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US5058902A Expired / Lapsed US ⏱️ 0.0 years remaining

Ellipsoidal flared racquet handle with distal butt weight

Assignee: Individual
•
Filing: 1990-07-23
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Granted: 1991-10-22
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Expires: 2010-07-23
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Abstract

Abstract A racquet handle with an ellipsoidal cross-section, the long axis of which increases toward its distal end. Attached to the distal end of the handle is a metal weight, which extends the center of percussion, increases racquet head control, increases the power of heavily wristed shots, and neutralizes impact forces that may cause damage to a player's joints. The long ellipsoidal axis may be made radially adjustable about the longitudinal axis of the handle to suit the grip styles of individuals.

Inventors

  • 👤 Wilmot H. McCutchen

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-25 23:31
CPC Classifications
A; A63; A63B; A63B49/00; A63B49/02; A63B49/08; A63B60/00; A63B60/06; A63B60/32; A63B60/08; A63B60/10; A63B60/12; A63B60/16; A63B60/22; A63B60/24

Claims Analysis

Total Claims: 13
Claim 1
Independent Claim 167 words
An improved tennis racquet, comprising a face defining a generally planar striking surface for striking a ball and a handle for engaging the striking hand of a player, one end of the handle being attached to the face and the other end being the distal end, and having a longitudinal axis extending along the centerlines of the face and the length of the handle, wherein the handle comprises ellipsoidal cross sections with coplanar ellipsoidal major axes decreasing as a function of distance along the longitudinal axis from said distal end to a point less than 6 cm from said distal end, at approximately where the middle finger and center of the palm of the striking hand of a player is located when the racquet is gripped normally with one hand for striking a ball, at which point the dimension of the major axis equals the dimension of the minor axis of the cross section of the handle, and the circumference of the handle is at its minimum.
Claim 2
Dependent Claim 167 words
An improved tennis racquet, comprising a face defining a generally planar striking surface for striking a ball and a handle for engaging the striking hand of a player, one end of the handle being attached to the face and the other end being the distal end, and having a longitudinal axis extending along the centerlines of the face and the length of the handle, wherein the handle comprises ellipsoidal cross sections with coplanar ellipsoidal major axes decreasing as a function of distance along the longitudinal axis from said distal end to a point less than 6 cm from said distal end, at approximately where the middle finger and center of the palm of the striking hand of a player is located when the racquet is gripped normally with one hand for striking a ball, at which point the dimension of the major axis equals the dimension of the minor axis of the cross section of the handle, and the circumference of the handle is at its minimum.
Claim 3
Dependent Claim 28 words
The racquet of claim 1, further comprising approximately circular cross-sections increasing in circumference as a function of distance along the longitudinal axis toward the face from said point.
Claim 4
Dependent Claim 29 words
The racquet of claim 1, further including suitable means for adjusting the angle of the plane of said coplanar ellipsoidal major axes relative to the plane of the face.
Claim 5
Dependent Claim 20 words
The handle of claim 1, further including bilateral ogival ridges bisected by the plane of said coplanar ellipsoidal major axes.
Claim 6
Dependent Claim 126 words
An improved tennis racquet, comprising (a) a face defining a generally planar striking surface, (b) a handle for engaging the striking hand of a player, and (c) a static butt weight in excess of 100 grams attached to the end of the handle which is distal to the face, said static butt weight protruding axially beyond the handle such that said striking hand is between said static butt weight and the face, whereby the center of percussion of the racquet is extended away from the handle, the striking force of the face is increased, impact and vibration forces transmitted through said striking hand are decreased, and strain on the wrist and forearm muscles of the player due to holding the racquet as a cantilever is decreased.
Claim 7
Dependent Claim 126 words
An improved tennis racquet, comprising (a) a face defining a generally planar striking surface, (b) a handle for engaging the striking hand of a player, and (c) a static butt weight in excess of 100 grams attached to the end of the handle which is distal to the face, said static butt weight protruding axially beyond the handle such that said striking hand is between said static butt weight and the face, whereby the center of percussion of the racquet is extended away from the handle, the striking force of the face is increased, impact and vibration forces transmitted through said striking hand are decreased, and strain on the wrist and forearm muscles of the player due to holding the racquet as a cantilever is decreased.
Claim 8
Dependent Claim 19 words
The improved racquet of claim 5 wherein said static butt weight is attached to a handle comprising ellipsoidal cross-sections.
Claim 9
Dependent Claim 18 words
The improved racquet of claim 5 wherein said static butt weight is attached to a conventional, octagonal handle.
Claim 10
Dependent Claim 195 words
A tennis racquet, comprising a face defining a generally planar striking surface for striking a ball and a handle for engaging the striking hand of a player, one end of the handle being attached to the face and the other end being the distal end, and having a longitudinal axis extending along the centerlines of the face and the length of the handle, wherein the handle comprises: (a) a throat section permanently attached to the face, (b) a butt section separable from the throat section by movement along the longitudinal axis, (c) adjustable form-locking means for preventing axial rotation of said butt section around the longitudinal axis and for fixing the radial alignment of said butt section with reference to the face when the butt section is engaged with the throat section, and (d) suitable means for preventing longitudinal movement of the butt section when it is engaged with the throat section, whereby shocks which might have been transmitted from the face through the handle to the arm of the player are reduced, and whereby a player using the racquet may adjust the alignment of the butt section relative to the angle of the face.
Claim 11
Dependent Claim 195 words
A tennis racquet, comprising a face defining a generally planar striking surface for striking a ball and a handle for engaging the striking hand of a player, one end of the handle being attached to the face and the other end being the distal end, and having a longitudinal axis extending along the centerlines of the face and the length of the handle, wherein the handle comprises: (a) a throat section permanently attached to the face, (b) a butt section separable from the throat section by movement along the longitudinal axis, (c) adjustable form-locking means for preventing axial rotation of said butt section around the longitudinal axis and for fixing the radial alignment of said butt section with reference to the face when the butt section is engaged with the throat section, and (d) suitable means for preventing longitudinal movement of the butt section when it is engaged with the throat section, whereby shocks which might have been transmitted from the face through the handle to the arm of the player are reduced, and whereby a player using the racquet may adjust the alignment of the butt section relative to the angle of the face.
Claim 12
Dependent Claim 12 words
The racquet of claim 8, wherein said butt section comprises ellipsoidal cross-sections.
Claim 13
Dependent Claim 25 words
The racquet of claim 8, further including a static butt weight in excess of 100 grams protruding axially beyond the distal end of the handle.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1994-10-21 1995-04-22 1995-10-22 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1998-10-21 1999-04-22 1999-10-22 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2002-10-21 2003-04-22 2003-10-22 $7700.00 Window Closed / Lapsed

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