Door and drain control interlock

Claim 2

A dishwasher comprising: a cabinet defining a cavity into which items to be cleaned are placed and an access opening into said cavity, a washing fluid reservoir in said cabinet beneath said cavity for holding washing fluid for the dishwasher, means for draining said washing fluid reservoir, a door mounted on said cabinet for covering said opening, and interlock means, responsive to the closing of said door when said means for draining is open, for closing said means for draining and permitting opening of said door without affecting said means for draining.

Claim 3

A dishwasher according to claim 1 wherein said interlock means includes manually operable means within said cavity for opening said means for draining when said door is open.

Claim 4

A dishwasher comprising: means defining a chamber into which dishes are loaded for washing and rinsing, washing and rinsing apparatus in said chamber, means defining an access opening into said chamber,

Claim 5

A dishwasher comprising: means defining a chamber into which dishes are loaded for washing and rinsing, washing and rinsing apparatus in said chamber, means defining an access opening into said chamber,

Claim 6

door means for covering said opening during operation of the dishwasher, reservoir means in the bottom of said chamber for receiving and collecting wash and rinse fluid, a drain opening at the bottom of said reservoir means for draining said reservoir, standpipe closure means, communicating with said drain opening for closing said drain opening while permitting overflow fluid in said reservoir to flow into said drain opening through said standpipe when in a first position and for opening said drain opening and allowing the entire reservoir to be drained when in a second position, means for manually operating said standpipe closure means between said first and second positions when said door means is open, and means for moving said standpipe closure means into said first position automatically when said door means covers said opening.

Claim 7

door means for covering said opening during operation of the dishwasher, reservoir means in the bottom of said chamber for receiving and collecting wash and rinse fluid, a drain opening at the bottom of said reservoir means for draining said reservoir, standpipe closure means, communicating with said drain opening for closing said drain opening while permitting overflow fluid in said reservoir to flow into said drain opening through said standpipe when in a first position and for opening said drain opening and allowing the entire reservoir to be drained when in a second position, means for manually operating said standpipe closure means between said first and second positions when said door means is open, and means for moving said standpipe closure means into said first position automatically when said door means covers said opening.

Claim 8

In a washer having a wash chamber, an access opening, a door therefor, a sump for holding cleaning liquid, a liquid spray system for directing cleaning liquid onto articles in said chamber, means for recirculating said cleaning liquid from said sump through said spray system, a drain opening in the bottom of said sump, a drain closure for said drain opening movable between a first position in which said drain opening is open and a second position in which said drain opening is closed, and manually operable means for moving said drain closure between said first and second positions, the improvement in said means for moving said drain closure comprising: means operatively interconnecting said drain closure and said door for moving said drain closure, if in its first position, to said second position in response to the closing of said door independently of operation of said manually operable means.

Claim 9

In a washer having a wash chamber, an access opening, a door therefor, a sump for holding cleaning liquid, a liquid spray system for directing cleaning liquid onto articles in said chamber, means for recirculating said cleaning liquid from said sump through said spray system, a drain opening in the bottom of said sump, a drain closure for said drain opening movable between a first position in which said drain opening is open and a second position in which said drain opening is closed, and manually operable means for moving said drain closure between said first and second positions, the improvement in said means for moving said drain closure comprising: means operatively interconnecting said drain closure and said door for moving said drain closure, if in its first position, to said second position in response to the closing of said door independently of operation of said manually operable means.

Claim 10

A washer according to claim 4 wherein said means operatively interconnecting said drain closure and said door comprises a lost motion connection enabling opening of said door without affecting said drain closure.

Claim 11

In a washer having a wash chamber, an access opening, a door closure means for closing said access opening, a sump for holding cleaning liquid, a liquid spray system for directing cleaning liquid onto articles in said chamber, means for recirculating said cleaning liquid from said sump through said spray system, drain means in the bottom of said sump having an open position in which said sump is drained and a closed position, and manually operable latch means for latching said drain means into said open position, the improvement in said latch means comprising: latch release means, responsive to said door closure means closing said access opening, for releasing said latch means if said drain means is in said open position, thereby closing said drain means whenever said door closure means covers said access opening.

Claim 12

In a washer having a wash chamber, an access opening, a door closure means for closing said access opening, a sump for holding cleaning liquid, a liquid spray system for directing cleaning liquid onto articles in said chamber, means for recirculating said cleaning liquid from said sump through said spray system, drain means in the bottom of said sump having an open position in which said sump is drained and a closed position, and manually operable latch means for latching said drain means into said open position, the improvement in said latch means comprising: latch release means, responsive to said door closure means closing said access opening, for releasing said latch means if said drain means is in said open position, thereby closing said drain means whenever said door closure means covers said access opening.