Fluid sprinkling – spraying – and diffusing – Body or animal carried – Hand manipulated discharge means
Patent
1994-03-29
1995-03-07
Grant, William
Fluid sprinkling, spraying, and diffusing
Body or animal carried
Hand manipulated discharge means
239152, 239526, 417234, B05B 904, F16B 300
Patent
active
053950526
DESCRIPTION:
BRIEF SUMMARY
The invention relates to a high-pressure cleaning device having a housing, a liquid pump arranged in the housing, a motor for driving the liquid pump likewise enclosed by the housing, a spray gun comprising a jet pipe and an actuating handle and a hose connecting the liquid pump with the gun.
A device of this type is known from U.S. Pat. No. 4,972,994. It can be operated in two different ways, namely firstly as a stationary device, whereby the housing with the device parts enclosed thereby is stationarily arranged, for example, on the ground and the spray gun connected to the liquid pump via a hose is gripped at its actuating handle by hand and directed onto the areas to be cleaned. On the other hand, when the hose is omitted, the jet pipe can also be directly connected with the housing and the liquid pump, whereby the housing is then gripped at a special handle provided therefor and the unit consisting of the jet pipe and housing is directed onto the areas to be cleaned. With this, it is disadvantageous that in a transition from the one to the other type of operation, the gun together with its hose must be detached from the housing and a separate jet pipe has to be attached to the latter. In addition, the special handle provided at the top side of the housing often does not make an aimed alignment of the liquid spray jet exiting the jet pipe possible onto the area to be cleaned.
The object of the invention is to remedy the described shortcomings and to design a generic high-pressure cleaning device such that, on the one hand, it can be operated with a spray gun connected to a hose and, on the other hand, with a jet pipe rigidly arranged on the housing and in the transition from the one to the other type of operation, no essential equipment changeover operations are required.
The object is accomplished in accordance with the invention by connecting means for releasably attaching the spray gun to the housing such that the unit consisting of gun and housing can be operated by manually gripping the actuating or control handle of the gun.
With that, the spray gun, thus, remains constantly connected to the housing with its hose, however, the unit consisting of the housing and the gun can be gripped at the actuating handle of the gun and in the same manner as the gun on its own, can be precisely directed onto the areas to be cleaned .
The following description of preferred embodiments of the invention serve to explain the invention in further detail in conjunction with the drawings: In the drawings:
FIG. 1 shows a high-pressure cleaning device in side view, with an electric motor for driving a high-pressure pump;
FIG. 2 shows the device from FIG. 1 in cross-sectional view;
FIG. 3 shows a high-pressure cleaning device with an internal combustion engine for driving a high-pressure pump
FIG. 4 shows a front view of the device from FIG. 3 and
FIG. 5 shows an alternate mounting of the spray gun on the housing.
The high-pressure cleaning device represented in FIGS. 1 and 2 comprises a housing 1 which encloses a customary liquid high-pressure pump 2. The pump 2 is driven by an electric motor 3. A flexible hose 4 leaves the pump 2 and is connected with a spray gun 5. The spray gun 5 comprises, for its part in the conventional manner, a jet pipe 6 with spray nozzle 7 and an actuating handle 8 into which the hose 4 opens. The actuating or control handle 8 comprises, in a manner known per se, a hand-operated switch (not illustrated) for switching a high-pressure spray jet exiting the nozzle 7 on and off. The gun 5 is manually gripped at the actuating handle 8 and is aligned with its nozzle onto the area to be cleaned. Normally, the housing 1 with its components enclosed therein is stationarily placed on the ground, while the spray gun 5, which is merely connected with the housing via the flexible hose 4, is freely and movably aimed at the area to be cleaned. With this, the action radius is naturally limited by the length of the hose 4.
As is apparent from FIGS. 1 and 2, the spray gun 5 can be rigidly attached in a releasab
REFERENCES:
patent: 2752200 (1956-06-01), Santarelli
patent: 3904116 (1975-09-01), Jones et al.
patent: 4810169 (1989-03-01), Kranzle
patent: 4972994 (1990-11-01), Woodhall et al.
Nathan Robert
Nieuwkamp Wolfgang
Schneider Josef
Alfred Karcher GmbH & Co.
Grant William
Lipsitz Barry R.
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