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US5616897A Expired / Lapsed US ⏱️ 0.0 years remaining

Flexible keyboard

Assignee: Individual
•
Filing: 1995-02-02
•
Granted: 1997-04-01
•
Expires: 2015-02-02
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Abstract

Abstract A flexible or roll-up electronic keyboard is provided for use with electronic devices. The keyboard is formed with a plurality of section of flexible plastic materials and embodies a dual-walled bottom which includes a network of support members which can be inflatable to provide a rigidity to the structure of the keyboard sufficient to prevent false signals. At least one separately inflatable accordion-pleated wedge means is also provided to enable variable adjustment of the plane or planes of the keyboard relative to the hands of its operator, sufficient to reduce the risk of nerve disorders such as carpal tunnel syndrome in the operator.

Inventors

  • 👤 Michael R. Weber
  • 👤 Paul J. Weber

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-09 21:30
CPC Classifications
G; G06; G06F; G06F3/00; G06F3/01; G06F3/02; G06F3/0202; G06F3/0216; G06F3/0208; G06F3/0221; H; H01; H01H; H01H13/00; H01H13/70; H01H13/702; H01H2217/00; H01H2217/028; H01H2217/044; H01H2223/00; H01H2223/046; H01H2223/05; H01H2223/052

Claims Analysis

Total Claims: 21
Claim 1
Independent Claim 154 words
A flexible or roll-up electronic keyboard assembly for electronic devices which comprises: a first section comprising a thin planar sheet of flexible and resilient non-conductive plastic or polymeric material having an indicia array; a second section comprising a circuit pattern containing an upper array of deformable contacts which are arranged in a matrix pattern; a third section comprising a non-conductive flexible and resilient plastic or polymeric spacer with openings corresponding to the array of deformable contacts in said second section; a fourth section comprising a non-conductive flexible and resilient plastic or polymer comprising a lower array and arranged in apposition to said second section and electrically connectable thereto connected; and a fifth bottom section comprising two overlaid layers of a non-conductive flexible and resilient plastic or polymer overlaid and bonded to form a network of substantially rigid gas filled support members when inflated; and at least one gas conduit communicating with said support members.
Claim 2
Dependent Claim 154 words
A flexible or roll-up electronic keyboard assembly for electronic devices which comprises: a first section comprising a thin planar sheet of flexible and resilient non-conductive plastic or polymeric material having an indicia array; a second section comprising a circuit pattern containing an upper array of deformable contacts which are arranged in a matrix pattern; a third section comprising a non-conductive flexible and resilient plastic or polymeric spacer with openings corresponding to the array of deformable contacts in said second section; a fourth section comprising a non-conductive flexible and resilient plastic or polymer comprising a lower array and arranged in apposition to said second section and electrically connectable thereto connected; and a fifth bottom section comprising two overlaid layers of a non-conductive flexible and resilient plastic or polymer overlaid and bonded to form a network of substantially rigid gas filled support members when inflated; and at least one gas conduit communicating with said support members.
Claim 3
Dependent Claim 40 words
The keyboard assemble of claim 1 wherein said second and fourth sections are provide with edge connectors which are connected by a circuit pattern to a microprocessor or alternately to other support circuitry having suitable connection to an electronic device.
Claim 4
Dependent Claim 28 words
The keyboard assembly of claim 1 in which each section comprises a non-conductive flexible and resilient polymer selected from the group of polyvinyl chloride, polysiloxane, polyurethane and polyester.
Claim 5
Dependent Claim 27 words
The keyboard assembly of claim 1 wherein said first section has a plurality of flexible molded keys; and the indicia array consists of a full alphanumeric layout.
Claim 6
Dependent Claim 21 words
The keyboard assembly of claim 1 comprising tough contact switches having a stroke height of from about 1 to 4 mm.
Claim 7
Dependent Claim 16 words
The keyboard assembly of claim 1 wherein said sections are sealed so as to be waterproof.
Claim 8
Dependent Claim 21 words
The keyboard assembly of claim 1 including an elastomeric layer of key covers for providing a tactile feel to said keys.
Claim 9
Dependent Claim 22 words
The keyboard assembly of claim 1, wherein said assembly comprises the shape of a curved, substantially rigid, but slightly deformable, contoured monolith.
Claim 10
Dependent Claim 20 words
The keyboard assembly of claim 1, wherein said assembly comprises two substantially planar halves joined by a deformable accordion-pleated midsection.
Claim 11
Dependent Claim 21 words
The keyboard assembly of claim 1, wherein said assembly comprises two substantially planar halves detachably joined together at the midsection thereof.
Claim 12
Dependent Claim 53 words
The keyboard assembly of claim 1, wherein a variable inflatable/deflatable wedge means is positioned and fixed to the bottom thereof so as to variably orient the plane or planes of said keyboard relative to the hands of the operator thereof, sufficient to substantially reduce the risk of carpal tunnel syndrome to said operator.
Claim 13
Dependent Claim 20 words
The keyboard assembly of claim 11, wherein said inflatable/deflatable wedge means is permanently fixed to the bottom of said assembly.
Claim 14
Dependent Claim 20 words
The keyboard assembly of claim 12, wherein said inflatable/deflatable wedge means is detachably fixed to the bottom of said assembly.
Claim 15
Dependent Claim 78 words
In an electronic keyboard assembly for computers including a first flexible section having deformable contacts, a second flexible section having deformable contacts, and a third section which forms a spacer therebetween, the improvement which comprises a bottom section consisting of two overlaid layers of a non-conductive flexible and resilient plastic or polymer overlaid and bonded to form a network of substantially rigid gas filled support members when inflated, and at least one gas conduit communicating with said members.
Claim 16
Dependent Claim 78 words
In an electronic keyboard assembly for computers including a first flexible section having deformable contacts, a second flexible section having deformable contacts, and a third section which forms a spacer therebetween, the improvement which comprises a bottom section consisting of two overlaid layers of a non-conductive flexible and resilient plastic or polymer overlaid and bonded to form a network of substantially rigid gas filled support members when inflated, and at least one gas conduit communicating with said members.
Claim 17
Dependent Claim 53 words
The keyboard assembly of claim 14, wherein a variable inflatable/deflatable wedge means is positioned and fixed to the bottom thereof so as to variably orient the plane or planes of said keyboard relative to the hands of the operator thereof, sufficient to substantially reduce the risk of carpal tunnel syndrome to said operator.
Claim 18
Dependent Claim 20 words
The keyboard assembly of claim 14, wherein said assembly comprises two substantially planar halves joined by a deformable accordion-pleated midsection.
Claim 19
Dependent Claim 21 words
The keyboard assembly of claim 14, wherein said assembly comprises two substantially planar halves detachably joined together at the midsection thereof.
Claim 20
Dependent Claim 172 words
The combination of a flexible or roll-up electronic keyboard assembly for electronic devices which comprises: a first section comprising a thin planar sheet of flexible and resilient non-conductive plastic or polymeric material having an indicia array; a second section comprising a circuit pattern containing an upper array of deformable contacts which are arranged in a matrix pattern; a third section comprising a non-conductive flexible and resilient plastic or polymeric spacer with openings corresponding to the array of deformable contacts in said second section; a fourth section comprising a non-conductive flexible and resilient plastic or polymer comprising a lower array and arranged in apposition to said second section and electrically connectable thereto connected; a fifth bottom section comprising two overlaid layers of a non-conductive flexible and resilient plastic or polymer overlaid and bonded to form a network of substantially rigid gas filled support members when inflated; at least one gas conduit communicating with said support members; and one of the group consisting of a musical instrument, a toy, a computer and a telephone.
Claim 21
Dependent Claim 172 words
The combination of a flexible or roll-up electronic keyboard assembly for electronic devices which comprises: a first section comprising a thin planar sheet of flexible and resilient non-conductive plastic or polymeric material having an indicia array; a second section comprising a circuit pattern containing an upper array of deformable contacts which are arranged in a matrix pattern; a third section comprising a non-conductive flexible and resilient plastic or polymeric spacer with openings corresponding to the array of deformable contacts in said second section; a fourth section comprising a non-conductive flexible and resilient plastic or polymer comprising a lower array and arranged in apposition to said second section and electrically connectable thereto connected; a fifth bottom section comprising two overlaid layers of a non-conductive flexible and resilient plastic or polymer overlaid and bonded to form a network of substantially rigid gas filled support members when inflated; at least one gas conduit communicating with said support members; and one of the group consisting of a musical instrument, a toy, a computer and a telephone.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 2000-03-31 2000-09-30 2001-04-01 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2004-03-31 2004-09-30 2005-04-01 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2008-03-31 2008-09-30 2009-04-01 $7700.00 Window Closed / Lapsed

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