Invention Grant
- Patent Title: Apparatus for applying leverage force to a hand drill
- Patent Title (中): 用于向手钻施加杠杆力的装置
-
Application No.: US12569035Application Date: 2009-09-29
-
Publication No.: US08596936B2Publication Date: 2013-12-03
- Inventor: George McKenzie
- Applicant: George McKenzie
- Agency: Davis & Bujold, PLLC
- Agent Michael J. Bujold
- Priority: CA2640498 20080930
- Main IPC: B23B45/14
- IPC: B23B45/14

Abstract:
An apparatus for applying a leverage force to a hand drill has a rigid elongated support having a first end and a second end. A travel member is movable axially along the support with a friction lock for locking the travel member to the support in a selected axial position. A lever is pivotally attached to the travel member. The lever has an engagement surface for engaging a spine of a hand drill, whereby a force is exerted upon the hand drill by means of the lever. A stop is positioned at the second end of the support to prevent axial movement of the support when a force is exerted by the lever.
Public/Granted literature
- US20100080664A1 APPARATUS FOR APPLYING LEVERAGE FORCE TO A HAND DRILL Public/Granted day:2010-04-01
Information query