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US5003140A Expired / Lapsed US ⏱️ 0.0 years remaining

Long keybutton stabilizer

Assignee: Maxi Switch Inc
•
Filing: 1989-06-26
•
Granted: 1991-03-26
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Expires: 2009-06-26
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Abstract

Abstract A long keybutton is stablized with a pair of arms and an interconnecting shaft. The ends of the arms are connected to the keybutton using a thin serpentine section which distributes stress and forces to improve life of the part, and permits integral molded keybuttons. The integral molded part with the stability of the portions of the keybutton permits the automated assembly of the stabilized keybutton with the keyboard frame.

Inventors

  • 👤 William A. Abell, Jr.
  • 👤 David A. Bruner

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-09 16:16
CPC Classifications
H; H01; H01H; H01H3/00; H01H3/02; H01H3/12; H01H3/122

Claims Analysis

Total Claims: 10
Claim 1
Independent Claim 178 words
A keybutton for use on a keyboard comprising: a main body member; at least one appendage formed as a stem extending from said main body member for sliding engagement within a mating sleeve forming a part of said keyboard; a stabilizer; said stabilizer comprising an integrally molded shaft rotatably engageable with and retainable in a fixed location relative to said keyboard, by said keyboard and arms extending radially from said shaft and said arms parallel to each other; and a serpentine flexible connecting section interconnecting said main body member to each of said arms, whereby the depression of said main body member by a force at a location other than directly aligned with said appendage will cause a displacement of one of said arms closest to said location, along with rotational movement of said shaft, which in turn displaces the other of said arms to pull said main body member at a point to which said other of said arms is attached, in coordinated movement with the displacement of a point of said member engaged by said force.
Claim 2
Dependent Claim 178 words
A keybutton for use on a keyboard comprising: a main body member; at least one appendage formed as a stem extending from said main body member for sliding engagement within a mating sleeve forming a part of said keyboard; a stabilizer; said stabilizer comprising an integrally molded shaft rotatably engageable with and retainable in a fixed location relative to said keyboard, by said keyboard and arms extending radially from said shaft and said arms parallel to each other; and a serpentine flexible connecting section interconnecting said main body member to each of said arms, whereby the depression of said main body member by a force at a location other than directly aligned with said appendage will cause a displacement of one of said arms closest to said location, along with rotational movement of said shaft, which in turn displaces the other of said arms to pull said main body member at a point to which said other of said arms is attached, in coordinated movement with the displacement of a point of said member engaged by said force.
Claim 3
Dependent Claim 23 words
The keybutton of claim 1 wherein said shaft comprises at least a partially complete cylindrical surface formed proximate both ends of said shaft.
Claim 4
Dependent Claim 18 words
The keybutton of claim 1 wherein said main body member has at least two said appendages extending therefrom.
Claim 5
Dependent Claim 226 words
A keyboard comprising: a frame having a plurality of hollow sleeves extending therefrom; a plurality of retainer pivot means supported by said frame and proximate at least one of said sleeves; and at least one keybutton, engaged with at least one of said sleeves and said shaft engaged with said retainer pivot means; said keybutton comprising; a main body member; at least one appendage formed as a stem extending from said main body member for sliding engagement within a mating sleeve forming a part of said keyboard; a stabilizer; said stabilizer comprising an integrally molded shaft rotatably engageable with and retainable by said keyboard in a fixed location relative to said keyboard, and arms extending radially from said shaft and said arms parallel to each other; and a serpentine flexible connecting section interconnecting said main body member to each of said arms, whereby the depression of said main body member by a force at a location other than directly aligned with said appendage will cause a displacement of one of said arms closest to said location, along with rotational movement of said shaft, which in turn displaces the other of said arms to pull said main body member at a point to which said other of said arms is attached, in coordinated movement with the displacement of a point of said member engaged by said force.
Claim 6
Dependent Claim 226 words
A keyboard comprising: a frame having a plurality of hollow sleeves extending therefrom; a plurality of retainer pivot means supported by said frame and proximate at least one of said sleeves; and at least one keybutton, engaged with at least one of said sleeves and said shaft engaged with said retainer pivot means; said keybutton comprising; a main body member; at least one appendage formed as a stem extending from said main body member for sliding engagement within a mating sleeve forming a part of said keyboard; a stabilizer; said stabilizer comprising an integrally molded shaft rotatably engageable with and retainable by said keyboard in a fixed location relative to said keyboard, and arms extending radially from said shaft and said arms parallel to each other; and a serpentine flexible connecting section interconnecting said main body member to each of said arms, whereby the depression of said main body member by a force at a location other than directly aligned with said appendage will cause a displacement of one of said arms closest to said location, along with rotational movement of said shaft, which in turn displaces the other of said arms to pull said main body member at a point to which said other of said arms is attached, in coordinated movement with the displacement of a point of said member engaged by said force.
Claim 7
Dependent Claim 116 words
A keybutton for use on a keyboard, which includes a main body portion having a top surface and a left and right end, a left arm portion and a right arm portion each extending downwardly from said main body portion and integrally formed therewith by a flexible, lateral movement permitting connection, and a shaft portion linking the left and right arm portions for unified movement, so that when the keybutton is mounted on a keyboard with the shaft portion movably secured thereon, downward movement of one end of said main body portion and one of the arm portions results in downward movement of the other arm portion and the other end of the main body portion.
Claim 8
Dependent Claim 116 words
A keybutton for use on a keyboard, which includes a main body portion having a top surface and a left and right end, a left arm portion and a right arm portion each extending downwardly from said main body portion and integrally formed therewith by a flexible, lateral movement permitting connection, and a shaft portion linking the left and right arm portions for unified movement, so that when the keybutton is mounted on a keyboard with the shaft portion movably secured thereon, downward movement of one end of said main body portion and one of the arm portions results in downward movement of the other arm portion and the other end of the main body portion.
Claim 9
Dependent Claim 19 words
The keybutton of claim 5 where the main body portion and said arms are connected by a flexible connection.
Claim 10
Dependent Claim 26 words
The keybutton of claim 6 wherein said flexible connection is a portion of the integral keybutton and arms formed in a serpentine form, forming said connection.

References Cited (Backward Citations)

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US2340615A Cited
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EP0267541A2 Cited
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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) 1994-03-25 1994-09-24 1995-03-26 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1998-03-25 1998-09-24 1999-03-26 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2002-03-25 2002-09-24 2003-03-26 $7700.00 Window Closed / Lapsed

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