Clothes drier with variable speed centrifuge and heat supply

• US 3,186,104 A
• Filed: 05/26/1955
• Issued: 06/01/1965
• Est. Priority Date: 05/26/1955
• Status: Expired due to Term

• Current Assignee: William E. Stilwell Jr
• Original Assignee: William E. Stilwell Jr
• Inventors: Stilwell, William E. Jr.
• Application Number:
  US03/511,186
• Time in Patent Office: 3,659 Days
• US Class Current: 34/527
• CPC Class Codes: D06F 2103/32 Temperature
• CPC Class Codes: D06F 2103/38 Time, e.g. duration
• CPC Class Codes: D06F 2105/48 Drum speed
• CPC Class Codes: D06F 2105/56 Remaining operation time; Remaining operational cycles
• CPC Class Codes: D06F 34/06 Timing arrangements
• CPC Class Codes: D06F 35/007 for spin-drying only
• CPC Class Codes: D06F 37/20 Mountings, e.g. resilient mountings, for the rotary receptacle, motor, tub or casing; Preventing or damping vibrations
• CPC Class Codes: D06F 37/36 for rotating the receptacle at more than one speed D06F37/304, D06F37/308 take precedence
• CPC Class Codes: D06F 58/40 Control of the initial heating of the drying chamber to its operating temperature

Claims

5. IN A LAUNDERING MACHINE, A ROTATABLE RECEPTACLE, MEANS FOR ROTATING SAID RECEPTACLE, AN AIR CIRCULARTORY SYSTEM FOR SAID RECEPTACLE, HEATING ELEMENTS OF HIGH AND LOW RATING IN SAID AIR CIRCULATORY SYSTEM, A MOTOR DRIVEN TIME CONTROL DEVICE IN THE CIRCUIT OF SAID HEATERS, THERMOSTATIC MEANS IN SAID CIRCUIT FOR ENERGIZING THE MOTOR OF THE TIME CONTROL DEVICE, AND MEANS IN SAID CIRCUIT FOR CONNETING THE HEATERS FOR SIMULTANEOUSLY PRODUCING MAXIMUM HEAT AT THE BEGINNING OF THE DRYING CYCLE AFTER WHICH THE TIMER MOTOR IS INTERRUPTED BY THE MOTOR DRIVEN DEVICE AND REENERGIZED BY THE THERMOSTATIC MEANS AFTER A LENGTH OF TIME WHEN THE CIRCULATED AIR REACHES A PREDETERMINED TEMPERATURE WHICH ADVANCES THE CONTROL DEVICE TO CUT OUT THE HEATING ELEMENT OF LOW RATING AND FOR STOPPING THE TIMER MOTOR, WHICH THERMOSTATIC MEANS AFTER A LENGTH OF TIME AGAIN RE-ENERGIZES THE TIMER MOTOR WHICH CUTS OUT THE HEATER OF HIGH RATING AND CUTS IN THE HEATER OF LOW RATING, PERMITTING THE MACHINE TO PERFORM A RUN-OUT CYCLE THEREAFTER TERMINATED BY THE FINAL INTERRUPTION OF THE TIMER MOTOR.