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US 5,033,552 AGranted
Multi-function electric tool
OwnerCheng-Te Huinventor
Life of this patent
Estimating the term…
Abstract
A multi-function tool system (200) which includes a singular tool housing (1) containing an electric motor (10). A plurality of tool head housings (2, 2', 2", and 2'") contain respective reduction gears (20) having particular speed ratios to allow individual tool members to be driven in a rotative member at an optimal rotative speed. In this manner, a singular tool housing (1) may be used in conjunction with a plurality of tool members which rotate at differing speeds.
Claims1
A multi-function tool system comprising:
- (a) a tool housing having an electric motor contained therein, said electric motor being coupled to a driving gear extending external said tool housing;
- (b) at least one tool head housing having a reduction gear contained therein, said driving gear and said reduction gear being matingly engageable for rotatively driving a tool member extending from said tool head housing;
- and,
- (c) safety switch means displaceably mounted to said tool housing including a safety switch lug member for reversible insertion into a blind hole formed in said tool head housing for, (1) rotatively actuating said tool member when said safety switch lug member is at least partially inserted into said blind hole, and (2) deactuating a rotative displacement of said tool member when said safety switch lug member is external said blind hole formed in said tool head housing.
1 more element
Dependencies are inferred from the claim text.