SCREWDRIVER

• US 3,604,486 A
• Filed: 03/13/1969
• Issued: 09/14/1971
• Est. Priority Date: 03/13/1969
• Status: Expired due to Term

• Current Assignee: Roger D. Henry
• Original Assignee: Roger D. Henry
• Inventors: Henry, Roger D.
• Primary Examiner(s): Custer, Jr., Granville Y.
• Application Number:
  US04/806,794
• Time in Patent Office: 915 Days
• Field of Search: 145/50
• US Class Current: 81/450
• CPC Class Codes: B25B 13/481 for operating in areas having limited access
• CPC Class Codes: B25B 15/02 operated by rotating the handle

Abstract

A screwdriver providing a rigid torsional connection between the handle and bit including means for varying the relative positions of the main centerline of the screwdriver and the centerline of the bit. The screwdriver includes a handle, a central shaft, a movable member, a universal connecting means, a bit-receiving chuck, and a bit.

Claims

1. A tool comprising, a body member with a main centerline, a bit member with a main centerline, said bit member connected to said body member, a single rigid torsional connecting means connected between said body member and said bit member, and a movable member slidable along said body member into and out of engagement with said bit member for varying the angular relationship between the main centerline of said body member and said bit member.

2. A tool as set forth in claim 1 wherein, said movable member is a tabular member movable longitudinally over said body member.

3. A tool as set forth in claim 3 wherein, said moveable member is moveably connected to said body member to vary the distance between the adjacent end of said moveable member and an adjacent end of said bit to vary the angle between the main centerline of the said body member and said bit.

4. A tool comprising:

a body member including a shaft with a main centerline;

a bit with a main centerline connected to said shaft, a rigid torsional connecting means connected between one end of said shaft and said bit, said rigid torsional connecting means includes a universal join;

a tubular moveable member for varying the angular relationship between the main centerlines of said shaft and said bit, said tubular moveable member moveable longitudinally over said shaft, said tubular moveable member moveably connected to said shaft to vary the distance between the adjacent end of said tubular moveable member and the adjacent end of said bit.

5. A tool as set forth in claim 4 including, a pin connected to said shaft, and a slot in said movable member to guide the movement of said movable member with said pin in said slot.

6. A tool as set forth in claim 5 wherein, the edge of said chuck rotates on the rim of said movable means when said centerline of the handle is at an angle less than 180* to the centerline of said bit.

7. A tool as set forth in claim 3 wherein, said adjacent end of said tubular moveable member rotates about the adjacent end of said bit member when the main centerline of the body member of the tool is held at an angle other than 180* to the main centerline of the bit member.