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US 4,900,006 AGranted
Tangential approach, low noise paddle wheel drive
AssigneeXerox Corporation
InventorBarry P. Mandel
Life of this patent
Estimating the term…
Abstract
A low noise paddle wheel system includes a paddle wheel and a fork shaped deflector that forces blades on the paddle wheel to approach the impact surface of a tray over which the paddle wheel is mounted tangentially in order to reduce or diminish noise created by the blades striking either copy sheets in the tray or the copy sheet support surface of the tray.
Claims12
A finisher apparatus, comprising:
- compiling tray means:
- paddle wheel means having blades thereof positioned with respect to said compiling tray means for driving sheets within said compiling tray means;
- pin means positioned within each of said blades of said paddle wheel means;
- and
- deflector means positioned for riding each of said pins during a portion of rotation of said paddle wheel means such that said blades are deflected before contacting the surface of said compiling tray means, whereby noise generated by said blades of said paddle wheel contacting sheets within said compiling tray is diminished.
2 more elements
A low noise paddle wheel sheet manipulating system, comprising:
- a sheet support surface;
- paddle wheel means positioned above said sheet support surface for manipulating sheets upon said sheet support surface, said paddle wheel means including at least one blade having a pin positioned in a portion thereof;
- and
- deflector means for deflecting said blades of said paddle wheel means by intercepting said pins in said blades of said paddle wheel means to thereby alter the angle at which said blades strike a sheet on the surface of said sheets support surface or the sheet support surface itself.
1 more element
A low noise sheet manipulating system, comprising:
- a sheet support surface;
- a paddle wheel including at least one blade and rotatably positioned above said sheet support surface;
- at least one pin alters the contact angle of said blades of said paddle wheel;
- and
- a deflector that alters the contact angle of said blades of said paddle wheel with said sheet support or sheets upon said sheet support surface due to contact of said pins with said deflector.
2 more elements
Dependencies are inferred from the claim text.