| Patent Number |
Title Of Patent |
Date Issued |
| 5558478 |
Device for transferring a torque to a tool in a hand tool apparatus |
September 24, 1996 |
| The device for transferring torque to a tool member in a hand tool apparatus includes a plurality of catch grooves (23) and at least one elongated locking groove (25) spaced circumferentially from the catch grooves (23) provided in the tool shaft (11) of the tool member (12); a tool |
| 4250971 |
Particulate material intercepting arrangement for a hand-held tool |
February 17, 1981 |
| A dust-intercepting member is so mounted on a hand-held power tool as to contact a structure being acted upon around the tool element of the power tool, by a mounting arrangement which includes two hollow elongated mounting members one of which is received within the other for telescopin |
| 4207953 |
Particulate material intercepting arrangement for a hand held tool |
June 17, 1980 |
| A dust-intercepting member is so mounted on a hand-held power tool as to contact a structure being acted upon around the tool element of the power tool, by a mounting arrangement which includes two hollow elongated mounting members one of which is received within the other for telescopin |
| 3984192 |
Drill mount |
October 5, 1976 |
| A rotary spindle of a drill mount has a free end provided with a thread whose angle of rise is so selected that its tangent is at least equal to the coefficient of static friction of steel on steel. |
