Brushing – scrubbing – and general cleaning – Machines – With air blast or suction
Patent
1983-11-07
1985-04-30
Moore, Chris K.
Brushing, scrubbing, and general cleaning
Machines
With air blast or suction
A47L 534
Patent
active
045134723
ABSTRACT:
A foot-operated height-adjustment mechanism for retrofit and replacement of the nozzle height-adjustment screw in an upright floor vacuum cleaner of the type characterized by having a front floor cleaning nozzle that is pivotally adjustable in height about the front wheels through raising and lowering the upwardly spring biased rear wheel carrier fork in contact with the screw comprising a threaded hollow tube, for receipt in the empty screw hole, a shaft slideably received in the tube, biased down against the carrier fork, an exposed mounting cap encircling the tube and including an aperture formed in one side thereof tapering inward to expose the shaft, a first lever extending out of the aperture, encircling the shaft and adapted to release the shaft when the other end is pressed down but preventing the shaft from upward movement within the tube when raised, the shaft biased in the upward, locked position, and a second lever adjacent the carrier fork and extending behind the rear wheels and terminating in an upwardly turned lip for depressing by the operator's foot to adjust the height of the floor cleaning nozzle above the floor.
REFERENCES:
patent: 1643763 (1927-09-01), Curry
patent: 1852100 (1932-04-01), Ballou
patent: 2048518 (1936-07-01), Ray
patent: 3608333 (1971-09-01), Selley et al.
Moore Chris K.
Murphey John J.
LandOfFree
Height adjustment mechanism does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Height adjustment mechanism, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Height adjustment mechanism will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1961230