Center feed dispenser for cleaning solution
First Claim
1. In a cleaning machine for removing soilage from a surface, a mobile frame, a rotary cleaning element on the frame for working on the surface and power means for rotating it, the rotary cleaning element being constructed and arranged so that, when rotated at a relatively high speed, it will create an air pressure differential, a source of cleaning solution on the frame, and a connection between the cleaning solution source and the air pressure differential so that the air pressure differential causes cleaning solution to be supplied from the source to the center of the rotary cleaning element.
2 Assignments
0 Petitions
Accused Products
Abstract
In a machine which cleans or buffs a floor by rotating a cleaning or buffing pad against the floor at high speed, simplified means are disclosed for supplying a controlled amount of cleaning fluid to the floor at the center of the cleaning pad. Vacuum which is created within the pad housing by the centrifugal action of the cleaning pad draws cleaning fluid out of a reservoir and into the central region of the pad. Flow is controlled and flow rate is set by limiting atmospheric vents. There is precisely controlled flow to the center of the pad, which may be continuous or on demand, no pump or moving parts of any kind are required, and the system is self-cleaning.
42 Citations
12 Claims
- 1. In a cleaning machine for removing soilage from a surface, a mobile frame, a rotary cleaning element on the frame for working on the surface and power means for rotating it, the rotary cleaning element being constructed and arranged so that, when rotated at a relatively high speed, it will create an air pressure differential, a source of cleaning solution on the frame, and a connection between the cleaning solution source and the air pressure differential so that the air pressure differential causes cleaning solution to be supplied from the source to the center of the rotary cleaning element.
- 6. A method of supplying cleaning solution from a source to a rotary disk type cleaning tool which is adapted to engage a surface to be cleaned, including the steps of rotating the tool in a manner that creates an air pressure differential, communicating the solution source to the tool so that the air pressure differential created by the tool will tend to cause the cleaning solution to flow from the source to the tool, and venting the air pressure differential when supply of solution to the tool is not desired.
- 9. In a floor cleaning machine, a frame, a source of sub-atmospheric air pressure on the frame, a passage in communication with the source of sub-atmospheric air pressure, a cleaning solution container on the frame in communication with the passage below the level of solution in the container so that cleaning solution may pass from the container to the passage and the sub-atmospheric air pressure will be communicated to the container below the level of solution in the container, and an airbleed passage in the frame open to atmosphere and in communication with the interior of the container below the level of solution to the container so that the vacuum in the container caused by the outflow of cleaning fluid from the container will be automatically relieved from time to time by atmospheric air admitted through the airbleed passage in response to the subatmospheric pressure within the container.
- 11. In a floor cleaning machine, a frame, a cleaning tool on the frame, a sub-atmospheric air pressure source on the frame, a passage ex tending to the cleaning tool and in communication with the sub-atmospheric air pressure source, an otherwise closed cleaning solution container on the frame with the lower portion thereof in communication with the passage so that the sub-atmospheric air pressure source will be communicated to the interior of the container, and an airbleed passage in the frame open to atmosphere and in communication with the lower portion of the interior of the container so that the vacuum caused by the outflow off cleaning fluid from the inverted container will be automatically relieved from time to time by atmospheric air through the airbleed passage.
Specification