High pressure water cleaning device for floors, gratings, and paint laden handling devices

A cleaning device for floors and gratings comprising a hollow spray enclosure having top and side walls and an open bottom;

• wheels journalled upon and movably supporting said enclosure with its bottom closely adjacent a floor surface;
• a rotating seal including an upright spindle within said enclosure secured to and projecting above said top wall;
• said spindle having an axial bore with a high pressure water inlet at the top thereof;
• said bore extending for a portion of the length of said spindle and terminating in a plurality of radial discharge ports;
• said seal including a rotatable tubular body sealingly journalled and supported upon and enclosing said spindle;
• said body having an internal annular high pressure water chamber communicating with said discharge ports, and a plurality of radial outlets communicating with said chamber;
• laterally disposed tubular nozzle arms at their inner ends projected into said outlets and secured to said body for rotation therewith within said enclosure;
• a nozzle adjustably mounted upon an end portion of each arm for delivering streams of high pressure water within said enclosure and downwardly in a predetermined pattern upon the floor surface or a grating therein;
• rotative power means on said top wall connected to said body;
• said power means including a motor having an axial drive shaft projected into said enclosure;
• interconnected gear means on said shaft and body;
• said motor being an air-driven motor;
• a hose connected to said motor and to a source of high pressure air;
• a U-shaped angularly adjustable tubular handle having closed ends pivotally connected to said enclosure;
• the connection of said air hose to said air motor including a portion of said hose connected to said handle upon one leg thereof;
• a portion of said air hose interconnecting the other leg of said handle and said air motor;
• and a normally closed quick release manual air valve upon the bight of said handle controlling the flow of high pressure air passing through said handle.

A spray device working in the approximate range of 10,000 psi and below comprising a hollow spray enclosure having top and side walls and an open bottom;

• a high pressure rotating seal including an upright spindle within said enclosure secured to and projecting above said top wall;
• said spindle having an axial bore with a high pressure water inlet at the top thereof;
• said bore extending for a portion of the length of said spindle and terminating in a plurality of radial discharge ports;
• said seal including a rotatable tubular body sealingly journalled and supported upon and enclosing said spindle;
• said body having an internal annular high pressure water chamber communicating with said discharge ports, and a plurality of radial outlets communicating with said chamber;
• laterally disposed tubular nozzle arms at their inner ends projected into said outlets and secured to said body for rotation therewith within said enclosure;
• a nozzle adjustably mounted upon an end portion of each arm for delivering streams of high pressure water within said enclosure and downwardly in a predetermined pattern upon the floor surface or a grating therein;
• rotative power means on said top wall connected to said body;
• the journalling of said body including a pair of bushing seals mounted within and upon said body above and below said body water chamber and discharge ports;
• precision ball bearings mounted within said body adjacent the top and bottom thereof in registry with said spindle;
• means supporting and retaining said body against endwise movement relative to said spindle including a pair of stop shoulders upon said spindle engaging said bearings, and a pair of shoulders within said body supporting said bearings;
• a bearing cover within the lower end of said body supportively engaging the adjacent ball bearing, and sealed with respect to said spindle and body;
• a washer secured upon the lower end of said spindle and engaging said cover;
• and
• a series of annular water seals within said body interposed between said body and spindle upon the top and bottom of one ball bearing and upon the top of the other ball bearing respectively excluding water therefrom.

A cleaning device for discharging cleaning fluid towards a surface comprising a hollow spray enclosure having top and side walls and an open bottom;

• said top wall having inner and outer surfaces;
• a rotating seal including an upright spindle within said enclosure secured to and projecting above said top wall;
• said spindle having an axial bore with a high pressure fluid inlet at the top thereof;
• said bore extending for a portion of the length of said spindle and terminating in a plurality of radial discharge ports;
• said seal including a rotatable tubular body sealingly journalled and supported upon and enclosing said spindle;
• said body having an internal high pressure fluid chamber communicating with said discharge ports, and a plurality of radial outlets communicating with said chamber;
• laterally disposed tubular nozzle arms at their inner ends projected into said outlets and secured to said body for rotation therewith within said enclosure;
• a nozzle adjustably mounted upon an end portion of each arm for delivering streams of high pressure fluid within said enclosure and downwardly in a predetermined pattern upon the surface;
• rotative power means on said top wall connected to said body;
• said power means including a motor located opposite the outer surface of said top wall and having an axial drive shaft projected through said top wall into said enclosure;
• interconnected gear means on said shaft and body;
• said gear means including sprocket gears on said shaft and body and a connecting sprocket chain;
• said spindle including a radial flange bearing against the inner surface of said top wall and secured thereto;
• said body including a pair of bushing seals mounted within and upon said body, said bushing seals being located above and below said body fluid chamber and said discharge ports;
• precision ball bearings mounted within said body adjacent opposite ends thereof in registry with said spindle;
• means supporting and retaining said body against endwise movement relative to said spindle including a pair of stop shoulders upon said spindle;
• engaging said bearings and a pair of stop shoulders within said body supporting said bearings;
• a bearing cover within the lower end of said body supportively engaging the adjacent ball bearing, and sealed with respect to said spindle and body;
• fastening means secured upon the lower end of said spindle and engaging said cover;
• a series of annular seals within said body interposed between said body and spindle upon the top and bottom of one ball bearing and upon the top of the other ball bearing respectively for excluding fluid from the bearings;
• annular drain cavities between said body and spindle longitudinally outwardly of said bushing seals respectively, and a plurality of radial fluid drains through said body communicating with said drain cavities;
• whereby some high pressure fluid from said high pressure fluid chamber passes through said bushing seals and into said drain cavities thereby lubricating said bushing seals.

A high pressure rotating seal for use in a liquid cleaning device working in the approximate range of 10,000 psi and below comprising a spindle having an axial bore with a high pressure liquid inlet at one end thereof;

• said bore extending for a portion of the length of said spindle and terminating in a plurality of radial discharge ports;
• a rotatable tubular body sealingly journalled and supported upon and enclosing said spindle;
• said body having an internal annular high pressure liquid chamber communicating with said discharge ports, and a plurality of radial outlets communicating with said chamber;
• said body including a pair of bushing seals mounted within and upon said body, said bushing seals being located above and below said body liquid chamber and said discharge ports;
• precision ball bearings mounted within said body adjacent opposite ends thereof in registry with said spindle;
• means supporting and retaining said body against endwise movement relative to said spindle including a pair of stop shoulders upon said spindle, engaging said bearings and a pair of stop shoulders within said body supporting said bearings;
• a bearing cover within the other end of said body supportively engaging the adjacent ball bearing, and sealed with respect to said spindle and body;
• fastening means secured upon said other end of said spindle and engaging said cover;
• a series of annular seals within said body interposed between said body and spindle upon opposite sides of one ball bearing and upon one side of the other ball bearing respectively for excluding liquid from the said ball bearings;
• annular drain cavities between said body and spindle longitudinally outwardly of said bushing seals respectively, and a plurality of radial liquid drains through said body communicating with said drain cavities;
• and
• whereby some high pressure liquid from said high pressure chamber is adapted to pass through said bushing seals and into said drain cavities for lubricating said bushing seals.