Liquid extraction machine
First Claim
1. An extraction machine for cleaning a floor surface, the extraction machine being movable relative to the floor surface in a desired direction of travel to clean the floor surface, said extraction machine comprising:
- a cleaning solution dispenser capable of dispensing a chemical cleaning agent onto the surface being cleaned;
a container carried onboard the extraction machine and defining an interior space for holding a supply of said chemical cleaning agent, the container having an opening and a closure for the opening, the closure having a passage extending therethrough in fluid communication with the interior space of the container;
a chemical delivery line providing fluid communication between the passage of the container closure and the cleaning solution dispenser for delivering chemical cleaning agent from said interior space of the container to said cleaning solution dispenser; and
a metering device generally adjacent the container closure in fluid communication with the passage of said closure for metering the flow of chemical cleaning agent from said container.
2 Assignments
0 Petitions
Accused Products
Abstract
An extraction machine for cleaning a floor surface, such as carpeting, has a cleaning solution dispenser capable of dispensing a chemical cleaning agent onto the floor surface, and a source of chemical cleaning agent carried onboard the extraction machine and defining an interior space for holding chemical cleaning agent. The container has an opening and a closure for the opening, with the closure having a passage extending therethrough in fluid communication with the interior space of the container. A chemical delivery line provides fluid communication between the passage and the cleaning solution dispenser for delivering chemical cleaning agent from the container to the cleaning solution dispenser. A metering device is disposed generally adjacent the container closure in fluid communication with the passage for metering the flow of chemical cleaning agent from the source of cleaning agent.
87 Citations
13 Claims
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1. An extraction machine for cleaning a floor surface, the extraction machine being movable relative to the floor surface in a desired direction of travel to clean the floor surface, said extraction machine comprising:
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a cleaning solution dispenser capable of dispensing a chemical cleaning agent onto the surface being cleaned;
a container carried onboard the extraction machine and defining an interior space for holding a supply of said chemical cleaning agent, the container having an opening and a closure for the opening, the closure having a passage extending therethrough in fluid communication with the interior space of the container;
a chemical delivery line providing fluid communication between the passage of the container closure and the cleaning solution dispenser for delivering chemical cleaning agent from said interior space of the container to said cleaning solution dispenser; and
a metering device generally adjacent the container closure in fluid communication with the passage of said closure for metering the flow of chemical cleaning agent from said container. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. An extraction machine for cleaning a floor surface, the extraction machine being movable relative to the floor surface in a desired direction of travel to clean the floor surface, said extraction machine comprising:
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a cleaning solution dispenser capable of dispensing a chemical cleaning agent onto the surface being cleaned;
a source of chemical cleaning agent carried onboard the extraction machine;
a chemical delivery line providing fluid communication between the source of chemical cleaning agent and the cleaning solution dispenser for delivering chemical cleaning agent from said source of chemical cleaning agent to said cleaning solution dispenser;
a source of diluting solution for delivering diluting solution to said cleaning solution dispenser, said source of diluting solution being in fluid communication with the chemical delivery line to permit admixture of the chemical cleaning agent and the diluting solution during flow to cleaning solution dispenser to form a cleaning solution for dispensing onto the floor surface by the cleaning solution dispenser;
an injection device in fluid communication with the source of chemical cleaning agent for injecting chemical cleaning agent from the source of chemical cleaning agent into admixing relationship with the diluting solution to facilitate admixture of the cleaning agent with the diluting solution; and
a metering device for metering the flow of chemical cleaning agent from the source of cleaning agent, said metering device being disposed substantially upstream of the injection device.
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Specification