Claims
- 1. A dishwasher, comprising:
- (a) a base;
- (b) a closure housing carried by said base;
- (c) a rack rotatably mounted within said housing, said rack being adapted to support articles to be washed;
- (d) jet means adapted for interconnection with sources of hot and cold water under pressure for directing jets of water in the direction of said rack to impart rotational movement thereto, said jet means comprising:
- (1) a first collimated jet means for emitting a collimated stream of cold water in the direction of said rack for initiating rotation of said rack;
- (2) a second spray jet means for emitting jets of cold water in the direction of said rack for sustaining rotation thereof;
- (3) a third spray jet means for emitting jets of hot water in the direction of said rack for cooperating with said second spray means to sustain rotation of said rack; each of said second and third spray jet means comprising at least one apertured conduit disposed within said closure housing proximate said rack; and
- (4) control means for controllably and simultaneously regulating the flow of water between said first collimated jet means and said second spray jet means whereby a stream of cold water can be directed at said rack with sufficient velocity to initiate rotation thereof.
- 2. A dishwasher as defined in claim 1 in which said rack includes a lower portion and in which said control means comprises valve means for regulating the flow of water between said first collimated jet means and said second spray jet means in such a manner that a continuous stream of cold water can be directed from said collimated jet means toward said lower portion of said rack during rotation thereof.
- 3. A dishwasher as defined in claim 2 in which said valve means includes a valve housing carried by said base externally of said closure housing, said valve housing having:
- (a) a water inlet adapted to be connected to said source of cold water;
- (b) a first water outlet connected to said second spray jet means;
- (c) a second water outlet connected to said collimated jet means;
- (d) an internal valve seat disposed between said water inlet and said second water outlet;
- (e) a valve stem movable from a first position wherein said valve seat is closed to fluid flow to a second position wherein said valve seat is open to fluid flow;
- (f) biasing means for yieldably urging against movement of said valve stem from a first to a second position; and
- (g) means for preventing said valve stem from moving to said second position.
- 4. A dishwasher as defined in claim 3 in which said means for preventing said valve stem from moving to said second position comprises means carried by said housing for adjustably positioning said valve stem relative to said internal valve seat.
- 5. A dishwasher as defined in claim 4 including dosing means disposed intermediate said source of hot water and said third spray jet means for metering an emulsifier into said stream of hot water flowing through said third spray jet means.
- 6. A dishwasher adapted to be interconnected with a source of domestic hot water and a source of domestic cold water comprising:
- (a) a base;
- (b) a closure housing carried by said base;
- (c) a rack rotatably mounted with said housing, said rack being adapted to support articles to be washed;
- (d) jet means for directing a jet of cold water in the direction of said rack to impart rotational movement thereto, said jet means comprising:
- (1) a first collimated jet means for emitting a collimated stream of cold water in the direction of said rack for initiating rotation of said rack; and
- (2) a second spray jet means for emitting jets of cold water in the direction of said rack and a third spray jet means for emitting jets of hot water in the direction of said rack, said second and third spray jet means cooperating to sustain rotation of said rack; each of said second and third spray jet means comprising a first conduit extending beneath said rack, a second generally vertically extending conduit and a third conduit interconnected with said second conduit and extending above said rack, said second and third conduits being angularly adjustable relative to said rack;
- (3) generally cylindrically shaped valve housing carried by said base externally of said closure housing, said valve housing having:
- (i) a water inlet adapted to be connected with said source of cold water;
- (ii) a first water outlet connected to said spray jet means;
- (iii) a second water outlet connected to said collimated jet means; and
- (iv) an internal valve seat disposed between said water inlet and said second water outlet;
- (4) control means for controllably and simultaneously regulating the flow of cold water between said first collimated jet means and said second spray jet means whereby a stream of water can be directed at said rack with sufficient velocity to initiate rotation thereof, said control means comprising a valve assemblage carried within said valve housing, said valve assemblage comprising:
- (i) a valve stem having upper and lower extremities, said valve stem being movable from a first position to a second position and including a tapered surface located intermediate its extremities, said tapered surface being adapted to sealably engage said internal valve seat when said valve stem is in a first position; and
- (ii) biasing means for yieldably urging against movement of said valve stem from a first to a second position.
- 7. A dishwasher as defined in claim 6 in which said control means further comprises override means carried by said valve housing for overriding said biasing means to prevent movement of said valve stem to said first position whereby a continuous stream of cold water will be directed by said collimated jet means toward said rack.
- 8. A dishwasher adapted to be operably interconnected with sources of hot and cold water under pressure, comprising:
- (a) a base;
- (b) a closure housing carried by said base said closure housing comprising a first fixed portion mounted on said base and a second movable portion carried by said base and rotatable with respect to said first portion;
- (c) a rack rotatably mounted within said housing, said rack being adapted to support articles to be washed; and
- (d) jet means for directing a jet of cold water in the direction of said rack to impart rotational movement thereto, said jet means comprising:
- (1) a first collimated jet means for emitting a collimated stream of cold water in the direction of said rack at a first velocity for initiating rotation of said rack and for emitting a continuous collimated stream of cold water in the direction of said rack at a second velocity;
- (2) second and third spray jet means for sustaining rotation of said rack; said second means directing cold water in the direction of said rack and said third means directing hot water in the direction of said rack; and
- (3) a valve housing carried by said base externally of said closure housing, said valve housing having:
- (i) a cold water inlet;
- (ii) a first water outlet connected to said second spray jet means;
- (iii) a second water outlet connected to said collimated jet means; and
- (iv) an internal valve seat disposed between said water inlet and said second water outlet;
- (4) control means for controllably and simultaneously regulating the flow of water between said first collimated jet means and said second spray jet means, said control means comprising a valve assemblage carried within said valve housing, said valve assemblage comprising:
- (i) a valve stem movable from a first position to a second position to sealably engage said internal valve seat when said valve stem is in a first position; and
- (ii) biasing means for yieldably urging against movement of said valve stem from a first to a second position;
- said control means further including means operably associated with said valve stem for preventing said valve stem from moving to a first position whereby cold water will continuously flow past said internal valve seat.
Parent Case Info
This application is a continuation-in-part application of my co-pending application Ser. No. 441,384, filed Nov. 12, 1982, and now U.S. Pat. No. 4,444,213, which was in-turn a continuation-in-part application of my application Ser. No. 205,710, filed Nov. 13, 1980, and now U.S. Pat. No. 4,368,747.
US Referenced Citations (7)
Foreign Referenced Citations (3)
Number |
Date |
Country |
15250 |
Jan 1956 |
DEX |
1503825 |
Oct 1969 |
DEX |
2647356 |
May 1977 |
DEX |
Continuation in Parts (2)
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Number |
Date |
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Parent |
441384 |
Nov 1982 |
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Parent |
205710 |
Nov 1980 |
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