Spinner bar
First Claim
1. In a portable surface cleaning machine for moving over a surface to be cleaned and producing a pressurized cleaning spray directed onto the surface, said machine including an elongated spinner bar having a first end, a second end, and a rotary mount therebetween, said spinner bar constructed and arranged to rotate in a plane parallel to the surface to be cleaned, the improvement comprising:
- said spinner bar defined by a single tubular member having sealed ends and a plurality of apertures extending through a side wall of said tubular member constructed and arranged for accepting spray nozzles;
a first array of spray nozzles at said first end of said spray bar and a second array of spray nozzles at said second end of said spray bar, said first array and said second array each having an outermost nozzle and an inner nozzle, said outermost nozzle fixedly inclined at a first compound angle with respect to said plane to direct said cleaning spray at said surface on a rearward side of a vertical axis extending through said spray bar to provide motive force to cause rotation of said spray bar, said nozzle also angled to spray outwardly to spray beyond the distal end of said spinner bar and said inner nozzle fixedly inclined at a second substantially vertical angle with respect to said plane to direct said cleaning spray at said surface along said vertical axis extending through said spray bar, said inner nozzle and said outermost nozzle being positioned along a longitudinal axis of said spray bar so that a portion of the spray pattern produced by said inner nozzle overlaps a portion of the spray pattern produced by said outermost nozzle during rotation of said spinner bar, whereby said outer nozzles direct spray beyond the distal ends of said spinner bar to increase the effective width of the cleaned path and, whereby said overlapping spray patterns cause the cleaned area to have a uniform appearance.
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Accused Products
Abstract
An improved spinner bar for rotary surface cleaning machines includes an array of spray nozzles at each end of the bar. The nozzles in each array are adjustable. The outermost nozzle in each array is oriented at a different angle of inclination to the plane of rotation than the angle of the inner nozzles. The improved spinner bar results in a more uniform appearance in the cleaned surface, has a low noise level and reduces man-hours.
16 Citations
2 Claims
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1. In a portable surface cleaning machine for moving over a surface to be cleaned and producing a pressurized cleaning spray directed onto the surface, said machine including an elongated spinner bar having a first end, a second end, and a rotary mount therebetween, said spinner bar constructed and arranged to rotate in a plane parallel to the surface to be cleaned, the improvement comprising:
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said spinner bar defined by a single tubular member having sealed ends and a plurality of apertures extending through a side wall of said tubular member constructed and arranged for accepting spray nozzles; a first array of spray nozzles at said first end of said spray bar and a second array of spray nozzles at said second end of said spray bar, said first array and said second array each having an outermost nozzle and an inner nozzle, said outermost nozzle fixedly inclined at a first compound angle with respect to said plane to direct said cleaning spray at said surface on a rearward side of a vertical axis extending through said spray bar to provide motive force to cause rotation of said spray bar, said nozzle also angled to spray outwardly to spray beyond the distal end of said spinner bar and said inner nozzle fixedly inclined at a second substantially vertical angle with respect to said plane to direct said cleaning spray at said surface along said vertical axis extending through said spray bar, said inner nozzle and said outermost nozzle being positioned along a longitudinal axis of said spray bar so that a portion of the spray pattern produced by said inner nozzle overlaps a portion of the spray pattern produced by said outermost nozzle during rotation of said spinner bar, whereby said outer nozzles direct spray beyond the distal ends of said spinner bar to increase the effective width of the cleaned path and, whereby said overlapping spray patterns cause the cleaned area to have a uniform appearance.
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2. In a portable surface cleaning machine for moving over a surface to be cleaned and producing a pressurized cleaning spray directed onto the surface, said machine including an elongated spinner bar having a first end, a second end, and a rotary mount therebetween, said spinner bar constructed and arranged to rotate in a plane parallel to the surface to be cleaned, the improvement comprising:
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said spinner bar defined by a single tubular member having sealed ends and a plurality of apertures extending through a side wall of said tubular member constructed and arranged for accepting spray nozzles; a first array of spray nozzles at said first end and a second array of spray nozzles at said second end, said first array and said second array each having an outermost nozzle an intermediate nozzle and an innermost nozzle, said outermost nozzle inclined at a first compound angle with respect to said plane to direct said cleaning spray at said surface on a rearward side of a vertical axis extending through said spray bar to provide motive force to cause rotation of said spray bar, said nozzle also angled to spray outwardly to spray beyond the distal end of said spinner bar, said intermediate nozzle inclined at a second substantially perpendicular angle with respect to said plane to direct said cleaning spray at said surface, and said at least one innermost nozzle inclined at a third substantially perpendicular angle with respect to said plane to direct said cleaning spray at said surface, said innermost nozzle, said intermediate nozzle and said outermost nozzle being positioned along a longitudinal axis of said spray bar so that a portion of the spray pattern produced by said at least one intermediate nozzle overlaps a portion of the spray pattern produced by said outermost nozzle and a portion of said innermost nozzle overlaps a portion of the spray pattern produced by said intermediate nozzle during rotation of said spinner bar, whereby said outer nozzles direct spray beyond the distal ends of said spinner bar to increase the effective width of the cleaned path and, whereby said overlapping spray patterns cause the cleaned area to have a uniform appearance.
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Specification