Brushing – scrubbing – and general cleaning – Machines – With air blast or suction
Patent
1985-12-31
1987-04-28
Moore, Chris K.
Brushing, scrubbing, and general cleaning
Machines
With air blast or suction
15390, 192 30W, 192 56R, A47L 904
Patent
active
046602470
ABSTRACT:
A temperature responsive fuse is provided for use in a vacuum cleaner brush dowel drive clutch mechanism to prevent overheating of the clutch mechanism upon a continued rotation of the drive belt after the brush dowel has stalled due to jamming or similar occurances. The friction clutch is provided to prevent damage to the cog drive belt if the brush dowel becomes stalled and the fuse, which is a meltable spacer positioned between a loading spring and the engaging friction drive surfaces, is provided to prevent excessive heat build-up in the clutch mechanism in case a safety circuit, which normally detects stoppage of the brush dowel and deenergizes the dowel drive motor, should fail. The fuse spacer will melt at a temperature in the range of 300.degree. F. to 400.degree. F. to unload the spring thereby reducing friction between the engaging surfaces of the clutch mechanism and thus lowering the amount of heat generated.
REFERENCES:
patent: 2539534 (1951-01-01), Eckhardt
patent: 4099291 (1978-07-01), Bowerman
patent: 4168564 (1979-09-01), Grabovez
patent: 4271947 (1981-06-01), Gaeckle
patent: 4317253 (1982-03-01), Gut et al.
Frohbieter Edwin H.
Linstromberg William J.
Moore Chris K.
Whirlpool Corporation
LandOfFree
Temperature limiting system for a spring loaded torque limiting does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Temperature limiting system for a spring loaded torque limiting , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Temperature limiting system for a spring loaded torque limiting will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-468569