Apparatus having a fluid timer for cleaning paint from objects
First Claim
Patent Images
1. An apparatus comprising:
- a work chamber into which may be placed an object to be cleaned, and a cover to enclose the work chamber;
fluid transport means for carrying cleaning agent to the work chamber, including pump means for pressurizing the cleaning agent;
fluid timer means, in direct communication with the fluid transport means, for interrupting cleaning agent flow after a predetermined interval including a movable piston;
switch means for activating and deactivating the pump means comprising a cut-off valve having an activated and deactivated mode of operation;
wherein the fluid timer means includes slide means, movable by the piston, into contact with the cut-off valve, for causing the cut-off valve to enter its deactivated mode to deactivate the pump means.
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Abstract
An apparatus comprising: a work chamber (14) in which may be placed an object to be cleaned, and a cover (32) to enclose the work chamber; a fluid delivery system (52, 54) for delivering cleaning solvent to the work chamber (14) including a pump (40) for pressurizing the solvent; a first and second switch (204,210) for activiating and deactivating the operation of the pump means; and a fluid timer (220), in communication with the fluid delivery system, for causing at least one switch to be activated and thereafter after a predetermined time deactived terminating operation of the pump.
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Citations
27 Claims
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1. An apparatus comprising:
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a work chamber into which may be placed an object to be cleaned, and a cover to enclose the work chamber; fluid transport means for carrying cleaning agent to the work chamber, including pump means for pressurizing the cleaning agent; fluid timer means, in direct communication with the fluid transport means, for interrupting cleaning agent flow after a predetermined interval including a movable piston; switch means for activating and deactivating the pump means comprising a cut-off valve having an activated and deactivated mode of operation; wherein the fluid timer means includes slide means, movable by the piston, into contact with the cut-off valve, for causing the cut-off valve to enter its deactivated mode to deactivate the pump means. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. An apparatus comprising:
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a work chamber into which may be placed an object to be cleaned, and a cover to enclose the work chamber; fluid transport means for carrying cleaning agent to the work chamber, including pump means for pressurizing the cleaning agent; fluid timer means, in communication with the fluid transport means, for interrupting cleaning agent flow after a predetermined interval; wherein the pump means is a compressed air responsive pump adapted to be connected in circuit with a source of compressed air, the apparatus further including a reset valve means, connected in series with a cut-off valve and the pump means, for permitting air flow communications to the pump means when the reset valve means is reset. - View Dependent Claims (17, 18, 19, 20, 21)
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22. An apparatus comprising:
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a work chamber into which may be placed an object to be cleaned, and a cover to enclose the work chamber; fluid transport means for carrying cleaning agent to the work chamber, including pump means for pressurizing the cleaning agent; fluid timer means, in communication with the fluid transport means, for interrupting cleaning agent flow after a predetermined interval, including a piston movable in a housing; wherein a manually operable on-off valve is connected in circuit with the fluid transport means, downstream of the pump means, and linked to the fluid timer means so that when the piston moves outward from its housing the on-off valve is urged to its off state, the on-off valve being manually resettable to its on state.
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23. An apparatus comprising:
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a work chamber into which may be placed an object to be cleaned, and a cover to enclose the work chamber; fluid transport means for carrying cleaning agent to the work chamber, including pump means for pressurizing the cleaning agent, wherein the pump means is powered by an electric motor; fluid timer means, in communication with the fluid transport means, for interrupting cleaning agent flow after a predetermined interval, wherein the fluid timer means includes an electric timer in circuit with the motor; wherein a solenoid valve is located downstream of the pump means and responsive to an electric control signal for restricting flow from the pump means to other parts of the fluid transport means.
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24. An apparatus comprising:
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a work chamber into which may be placed an object to be cleaned, and a cover to enclose the work chamber; fluid transport means for carrying cleaning agent to the work chamber, including pump means for pressurizing the cleaning agent; fluid timer means, in communication with the fluid transport means, for interrupting cleaning agent flow after a predetermined interval; wherein the fluid timer means includes a mechanical timer downstream of the pump means, having a timing period defined by a manual setting thereof, to dead head the pump means after the end of the timing period.
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25. An apparatus comprising:
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a work chamber into which may be placed an object to be cleaned, and a cover to enclose the work chamber; fluid transport means for carrying cleaning agent to the work chamber, including pump means for pressurizing the cleaning agent; fluid timer means, in communication with the fluid transport means, for interrupting cleaning agent flow after a predetermined interval; including a safety can remote from the work chamber and a check valve located upstream of the safety can, the pump means operative to develop a suction to draw cleaning agent from the safety can through a pipe connected thereto into the work chamber. - View Dependent Claims (26, 27)
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Specification