Expansible chamber devices – Rectilinearly moving working member and coaxial or parallel... – Element extends through working member portion
Patent
1990-01-17
1991-04-09
Kwon, John T.
Expansible chamber devices
Rectilinearly moving working member and coaxial or parallel...
Element extends through working member portion
92 31, 92165R, 74 99A, F01B 300
Patent
active
050054686
ABSTRACT:
The swing clamping device consists of a cylinder (2) provided with fluid medium connections with a piston (5) that can be advanced and retracted and a piston rod (1) to whose free end a clamping arm (17) is attached. The piston rod swing guide is designed in the form of a swing guide sleeve (3) with a swing guide slot that runs along its entire length and is axially fixed in the cylinder interior on the piston rod side leaving an admission area of the piston (1) free on the piston rod end, and there is a swing transmission element between the guide sleeve and the piston rod (1). This device is designed according to this invention such that the cylinder (2) is designed in the shape of a pot with its opening facing toward the clamping arm and is guided precisely in it with its upper end in the area of the open end of cylinder (2) and at least in the area of its lower end (3') by the inside wall (2") of the cylinder, so it can be inserted together with the piston rod (1) and respective pistons (5) as a swing guide sleeve (3) that forms one unit. The swing guide slot in the sleeve (3) is designed in the form of a slot (7) that is closed at both ends and passes through wall (3") of sleeve (3). The free end (8) of a guide pin (9) that is secured so it can be inserted into piston rod (1) is engaged in this slot (7).
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patent: 4359932 (1982-11-01), Chilpers
patent: 4504038 (1985-03-01), King
Delaware Capital Formation Inc.
Denion Thomas
Forster Lloyd M.
Kwon John T.
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