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Class Information
Number: 83/463
Name: Cutting > With work immobilizer > Means to clamp work > Self-locking drive means
Description: Device wherein the actuating transmission becomes frictionally held in position upon cessation of the actuating power, by the characteristics of the transmission proper.

Patents under this class:

Patent Number Title Of Patent Date Issued
6990881 Workpiece holding-down structure for blind cutting machine Jan. 31, 2006
6668695 Clamping system Dec. 30, 2003
5740710 Device for cutting sheets of material Apr. 21, 1998
4892020 Workpiece support system for cutting machine Jan. 9, 1990
4875274 Method of cutting metal stud and bending and securing same to form angel member Oct. 24, 1989
4815350 Circular saw machine Mar. 28, 1989
4787283 Metal stud and channel cornering die Nov. 29, 1988
4519280 Miter board and saw guide May. 28, 1985
4283977 Motorized miter chop saw with work-piece clamp Aug. 18, 1981
4267756 Holddown for power shear May. 19, 1981
4082026 Portable press Apr. 4, 1978
4055097 Automatic cutter for armored cable Oct. 25, 1977

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