Parts washer with solvent recycling
First Claim
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1. A parts washer comprising:
- a cleaning sink having a bottom wall defining a sink drain therein;
a solvent delivery tube attached to the sink and having an outlet device for directing solvent onto a part to be washed in the sink;
a solvent container located below the sink, the container being adapted to contain cleaning solvent and having an inlet opening for receiving solvent from the sink drain, the container also having a container wall including a bottom wall portion;
an extraction conduit extending into the solvent container for withdrawing solvent from the container, the extraction conduit being connected to the solvent delivery tube;
a pump operatively coupled to the extraction conduit for pumping solvent from the container to the solvent delivery tube;
a clean-out tube extending into the container through the container wall to a location adjacent to the container bottom wall portion, the clean-out tube having an outlet end portion located outside the container;
a return tube passing through the container wall for returning solvent to the container, the return tube having an inlet end portion, located outside the container; and
means for activating the pump for circulating solvent from the container, through the solvent delivery tube and back to the container.
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Abstract
A parts washer is disclosed of the type having a sink, a drum of solvent, and a recirculating system for pumping the solvent from the drum through a hose or nozzle arrangement for spraying the solvent on the parts to be washed in the sink, and then allowing the solvent to drain from the sink back into the solvent drum. In this invention, the solvent drum is fitted with an extra clean-out tube for withdrawing contaminated solvent from the drum, and a return tube for replenishing the drum with clean solvent. The clean-out tube and return tube are fitted with quick-connect couplings for releasably attaching solvent cleaning apparatus thereto, such as filtration or distillation type recycling apparatus.
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Citations
18 Claims
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1. A parts washer comprising:
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a cleaning sink having a bottom wall defining a sink drain therein;
a solvent delivery tube attached to the sink and having an outlet device for directing solvent onto a part to be washed in the sink;
a solvent container located below the sink, the container being adapted to contain cleaning solvent and having an inlet opening for receiving solvent from the sink drain, the container also having a container wall including a bottom wall portion;
an extraction conduit extending into the solvent container for withdrawing solvent from the container, the extraction conduit being connected to the solvent delivery tube;
a pump operatively coupled to the extraction conduit for pumping solvent from the container to the solvent delivery tube;
a clean-out tube extending into the container through the container wall to a location adjacent to the container bottom wall portion, the clean-out tube having an outlet end portion located outside the container;
a return tube passing through the container wall for returning solvent to the container, the return tube having an inlet end portion, located outside the container; and
means for activating the pump for circulating solvent from the container, through the solvent delivery tube and back to the container. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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Specification