192 clutches and power-stop control – Stop mechanism – Drive release and brake
Patent
1979-04-26
1981-05-19
Herrmann, Allan D.
192 clutches and power-stop control
Stop mechanism
Drive release and brake
81470, 83 62, 91 42, 91 59, 173 12, 192 0033, 192 0034, 192 2, 192 3R, 192 56R, 192103R, 318275, 318461, F16D 4320, F16D 4324, F16D 6702
Patent
active
042679141
ABSTRACT:
An impending kickback condition is the operation of a power tool or machine tool system is sensed and used to control or eliminate the kickback. The ability to sense an impending kickback condition can be used in all categories of power driven tools. The change in force applied to the power driven tool or other implement is monitored by measuring the rate of change of speed of the tool or implement, and if the speed is decreasing, the rate of change of speed is compared with a threshold value which may be either preset or variable. If this threshold value is exceeded, an output control signal is generated which inhibits the coupling of power to the tool or other implement and/or applies a brake to stop the tool or implement. In order for power to once again be coupled from the motive power source to the shaft, the start switch must be opened and then reclosed or some other signal provided by the operator or another predetermined condition must be met.
REFERENCES:
patent: 1184826 (1916-05-01), Cooper
patent: 1433712 (1922-10-01), Fortescue
patent: 1522262 (1925-01-01), Parker
patent: 1753958 (1930-04-01), West
patent: 4023406 (1977-05-01), Benz, Jr.
patent: 4026369 (1977-05-01), Vliet
patent: 4040117 (1977-08-01), Houser
patent: 4110829 (1978-08-01), Boys
Black & Decker Inc.
Bloom Leonard
Herrmann Allan D.
Murphy Edward D.
Weinstein Harold
LandOfFree
Anti-kickback power tool control does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Anti-kickback power tool control, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Anti-kickback power tool control will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1484632