Expansible chamber devices – Rectilinearly moving working member and coaxial or parallel... – Element extends through working member portion
Patent
1995-02-02
1997-01-07
Ryznic, John E.
Expansible chamber devices
Rectilinearly moving working member and coaxial or parallel...
Element extends through working member portion
92 88, 92136, 74 8915, 74459, F01B 300, F01B 2900, F16H 2702
Patent
active
055905803
ABSTRACT:
A load positioning apparatus comprises a rodless cylinder which comprises a piston and a load-mounting table connected together by a coupling device, a feed screw turned and driven by an electric motor, and a pressurized fluid control and supply device. The coupling device mechanically and directly connects the piston and table. The feed screw disposed to pass through the piston in the rodless cylinder is connected to the piston with a screw coupling mechanism.
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patent: 4669359 (1987-06-01), Shiba
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patent: 4811618 (1989-03-01), Takayama
patent: 4876906 (1989-10-01), Jones
patent: 5303549 (1994-04-01), Berchtold et al.
Ryznic John E.
SMC Corporation
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