Pumps – Ambulant – body supported – or with carrying handle
Patent
1989-08-07
1991-08-20
Smith, Leonard E.
Pumps
Ambulant, body supported, or with carrying handle
417366, 417422, 417371, 418 15, 418 77, 418206, F04C 204, F04B 1706
Patent
active
050409506
ABSTRACT:
A portable, high-pressure, power washing system is described which includes an electric motor driven gear pump where the electric motor is effectively water cooled by virtue of being contained in a thermally conductive housing surrounded by an insulating water jacket through which the water being pumped is made to flow before reaching the pump's inlet port. The pump is driven through a gear reduction mechanism such that a relatively inexpensive, single-phase, series AC (universal) motor normally operating at a high rpm can be employed. By proper dimensioning of the pump chamber relative to the drive and idler gears and by providing a flow divider at the pump chamber's discharge orifice, high pumping efficiency is obtained. Completing the assembly is a discharge wand for directing the high pressure water at the surface to be cleaned and for controlling the on/off state of the pump's drive motor.
REFERENCES:
patent: 2554191 (1951-05-01), Huber
patent: 2763214 (1956-09-01), White
patent: 3015283 (1962-01-01), Knipp
patent: 3207444 (1965-09-01), Kelly et al.
patent: 4013225 (1977-03-01), Davis
patent: 4015828 (1977-04-01), Miles
patent: 4195970 (1980-04-01), Zalis
patent: 4480967 (1984-11-01), Schulze
patent: 4778354 (1988-10-01), Idei
patent: 4790454 (1988-12-01), Clark et al.
patent: 4810169 (1989-03-01), Kranzle
patent: 4824340 (1989-04-01), Bruggemann et al.
patent: 4861231 (1989-08-01), Howard
patent: 4926904 (1990-05-01), Polk et al.
Campbell, Jr. Glenn M.
Campbell, Sr. Glenn M.
Dalquist, III H. David
Everson Gary R.
Keleny Lloyd G.
Northland Aluminum Products, Inc.
Scheuermann David W.
Smith Leonard E.
LandOfFree
Power washing apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Power washing apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Power washing apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1004350