| 摘要 |
PCT No. PCT/DE83/00055 Sec. 371 Date Nov. 29, 1983 Sec. 102(e) Date Nov. 29, 1983 PCT Filed Mar. 24, 1983 PCT Pub. No. WO83/03448 PCT Pub. Date Oct. 13, 1983.A device for exerting pressure comprising a piston and mating cylinder, each having a rectangular cross-section, and an elastic sleeve disposed between the end of the piston and the end of the cylinder. Means are provided to pressurize the elastic sleeve, thus exerting force on the piston, tending to move it.
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