Severing by tearing or breaking – Severing by manually forcing against fixed edge – With feed-out of predetermined length from work supply
Reexamination Certificate
1998-07-06
2001-06-26
Peterson, Kenneth E. (Department: 3724)
Severing by tearing or breaking
Severing by manually forcing against fixed edge
With feed-out of predetermined length from work supply
C225S043000, C225S034000, C083S436150, C083S650000
Reexamination Certificate
active
06250530
ABSTRACT:
BACKGROUND OF THE INVENTION
This invention relates to a paper roll towel dispenser of the type which is capable of dispensing paper toweling and automatically dispensing paper from a reserve roll of toweling after a stub roll has been exhausted.
The invention provides a paper roll towel dispensing cabinet which includes a roll supporting cradle or bottom in which a stub roll is housed and a transfer mechanism which carries the free end of a reserve roll of paper toweling. After the stub roll is exhausted, the transfer mechanism operates automatically to dispense paper towel from the reserve roll of toweling. Such transfer assemblies in and of themselves are not new as disclosed in the Collins U.S. Pat. No. 5,400,982. However, most transfer mechanisms result in the transfer of toweling from both the reserve roll and the stub roll, whereas the present invention is designed such that the transfer mechanism only operates when the stub roll is exhausted.
The invention also relates to a method of dispensing toweling which is novel and conforms with the current ADA legislation for disabled persons. Additionally, the invention includes interior mechanism which provides for easy maintenance in the field, a desirable feature due to the fact that towel cabinets of the type set forth herein are commonly used in restaurant washrooms, gas station restrooms and other places where maintenance is sporadic and the level of skill of the maintenance people is not high.
SUMMARY OF THE INVENTION
Accordingly, an object of the invention is to provide a paper towel dispenser in which an actuator means is pivotally mounted on the cabinet housing outwardly of the housing and extends substantially across the entire housing at the bottom thereof.
Another object of the invention is to provide a towel dispenser with an actuator of the type set forth in which the pressure needed to dispense toweling is less than about 2 to 3 psi which is well below the ADA limit of 5 psi.
Another object of the invention is to provide a roller frame assembly pivotally mounted within the cabinet housing movable between the use position wherein a tension roller carried by the roller frame assembly is in contact with the paper web and urges same against a drive roller for dispensing the paper web from the cabinet and a maintenance position in which the roller frame assembly falls away from the drive roller permitting easy access to the interior of the towel cabinet for loading fresh rolls of toweling into the cabinet.
Yet another object of the invention is to provide a transfer roller for releasable holding the free end of a reserve roll of toweling which is transferred when the stub roll of toweling is exhausted.
The invention consists of certain novel features and a combination of parts hereinafter fully described, illustrated in the accompanying drawings, and particularly pointed out in the appended claims, it being understood that various changes in the details may be make without departing from the spirit, or sacrificing any of the advantages of the present invention.
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LaCount Kenneth H.
Paal Alan P.
Pierquet Alan J.
Stephan Diane L.
Welsch Todd G.
Alwin Manufacturing Co.
Emrich & -Dithmar
Peterson Kenneth E.
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