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US4975802A Expired / Lapsed US ⏱️ 0.0 years remaining

Electrostatic adsorbing apparatus having electrostatic adsorbing plate for adsorbing and laminating a plurality of objects to be adsorbed

Assignee: Abisare Co Ltd
•
Filing: 1989-05-25
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Granted: 1990-12-04
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Expires: 2009-05-25
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Abstract

Abstract An electrostatic adsorbing apparatus includes an electrostatic adsorbing plate for adsorbing and laminating a plurality of objects. The adsorbing apparatus has a set of electrodes and the electrostatic adsorbing plate adsorbs and holds sheet-shaped objects by an electrostatic adsorbing force induced by the set of electrodes. The electrodes are arranged like a comb in the electrostatic adsorbing plate, and a plurality of adsorbing portions which extend in the horizontal direction are formed on the surface of the electrostatic adsorbing plate so as to adsorb and laminate a plurality of the sheet-shaped objects such that upper end portions of the objects are slightly vertically offset from each other.

Inventors

  • 👤 Keiji Kasahara

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-30 00:31
CPC Classifications
H; H02; H02N; H02N13/00; B; B42; B42F; B42F15/00; B42F15/06

Claims Analysis

Total Claims: 12
Claim 1
Independent Claim 113 words
In an electrostatic adsorbing apparatus having an electrostatic adsorbing plate for adsorbing and laminating a plurality of objects to be adsorbed, in which said adsorbing apparatus has a set of electrodes, and said electrostatic adsorbing plate adsorbs and holds sheet-shaped objects by an electrostatic adsorbing force induced by said set of electrodes, the improvement comprising said set of electrodes being arranged like a comb in the electrostatic adsorbing plate, and a plurality of horizontally extending adsorbing portions formed on the surface of the electrostatic adsorbing plate so as to adsorb and laminate a plurality of said sheet-shaped objects such that upper end portions of the objects are slightly vertically offset from each other.
Claim 2
Dependent Claim 113 words
In an electrostatic adsorbing apparatus having an electrostatic adsorbing plate for adsorbing and laminating a plurality of objects to be adsorbed, in which said adsorbing apparatus has a set of electrodes, and said electrostatic adsorbing plate adsorbs and holds sheet-shaped objects by an electrostatic adsorbing force induced by said set of electrodes, the improvement comprising said set of electrodes being arranged like a comb in the electrostatic adsorbing plate, and a plurality of horizontally extending adsorbing portions formed on the surface of the electrostatic adsorbing plate so as to adsorb and laminate a plurality of said sheet-shaped objects such that upper end portions of the objects are slightly vertically offset from each other.
Claim 3
Dependent Claim 36 words
The apparatus of claim 1, wherein said surface of said electrostatic adsorbing plate has a generally inclining configuration, said adsorbing portions being arranged on said adsorbing plate in a generally successively inclining relationship to one another.
Claim 4
Dependent Claim 132 words
In an electrostatic adsorbing apparatus having an electrostatic adsorbing plate for adsorbing and laminating a plurality of objects to be adsorbed, in which said adsorbing apparatus has a set of electrodes, and said electrostatic adsorbing plate adsorbs and holds sheet-shaped objects by an electrostatic adsorbing force induced by said set of electrodes, the improvement comprising said set of electrodes being arranged like a comb in the electrostatic adsorbing plate, a plurality of horizontally extending adsorbing portions formed on the surface of the electrostatic adsorbing plate in a generally vertical arrangement so as to adsorb and laminate a plurality of said sheet-shaped objects such that upper end portions of the objects are slightly vertically offset from each other, and an enclosing portion to temporarily enclose said sheet-shaped objects provided below said adsorbing portions.
Claim 5
Dependent Claim 132 words
In an electrostatic adsorbing apparatus having an electrostatic adsorbing plate for adsorbing and laminating a plurality of objects to be adsorbed, in which said adsorbing apparatus has a set of electrodes, and said electrostatic adsorbing plate adsorbs and holds sheet-shaped objects by an electrostatic adsorbing force induced by said set of electrodes, the improvement comprising said set of electrodes being arranged like a comb in the electrostatic adsorbing plate, a plurality of horizontally extending adsorbing portions formed on the surface of the electrostatic adsorbing plate in a generally vertical arrangement so as to adsorb and laminate a plurality of said sheet-shaped objects such that upper end portions of the objects are slightly vertically offset from each other, and an enclosing portion to temporarily enclose said sheet-shaped objects provided below said adsorbing portions.
Claim 6
Dependent Claim 46 words
The apparatus of claim 3, including a frame for supporting said adsorbing plate, said enclosing portion being pivotally supported on said frame for pivotal movement between a storage position generally parallel to said adsorbing plate and an inclined position generally inclined relative to said adsorbing plate.
Claim 7
Dependent Claim 31 words
The apparatus of claim 4, including means for releasably locking said enclosing portion against pivotal movement when said enclosing portion is at a desired inclined position relative to said adsorbing plate.
Claim 8
Dependent Claim 161 words
A portable electrostatic sheet-holding apparatus, comprising a leg structure adapted to be movingly supported on a floor, a frame structure fixed to and projecting upwardly from said leg structure and including a pair of sidewardly-spaced upright side frame elements, a main plate-like body extending between and being fixed to said side frame elements and being generally vertically oriented and defining thereon a generally vertically extending side surface, an electrostatic adsorbing plate overlying said side surface, said adsorbing plate having an interfitting set of comb-like electrodes for generating electrostatic holding force, and a plurality of horizontally extending adsorbing portions formed on the surface of said electrostatic adsorbing plate, said horizontally extending adsorbing portions being disposed in vertically adjacent relationship to one another so that a plurality of sheets can be attached to the electrostatic adsorbing plate in such manner that upper end portions of the sheets are individually electrostatically held against the respective adsorbing portions in vertically offset relationship to one another.
Claim 9
Dependent Claim 161 words
A portable electrostatic sheet-holding apparatus, comprising a leg structure adapted to be movingly supported on a floor, a frame structure fixed to and projecting upwardly from said leg structure and including a pair of sidewardly-spaced upright side frame elements, a main plate-like body extending between and being fixed to said side frame elements and being generally vertically oriented and defining thereon a generally vertically extending side surface, an electrostatic adsorbing plate overlying said side surface, said adsorbing plate having an interfitting set of comb-like electrodes for generating electrostatic holding force, and a plurality of horizontally extending adsorbing portions formed on the surface of said electrostatic adsorbing plate, said horizontally extending adsorbing portions being disposed in vertically adjacent relationship to one another so that a plurality of sheets can be attached to the electrostatic adsorbing plate in such manner that upper end portions of the sheets are individually electrostatically held against the respective adsorbing portions in vertically offset relationship to one another.
Claim 10
Dependent Claim 25 words
The apparatus of claim 6, including a sheet storage device mounted on said frame structure vertically below said adsorbing portions for temporarily storing sheets therein.
Claim 11
Dependent Claim 59 words
The apparatus of claim 7, wherein the storage device comprises an upwardly-opening box-like arrangement having closely-spaced front and rear walls defining a narrow sheet-storing space therebetween, said device extending horizontally between said side frame elements, and means supporting said storage device on said side frame elements for pivotal movement between a generally vertical orientation and a generally inclined orientation.
Claim 12
Dependent Claim 36 words
The apparatus of claim 6, wherein the adsorbing plate and the side surface of the main body are sloped at an angle of about 5° to about 15° relative to the vertical as they extend downwardly.

References Cited (Backward Citations)

US3582730A Cited
US3634740A Cited
US3892614A Cited
US3916270A Cited
US4667110A Cited
US4751609A Cited
US4766515A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1993-12-03 1994-06-04 1994-12-04 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1997-12-03 1998-06-04 1998-12-04 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2001-12-03 2002-06-04 2002-12-04 $7700.00 Window Closed / Lapsed

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