Sump for lint screen cleaner and storage system for a dryer

• US 4,462,170 A
• Filed: 05/21/1982
• Issued: 07/31/1984
• Est. Priority Date: 05/21/1982
• Status: Expired due to Fees

• Current Assignee: Whirlpool Corporation
• Original Assignee: Whirlpool Corporation
• Inventors: Kretchman, Gerald L., Burkall, Alvin E.
• Primary Examiner(s): Schwartz, Larry I.
• Assistant Examiner(s): Westphal, David W.
• Application Number:
  US06/380,831
• Time in Patent Office: 802 Days
• Field of Search: 34/82, 34/133, 55/290, 55/430, 55/431
• US Class Current: 34/82
• CPC Class Codes: D06F 58/22 Lint collecting arrangements

Abstract

An automatic lint screen cleaner in an automatic dryer is provided with a foreign objects sump which provides a means for removing foreign objects from the area of the lint screen cleaner while preventing lint build up in the sump.

Claims

1. In a dryer having a cabinet having a drum for tumbling a clothes load and a blower means for circulating heated air through said clothes load to an air flow passage, an automatic lint screen cleaner and storage mechanism for separating lint from said circulating air, said mechanism comprising:

a cylindrical lint screen in said air flow passage, said lint screen having an outer surface for collecting lint carried by said air on said outer surface of said lint screen;

a stationary wiper means mounted adjacent to and in frictional contact with said outer surface for separating said collected lint from said screen;

lint passage means surrounding a portion of said screen for directing said separated lint to a storage container; and

a foreign objects sump adjacent said lint screen, said sump in fluid communication with said air flow passage and including a lower portion, said lower portion having wall means forming an opening for the passage of foreign objects into said cabinet from said mechanism, said blower means drawing air from cabinet into said mechanism through said wall means opening.

2. The device of claim 1 wherein said drum has discharge openings for said circulated air and said lower opening in said sump is approximately the same size as said discharge opening in said drum.

3. For use in an automatic clothes dryer having a cabinet, a rotatable drum for carrying a clothes load, a blower means for circulating air through said drum and forming an air flow path, a lint screen cleaner and storage mechanism for removing lint from said air flow comprising:

a box frame housing forming a part of said air flow path between said drum and said blower;

a rotatable lint screen mounted in said box frame;

means for removing collected lint from said lint screen; and

sump means adjacent said lint screen for collecting foreign objects carried in said air flow,

said sump means being formed as a portion of said box frame and being cone shaped tapering downwardly to a single opening,

said blower means creating a low pressure zone in said box frame,

whereby air is continuously drawn upwardly through said sump means and collected foreign objects fall downwardly through said opening.

4. The device of claim 3 wherein said drum has a plurality of discharge openings for said circulated air and said sump opening has approximately the same size as one of said discharge openings in said drum.

5. For use in an automatic dryer having a lint collecting mechanism comprising:

a lint screen and wiper blade,

a sump positioned adjacent to said lint collecting mechanism to provide a means for removing foreign objects from the area of said mechanism,

said sump having a relatively large top opening and small bottom opening,

wherein air is drawn upwardly through said bottom opening and collected foreign objects fall downwardly through said sump and through said opening.