Patent US4635935A successfully refreshed from Google Patents.
US4635935A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Audible-physical coordination racket
Assignee: Individual
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Filing: 1984-12-24
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Granted: 1987-01-13
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Expires: 2004-12-24
Abstract
Abstract A table tennis racket having one or more whistles positioned thereon for creating a sound in response to the speed of the swing of the racket. The whistles are adjustably attached to the racket head for producing a tone varying according to the angle of the head relative to the given travel direction, whereby a person can practice to control speed and spin consistency of swing. The whistles are generally positioned on the periphery of the playing surface of the racket, although extensions can be provided to hold the whistles. A person uses the racket by swinging it during a practice game and listening for a consistent tone to assure a consistent speed.
Inventors
- 👤 Jerome Kane
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:44
CPC Classifications
A; A63; A63B; A63B69/00; A63B69/38; A63B59/00; A63B59/40; A63B71/00; A63B71/06; A63B71/0619; A63B71/0622; A63B2071/0625; A63B2102/00; A63B2102/16; A63B60/00; A63B60/50
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
40 words
A practice racket of the type a player swings in a table tennis game comprising: a handle for grasping said racket; a head integral with said handle adapted for striking an object of the type used in said game; and
Claim 2
Dependent Claim
40 words
A practice racket of the type a player swings in a table tennis game comprising: a handle for grasping said racket; a head integral with said handle adapted for striking an object of the type used in said game; and
Claim 3
Dependent Claim
88 words
audible tone producing means affixed to said head for producing a tone varying in response to the velocity at which said racket is moved during practice, said audible tone producing means being a whistle fabricated in a spherical shaped casing, said casing being affixed to said head in an opening which conforms to the shape of the surface of said casing, whereby said tone producing means can be angularly adjusted and a person using said racket can practice various strokes to control speed and spin consistency of swing.
Claim 4
Dependent Claim
88 words
audible tone producing means affixed to said head for producing a tone varying in response to the velocity at which said racket is moved during practice, said audible tone producing means being a whistle fabricated in a spherical shaped casing, said casing being affixed to said head in an opening which conforms to the shape of the surface of said casing, whereby said tone producing means can be angularly adjusted and a person using said racket can practice various strokes to control speed and spin consistency of swing.
Claim 5
Dependent Claim
32 words
The invention according to claim 1, including two other whistles fabricated in spherical casings and affixed to said head in openings which conform to the shape of the surface of said casing.
Claim 6
Dependent Claim
36 words
The invention according to claim 1, including at least one other whistle fabricated in a spherical casing and affixed to said head within an opening which conforms to the shape of the surface of said casing.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-01-12 | 1990-07-14 | 1991-01-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-01-12 | 1994-07-14 | 1995-01-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-01-12 | 1998-07-14 | 1999-01-13 | $7700.00 | Window Closed / Lapsed |