(under subclass 452) Devices including clamp-actuating means which comprises a force-responsive (i.e., resilient or slipping) portion forming part of the force-transmitting train which moves the clamp toward its applied condition, such portion serving to limit the force which can be exerted on and by the movable clamp jaw.
(1) Note. This subclass includes disclosures of fluid actuated clamps which have yieldable drives. Example: compressed air drive, or hydraulic with relief valve). There must be force-limiting structure present.