Air inlet for a dishwashing apparatus

• US 4,195,419 A
• Filed: 09/06/1978
• Issued: 04/01/1980
• Est. Priority Date: 09/06/1978
• Status: Expired due to Term

• Current Assignee: Anvil Technologies LLC
• Original Assignee: Maytag Corporation (Whirlpool Corporation)
• Inventors: Quayle, Lawrence L.
• Primary Examiner(s): Favors, Edward G.
• Application Number:
  US05/940,029
• Time in Patent Office: 573 Days
• Field of Search: 34/221, 34/227, 34/231, 34/54, 134/94, 134/102, 134/183
• US Class Current: 34/231
• CPC Class Codes: A47L 15/488 Connections of the tub with the ambient air, e.g. air intake or venting arrangements

Abstract

A dishwashing apparatus has an air inlet conduit located in the bottom wall of the washing chamber. A forced air circulation apparatus is attached to a support bracket on the air inlet conduit from the outside of the washing chamber through a partial turn rotary motion. The air circulation apparatus is locked in this attached position by tightening a threaded fastener from within the washing chamber.

Claims

1. An air inlet system for a dishwashing apparatus having means including a tub for defining a washing chamber and a component compartment below said chamber, the combination comprising:

an air inlet assembly forming an airflow path into said chamber;

an air circulation means removably supported on said air inlet assembly; and

support structure including overlapping bracket means on said air inlet assembly and said air circulation means for supporting said air circulation means, said support structure further including means accessible from within said chamber for operatively locking said air circulation means to said air inlet assembly and to said apparatus.

2. An air inlet system as defined in claim 1 wherein said means for locking includes a threaded fastener extending into said support structure from within said chamber and cooperable with said support structure for retaining said air circulation means to said air inlet assembly and to said apparatus.

3. An air inlet system as defined in claim 1 wherein said bracket means are engageable upon a partial turn movement therebetween and wherein said means accessible within said chamber is operable for locking the connection whereby said air circulation means is effectively supported by said tub through said support structure and said means for locking.

4. An air inlet system for a dishwashing apparatus having means including a tub defining a front-opening dishwashing chamber and a front-opening component compartment below said chamber, the combination comprising:

an air inlet conduit forming an airflow path into said chamber;

an air circulation means disposed in said compartment in communication with said air inlet conduit for introducing air into said chamber and accessible for assembly and disassembly from the front of said dishwashing apparatus through a partial turn rotary movement;

support structure engageable with said air circulation means for removably supporting said air circulation means on said apparatus; and

fastener means accessible from within said chamber for locking said air circulation means to said apparatus through said support structure.

5. An air inlet system as defined in claim 4 wherein said air inlet conduit further includes guide means on that portion of said conduit extending through to said compartment for guiding and aligning said air circulation means with the axis of said air inlet conduit.

6. An air inlet system as defined in claim 4 wherein said support structure includes a bracket engageable with said air circulation means and cooperable with said fastener means for locking said air circulation means to said apparatus.

7. An air inlet system for a front-opening dishwashing apparatus including a tub having a bottom wall and defining a washing chamber for use in washing and drying dishes and further including means defining a front-opening component compartment below said chamber, the combination comprising:

an air inlet conduit for establishing an airflow path into said chamber;

motor driven forced air circulation means disposed in said compartment and cooperable with said conduit for forcing ambient-temperature airflow into said chamber when drying said dishes and removably mounted to said bottom wall from the front through a partial turn rotary movement of said forced air circulation means;

guide means on that portion of said conduit extending into said compartment, said guide means being operable for facilitating alignment of said forced air circulation means with the axis of said conduit during said mounting;

a support bracket associated with said conduit and said bottom wall for engaging with and supporting said forced air circulation means on said tub; and

locking means cooperable with said support bracket for locking said forced air circulation means to said tub from within said chamber.

8. An air inlet system as defined in claim 7 wherein said locking means includes a threaded member extending through said bottom wall of said tub and into said support bracket for clamping said forced air circulation means between said bottom wall and said support bracket to effectively support said forced air circulation means on said tub.

9. An air inlet system as defined in claim 8 wherein said forced air circulation means includes a bracket having a notched tab for engaging with said threaded member to accomplish said clamping.

10. An air inlet system for a dishwashing apparatus having means including a tub for defining a washing chamber and a compartment below said chamber with said tub having a bottom wall defining an opening to receive air inlet means, the combination comprising:

an air inlet housing extending from said chamber through said bottom wall opening into said compartment and defining an airflow path into said chamber, said housing including an intermediate outer support shoulder disposed within said chamber adjacent said bottom wall and further including a portion depending into said compartment;

holding means engageable with said depending portion and cooperable with said support shoulder for attaching said inlet housing to said bottom wall;

a support bracket assembled on said depending portion and including an annular ring portion retained between said bottom wall and said holding means and further including a downwardly projecting leg portion;

an air circulation assembly supported on said leg portion for communication with said airflow path and operable for effecting an airflow into said chamber;

diffuser means in said chamber on said inlet housing for directing and spreading said airflow; and

locking means adjacent said diffuser means for access in said chamber and extending through said bottom wall for engagement with said support bracket to operatively lock said air circulation assembly to said apparatus.

11. An air inlet system for a dishwashing apparatus as in claim 10 wherein said depending portion of the inlet housing includes a guide portion to facilitate axial alignment of the air circulation assembly with said housing and wherein said leg portion includes means to receive said air circulation assembly through an axial and partial turn rotary motion.

12. An air inlet system for a dishwashing apparatus as in claim 10 and further including a normally closed valve associated with said inlet housing for closing said airflow path.