Combination drying unit

• US 6,128,826 A
• Filed: 02/05/1999
• Issued: 10/10/2000
• Est. Priority Date: 02/05/1999
• Status: Expired due to Fees

• Current Assignee: The Dual Dryer Corporation
• Original Assignee: The Dual Dryer Corporation
• Inventors: Robinson, Joe M.
• Primary Examiner(s): Gravini, Stephen
• Assistant Examiner(s): Joyce, Andrea M.
• Application Number:
  US09/245,368
• Time in Patent Office: 613 Days
• Field of Search: 34/90, 34/91, 34/427, 392/380
• US Class Current: 34/90
• CPC Class Codes: A47K 10/485 combined with a textile or paper towel dispenser

Abstract

A combination drying unit has a towel roll rotatably held within a housing. By activation of a switch, a motor drives a drive roller that has an idler roller biased thereagainst for advancing the paper towel stream through a first opening of the housing. A blower is also disposed within the housing and blows a stream of air through at least one second opening on the housing. A sensor activates the motor and the blower. A sensor detects the presence of a towel stream and deactivates the motor until this sensor no longer detects the paper towel stream. Another sensor detects the absence of a towel stream, deactivates the motor, and increases the length of operation of the blower upon activation of the switch. This sensor also illuminates a service light indicating either a jam condition or an out of paper condition.

Claims

1. A combination drying unit for dispensing an air stream and dispensing a towel stream from a towel roll comprising:

a housing having a first opening and a second opening;

a pair of spaced apart rods for holding the towel roll;

a first roller rotatably disposed within the housing;

a motor operationally connected to the first roller for rotating the first roller;

a second roller rotatably disposed within the housing;

a blower, for dispensing the air stream through the first opening, disposed within the housing;

a first switch for activating the motor for a first length of time and activating the blower for a second length of time upon activation of the first switch.

2. The combination drying unit as in claim 1 further comprising a sensor, disposed within the housing, for detecting the towel stream and when the sensor detects the towel stream, the sensor deactivates the motor.

3. The combination drying unit as in claim 1 further comprising a sensor, disposed within the housing, for detecting the towel stream and when the sensor fails to detect the towel stream, the sensor deactivates the motor.

4. The combination drying unit as in claim 3 further comprising a light that is activated whenever the sensor fails to detect the presence of the towel stream.

5. The combination drying unit as in claim 3 wherein the blower is activated for an additional third length of time upon activation of the first switch whenever the sensor fails to detect the presence of the towel stream.

6. The combination drying unit as in claim 1 further comprising a second switch for activating the motor.

7. The combination drying unit as in claim 1 further comprising a second switch, operatively connected to the motor, such that upon depression of the second switch, the motor is activated an additional third length of time upon activation of the first switch.

8. The combination drying unit as in claim 7 wherein the third length of time is negative.

9. The combination drying unit as in claim 1 further comprising a serrated edge disposed within the housing proximate the second opening.

10. The combination drying unit as in claim 1 wherein the first switch comprises a sensor.

11. The combination drying unit as in claim 1 further comprising a heating element, located proximate the blower, for heating the air stream produced by the blower.

12. The combination drying unit as in claim 1 further comprising at least one spring disposed within the housing for biasing the second roller toward the first roller.