Work holders – With fluid means – Cylinder-piston means in series with additional positioning...
Patent
1992-02-11
1993-04-13
Swann, J. J.
Work holders
With fluid means
Cylinder-piston means in series with additional positioning...
269 24, 269 34, 269 35, 269156, B23Q 308
Patent
active
052015017
ABSTRACT:
A unit is provided for grasping and clamping generally circular shaped parts such as lenses, comprising a central body on which three grasping and clamping elements are mounted adapted to bear tangentially on said part at three points or regions of tangential contact forming, pairwise, angles greater than 90.degree., one of the grasping and clamping elements being arranged to lie on the axis of said central body at one end of a movable central push rod, the other two said elements being arranged symmetrically with respect to said axis at the distal end of two levers, the push rod being urged by at least one clamping spring in the axial clamping direction, and the other two elements being urged to rotate in the direction of clamping by at least one lever-action producing spring, release of clamping being obtained by application of fluid pressure to a piston adapted to operate in opposition to said clamping spring.
REFERENCES:
patent: 2160378 (1939-05-01), Balsiger
patent: 2914026 (1959-11-01), Greenwood
patent: 3595557 (1971-07-01), Daniels
patent: 4294444 (1981-10-01), Horton
patent: 4484775 (1984-11-01), Norkus
patent: 4877228 (1989-10-01), Ripert
Essilor International "Compagnie Generale d'Optique"
Swann J. J.
LandOfFree
Unit for grasping and clamping circular objects does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Unit for grasping and clamping circular objects, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Unit for grasping and clamping circular objects will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1149967