylinder through which a plunger rod is sealably slidable, handle means being associated with that end of the plunger rod which is external. There is provided a main piston at the inner end of the plunger rod to define two opposite sides of the main cylinder, the latter having adjustable aperture means interconnecting said two sides for adjustably varying the permitted flow of hydraulic liquid from one to the other upon movement of said plunger rod (15) and said main piston. There is also provided a displacement cylinder mounted on the frame and having one of its ends in liquid communication with the main cylinder, while a closure piston is mounted in sealably slidable manner in the other end of the displacement cylinder and movable in ....
Application Number
申请号
91103428 Application Date
申请日
1991.04.30
Title 名称 Exercising apparatus
Publication Number
公开号
1066196 Publication Date
公开日
1992.11.18
Approval Pub. Date Granted Pub. Date 1998.04.08
International Classification 分类号 A63B21/00
Applicant(s) Name
申请人
John Charles Thornton
Address 地址
Inventor(s) Name 发明人
Attorney & Agent 代理人 GAO HUA

  
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