Claims
- 1. An electrical trigger switch for a power tool comprising a trigger having first and second elongate switching members longitudinally displaceable against a resilient biasing force into engagement with first and second electrical switching elements respectively, said first and second elongated switching members longitudinally extending from said trigger and being separate, apart and spaced from one another, whereby longitudinal displacement of said trigger moves said first switching member into engagement with said first switching element to effect a first switching operation for operating a first function which is non-motor related wherein said first function occurs prior to motor actuation and continued longitudinal displacement of said trigger moves said second switching member into engagement with said second switching element to effect a second function which is an independent switching operation for operating a motor related function.
- 2. A switch as claimed in claim 1 in which said first switching member is restrained in engagement with said first switching element when said second switching member is in engagement with said second switching element.
- 3. A power tool comprising an electrical trigger switch as claimed in claim 1.
- 4. A power tool as claimed in claim 3 in which both said first and second switching operations complete electrical contact between the power tool power source and separate electrical functions of the tool, wherein the electrical function operated by the first switching operation is initiated before the second electrical function and is subsequently maintained throughout operation of the second electrical function.
- 5. A power tool as claimed in claim 4 further comprising an electrically powered level indicator, wherein said the first switching operation operates said level indicator and said second switching operation operates the motor of said power tool.
Priority Claims (1)
Number |
Date |
Country |
Kind |
0003202 |
Feb 2000 |
GB |
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CROSS-REFERENCE TO RELATED APPLICATIONS
This application is a continuation of U.S. patent application No. 09/958,701 filed on Jan. 11, 2002, entitled “Alignment Device Utilizing Components Responsive to Gravity”, now U.S. Pat. No. 6,694,631 issued Feb. 24, 2004. The disclosures of the above application are incorporated herein by reference.
US Referenced Citations (36)
Continuations (1)
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Number |
Date |
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Parent |
09/958701 |
Jan 2002 |
US |
Child |
10/682710 |
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US |