US 4,770,401 A · Powered C-clamp apparatus

Abstract

This invention is a power C-clamp apparatus having a main housing assembly; a power drive assembly mounted within the main housing assembly; a gear drive assembly movable by the power drive assembly; a C-clamp assembly having a movable clamp member axially movable by the gear drive assembly; and a power control assembly operable to selectively control and energize the power drive assembly. The power drive assembly includes a main motor assembly operable through an adjustable clutch assembly to drive the gear drive assembly. The gear drive assembly includes a drive gear member engageable with a driven gear member to selectively move the movable clamp member. The C-clamp assembly includes the movable clamp member and a plurality of interchangable clamp members to cooperate with the movable clamp member. The power control assembly includes a circuit assembly having a control switch therein to drive the main motor assembly in reversible directions and a limit switch to automatically provide a control and safety feature for stopping the movable clamp member at its outer limits of movement.

Claims13

Dependent claims

A powered C-clamp apparatus adapted to clamp objects of various sizes therein and regulate the clamping force applied thereto, comprising:

(a) a main housing assembly;
(b) a power drive assembly mounted within said main housing assembly and having a main motor assembly operable to drive an output drive shaft member;
(c) a gear drive assembly connected to said drive shaft member;
(d) a C-clamp assembly having a movable clamp member engagable with said drive gear assembly to move said movable clamp member axially to clamp the object between same and an interchangable clamp member;
and
(e) said C-clamp assembly includes said interchangable clamp member which is releasably connected to said main housing assembly and said interchangable clamp member being of various sizes and shapes and cooperating with said movable clamp member to clamp an object therebetween, said power drive assembly comprising an adjustable clutch assembly between said drive shaft member of said main motor assembly and a driven shaft member and being operable to provide adjustable clamping force between said movable clamp member and said interchangable clamp member.

3 more elements

A powered C-clamp apparatus adapted to clamp an object therebetween under predetermined preselected pressure, comprising:

(a) a main housing assembly;
(b) a power drive assembly mounted within said main housing assembly having a main motor assembly operable to rotate a drive shaft member;
(c) a gear drive assembly engagable with said drive shaft member;
(d) said gear drive assembly including a drive gear member connected with said drive shaft member and engagable with a driven gear member;
(e) a C-clamp assembly having a movable clamp member and a stationary clamp member;
(f) said movable clamp member having a main clamp shaft engagable with a portion of said driven gear member so that on rotation of said driven gear member, said main clamp shaft moves axially without rotation thereof to form a clamping action on an object between said movable clamp member and said stationary clamp member, said power drive assembly comprising an adjustable clutch assembly between said drive shaft member of said main motor assembly and said drive gear member and being operable to provide adjustable clamping force between said movable clamp member and said stationary clamp member.

3 more elements

Dependencies are inferred from the claim text.

Powered C-clamp apparatus

Life of this patent

Powered C-clamp apparatus

Life of this patent

Abstract

Claims13