Patent US5648771A successfully refreshed from Google Patents.
US5648771A
Expired / Lapsed
US
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Wrist rest bag for flexible keyboard
Assignee: Cufer Asset Ltd LLC
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Filing: 1995-08-18
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Granted: 1997-07-15
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Expires: 2015-08-18
Abstract
Abstract The present invention includes a flexible, pressurizable keyboard made of resilient layers of plastic material, with molded keys which are deformable when pressed so as to send a signal to an electrical device. The keys are arranged with a flexible electrical circuit thereattached, which when depressed, establish a proper complete circuit.
Inventors
- 👤 Donald N. Halgren
- 👤 Robert J. Crowley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 15:26
CPC Classifications
G; G06; G06F; G06F3/00; G06F3/01; G06F3/048; G06F3/0487; G06F3/0489; G06F3/04892; G06F3/02; G06F3/0202; G06F3/0221; H; H01; H01H; H01H13/00; H01H13/70; H01H13/702; H01H13/78; H01H13/785; H01H13/807; H03; H03K; H03K17/00; H03K17/94; H03K17/96; H03K17/964; H01H13/703; H01H2201/00; H01H2201/02; H01H2201/022; H01H2201/032; H01H2201/036; H01H2209/00; H01H2209/006; H01H2209/024; H01H2209/03; H01H2209/046; H01H2209/052; H01H2209/068; H01H2209/074; H01H2211/00; H01H2211/002; H01H2215/00; H01H2215/05; H01H2215/052; H01H2217/00; H01H2217/034; H01H2219/00; H01H2219/002; H01H2219/01; H01H2219/011; H01H2221/00; H01H2221/002; H01H2221/008; H01H2221/012; H01H2221/036; H01H2221/038; H01H2221/042; H01H2221/084; H01H2223/00; H01H2223/046; H01H2223/052; H01H2225/00; H01H2225/002; H01H2225/018; H01H2227/00; H01H2227/032; H01H2227/034; H01H2229/00; H01H2229/05; H01H2231/00; H01H2231/01; H01H2239/00; H01H2239/01; H01H2239/012; H01H2239/052; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49105
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
69 words
A keyboard for generating electrical signals from a plurality of keys on said keyboard; said keyboard including: a compressible wrist rest cushion articularly arranged adjacent said keyboard to permit a user to rest the user's wrists while inputting data into said keyboard; said wrist rest cushion comprising an elongated pressurizable bag inflated with a fluid; and said wrist rest bag being attached to a front portion of said keyboard.
Claim 2
Dependent Claim
69 words
A keyboard for generating electrical signals from a plurality of keys on said keyboard; said keyboard including: a compressible wrist rest cushion articularly arranged adjacent said keyboard to permit a user to rest the user's wrists while inputting data into said keyboard; said wrist rest cushion comprising an elongated pressurizable bag inflated with a fluid; and said wrist rest bag being attached to a front portion of said keyboard.
Claim 3
Dependent Claim
24 words
A keyboard for generating electrical signals as recited in claim 1, wherein said wrist rest bag is attached to said keyboard by a hinge.
Claim 4
Dependent Claim
23 words
A keyboard for generating electrical signals as recited in claim 2, wherein said keyboard is foldable with respect to said wrist rest bag.
Claim 5
Dependent Claim
37 words
A keyboard for generating electrical signals as recited in claim 2, wherein said keyboard is formed from a plurality of layers of flexible material, each of said layers being joined to one another at a common periphery.
Claim 6
Dependent Claim
37 words
A keyboard for generating electrical signals as recited in claim 4, wherein at least one of said layers of flexible material has an electrical circuit arranged thereon, activation of which will effect signal generation from said keyboard.
Claim 7
Dependent Claim
29 words
The keyboard as recited in claim 5, wherein said electrical circuit is comprised of a piezoelectric material, the flexure of which effectuates an electrical signal to be generated therein.
Claim 8
Dependent Claim
20 words
A keyboard for generating electrical signals as recited in claim 4, wherein said keyboard is filled with a pressurized fluid.
Claim 9
Dependent Claim
23 words
A keyboard for generating electrical signals as recited in claim 1, wherein said wrist rest bag is in fluid communication with said keyboard.
Claim 10
Dependent Claim
63 words
A keyboard for generating electrical signals, comprising: a first layer of flexible material; a second layer of flexible material, said first and second layers of flexible material being joined to one another to form a first pressurizable cavity therebetween comprising said keyboard; said first and second layers being joined to one another to form a second pressurizable cavity adjacent said first pressurizable cavity.
Claim 11
Dependent Claim
63 words
A keyboard for generating electrical signals, comprising: a first layer of flexible material; a second layer of flexible material, said first and second layers of flexible material being joined to one another to form a first pressurizable cavity therebetween comprising said keyboard; said first and second layers being joined to one another to form a second pressurizable cavity adjacent said first pressurizable cavity.
Claim 12
Dependent Claim
22 words
A keyboard for generating electrical signals as recited in claim 9 wherein said second pressurizable cavity comprises an elongated wrist rest bag.
Claim 13
Dependent Claim
27 words
A keyboard for generating electrical signals as recited in claim 10, wherein said wrist rest bag is flexibly connected to said first cavity by a flexible hinge.
Claim 14
Dependent Claim
24 words
A keyboard for generating electrical signals as recited in claim 9, wherein said first and second cavities are in fluid communication with one another.
Claim 15
Dependent Claim
29 words
A keyboard for generating electrical signals as recited in claim 9, wherein one of said layers of flexible material comprising said first cavity has an electric circuit juxtaposed therewith.
Claim 16
Dependent Claim
35 words
A keyboard for generating electrical signals as recited in claim 13, wherein flexure of said one of said layers having said electrical circuit juxtaposed therewith effects the generation of a signal transmitted from said keyboard.
Claim 17
Dependent Claim
29 words
The keyboard as recited in claim 13, wherein said electrical circuit is comprised of a piezoelectric material, the flexure of which effectuates and electrical signal to be generated therein.
Claim 18
Independent Claim
110 words
A method of transmitting an electrical signal to an electrical device, comprising the steps of: arranging at least two layers of flexible material in an overlapping and adjacent manner; sealing a peripheral edge of one of said layers to the other of said layers to form a flexible chamber defined by said layers; attaching said flexible chamber to an electrical signal generating keyboard for providing a wrist rest while striking said keyboard to generate electrical signals thereby to permit transmission of said electrical signals to said electrical device; and striking said electrical signal generating keyboard to generate said electrical signals therefrom to effectuate said transmission thereof to said electrical device.
Claim 19
Independent Claim
110 words
A method of transmitting an electrical signal to an electrical device, comprising the steps of: arranging at least two layers of flexible material in an overlapping and adjacent manner; sealing a peripheral edge of one of said layers to the other of said layers to form a flexible chamber defined by said layers; attaching said flexible chamber to an electrical signal generating keyboard for providing a wrist rest while striking said keyboard to generate electrical signals thereby to permit transmission of said electrical signals to said electrical device; and striking said electrical signal generating keyboard to generate said electrical signals therefrom to effectuate said transmission thereof to said electrical device.
Claim 20
Dependent Claim
65 words
The method of transmitting an electrical signal to an electrical device as recited in claim 16, including the steps of: fabricating said keyboard from said first and second layers of flexible material; arranging a signal generating circuit on one of said layers; and activating said signal generating circuit by flexing at least a portion of said layer of material to which said circuit is attached.
Claim 21
Dependent Claim
76 words
The method of transmitting an electrical signal to an electrical device as recited in claim 16, including the step of: joining a peripheral edge of one of said flexible layers defining said keyboard to the other of said flexible layers so as to define a flexible keyboard cavity therebetween; arranging a plurality of keys on said flexible layer to which said circuit is attached; inflating said keyboard by pressurizable fluid, through a supply conduit communicating therewith.
Claim 22
Dependent Claim
40 words
The method of transmitting an electrical signal to an electrical device as recited in claim 18, including the step of: transferring the signal generated in said electrical circuit to an electrical device through a transfer conduit communicating with said keyboard.
Claim 23
Dependent Claim
29 words
The keyboard as recited in claim 17, wherein said electrical circuit is comprised of a piezoelectric material, the flexure of which effectuates an electrical signal to be generated therein.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2000-07-14 | 2001-01-13 | 2001-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-07-14 | 2005-01-13 | 2005-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-07-14 | 2009-01-13 | 2009-07-15 | $7700.00 | Window Closed / Lapsed |