Resumes
Resumes
Don Harvell Phones & Addresses
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25 Racine Ct, Greenville, SC 29617 (864) 246-4993
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Fountain Inn, SC
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Travelers Rest, SC
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25 Racine Ct, Greenville, SC 29617 (864) 884-3167
Work
Position:
Sales Occupations
Education
Degree:
Associate degree or higher
Publications
Us Patents
Quick Lock-Release Mechanism For A Trigger Switch
View pageUS Patent:
40977056, Jun 27, 1978
Filed:
Aug 5, 1977
Appl. No.:
5/822162
Inventors:
Don L. Harvell - Greenville SC
Assignee:
The Singer Company - New York NY
International Classification:
H01H 906
US Classification:
200157
Abstract:
A quick lock-release mechanism for a trigger of a trigger switch mounted in the handle of a drill housing for activating a motor of a drill, which mechanism will selectively lock and release the trigger. The trigger is slidably connected in the handle with a tapered member affixed in the handle. A locking member is slidably connected to the tapered member and is in superposition to the trigger. A spring is disposed between the trigger and the locking member normally to urge each in opposite directions. The locking member is moveable outwardly of the handle to be forced by the tapered member into a wedge lock position against the trigger whereby the trigger switch is locked "on" and releasable upon slight trigger depression.
Spindle Locking Mechanism For A Rotary Power Device
View pageUS Patent:
41796322, Dec 18, 1979
Filed:
Dec 6, 1978
Appl. No.:
5/967176
Inventors:
Don L. Harvell - Greenville SC
Assignee:
The Singer Company - New York NY
International Classification:
H02K 714
US Classification:
310 50
Abstract:
The instant invention provides a manually operable locking mechanism for a rotary power tool. The locking mechanism comprises a housing for the rotary power tool, the housing having an opening therein, a spindle rotatably mounted within the housing, the spindle having a radially extending aperture in axial alignment with the housing opening, a loop spring disposed adjacent the housing, the loop spring having a hole in alignment with the opening in the housing, and a lock pin. The lock pin includes an outer section slidingly engaging the opening in the housing, a manually engageable button at its outer end extending radially outwardly from the housing, and a shaft at its inner end extending radially inwardly of the housing and through the hole of the loop spring. The locking mechanism further comprises means connected to the lock pin for collapsing the loop spring radially inwardly so that, when the aperture in the spindle is aligned with the lock pin, the shaft of the lock pin may enter said aperture and thereby prevent rotation of the spindle.