Electricity: motor control systems – Open loop speed control system for dc motor with commutator – Armature control by digital or combined analog and digital...
Patent
1995-05-02
1997-08-12
Ip, Paul
Electricity: motor control systems
Open loop speed control system for dc motor with commutator
Armature control by digital or combined analog and digital...
388921, 388937, 60452, 173148, 173176, 307139, 361 23, G05B 500, B25B 23147, F16D 3102
Patent
active
056574177
ABSTRACT:
A tool with a battery, an electrical motor, and a control system. The control system has a trigger control that connects the battery to a timer and a voltage monitor. The trigger control has a user actuated switch and a timer actuated switch. At the end of a tool operational cycle, when the user is not actuating the user actuated switch, the timer actuated switch can supply electricity to the control system. After a predetermined period of time, the timer actuated switch can then automatically electrically disconnect the control system from the battery to conserve battery power.
REFERENCES:
patent: 3590582 (1971-07-01), German
patent: 4013895 (1977-03-01), Akiyoshi et al.
patent: 4292585 (1981-09-01), Charette
patent: 4394612 (1983-07-01), Emerle et al.
patent: 4460870 (1984-07-01), Finger
patent: 4607932 (1986-08-01), Egawa et al.
patent: 4645942 (1987-02-01), Nilssen
patent: 4739435 (1988-04-01), Nothofer
patent: 4794273 (1988-12-01), McCullough et al.
patent: 4893067 (1990-01-01), Bhagwat et al.
patent: 4951171 (1990-08-01), Tran et al.
patent: 5119011 (1992-06-01), Lambert
patent: 5193048 (1993-03-01), Kaufman et al.
patent: 5195042 (1993-03-01), Ferraro et al.
patent: 5198793 (1993-03-01), Leveque
patent: 5217273 (1993-06-01), Hendricsen et al.
patent: 5250891 (1993-10-01), Glasgow
patent: 5265254 (1993-11-01), Blasciak et al.
patent: 5277261 (1994-01-01), Sakoh
patent: 5289885 (1994-03-01), Sakoh
patent: 5293156 (1994-03-01), Shoji et al.
patent: 5321309 (1994-06-01), Kolomyski
patent: 5458159 (1995-10-01), Kilmer
patent: 5477680 (1995-12-01), Heskey et al.
patent: 5526460 (1996-06-01), DeFrancesco et al.
Burndy Corporation
Ip Paul
LandOfFree
Control for battery powered tool does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Control for battery powered tool, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Control for battery powered tool will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-167187