Actuator means to accomplish a linear movement

Details Actuator means to accomplish a linear movement Actuator means to accomplish a linear movement

2006-05-02

2009-06-23

Nguyen, Jimmy T (Department: 3725)

Presses

Concurrent pressing and conveying

Roll type

C100S170000, C100S269010, C092S143000, C092S183000, C092S169100

Reexamination Certificate

active

07549370

ABSTRACT:
A regulating unit for accomplishing a linear movement includes a cylindrical frame part (1) having a cylinder part (11) and cylinder head (12), which define a piston space (131, 132), and a piston unit (2) to be moved by a pressurized medium in the piston space. The height of a first space (131), in which a piston part (22) is moveable, is bigger than the height of a piston part, the cross section area is bigger than a cross section area of a piston rod. A cross section area of a second space (132) is smaller that the cross section area of the piston part. Pressurized medium may be fed into a cavity space (15), which is between the facing surfaces of the piston part and the piston space, for moving the piston unit towards the cylinder head (12) or vice versa.

REFERENCES:
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patent: 4924772 (1990-05-01), Schlunke et al.
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patent: 5007276 (1991-04-01), Kadis et al.
patent: 5806415 (1998-09-01), Lipponen et al.
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patent: 0819638 (1998-01-01), None
patent: 1316733 (2003-06-01), None
patent: 1371436 (1974-10-01), None
patent: 55-123003 (1980-09-01), None
patent: 565658 (2003-12-01), None
patent: 2006/123014 (2006-11-01), None
Search Report issued in PCT/FI2006/050175.
English translation of abstract in EP 0819638.
English translation of abstract in JP 55-123003.
English translation of abstract in TW 565658.

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