US4009883A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ball game practicing device
Assignee: Individual
•
Filing: 1975-06-13
•
Granted: 1977-03-01
•
Expires: 1995-06-13
Abstract
Abstract There is disclosed a method of practicing ball games in particular golf in which a target is positioned on the correct flight path of the ball and the sound emitted when a correctly struck ball hits the target is used as a measure of the distance which would have been travelled by the ball. An adjustable target and apparatus incorporating the target are also disclosed.
Inventors
- 👤 Stuart Yellowlees
- 👤 William Neil Dey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 04:10
CPC Classifications
A; A63; A63B; A63B24/00; A63B24/0021; A63B63/00; A63B71/00; A63B71/06; A63B71/0619; A63B71/0669; A63B2024/0037; A63B2220/00; A63B2220/50; A63B2220/51; A63B2220/53; Y; Y10; Y10S; Y10S273/00; Y10S273/01
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
109 words
Apparatus for practising ball games comprising: a base line, defined on a board or sheet defining a ball striking position and a vertical axis position for a target; target supporting means adjustably supported on vertical support means and the target being adjustably supported on the target support means; a microphone positioned at a predefined distance and orientation from the centre of the target, said microphone serving to receive a sound produced by a ball impacting against said target; and measuring means connected to said microphone for receiving output signals therefrom and measuring such signals and in response providing an indication of the intensity of the impact of a ball.
Claim 2
Dependent Claim
109 words
Apparatus for practising ball games comprising: a base line, defined on a board or sheet defining a ball striking position and a vertical axis position for a target; target supporting means adjustably supported on vertical support means and the target being adjustably supported on the target support means; a microphone positioned at a predefined distance and orientation from the centre of the target, said microphone serving to receive a sound produced by a ball impacting against said target; and measuring means connected to said microphone for receiving output signals therefrom and measuring such signals and in response providing an indication of the intensity of the impact of a ball.
Claim 3
Dependent Claim
37 words
A target as claimed in claim 1, wherein said target includes a sound box and a target face forming one wall of said sound box and said microphone is located in another wall of said sound box.
Claim 4
Dependent Claim
37 words
A target as claimed in claim 2, wherein said sound box has a truncated configuration, said target face forms the base of said truncated figure and said microphone is located in the top of said turncated figure.
Claim 5
Dependent Claim
33 words
Apparatus as claimed in claim 1, wherein said measuring means includes sound measuring means coupled to the output of said microphone and display means for displaying a reading of said sound measuring means.
Claim 6
Dependent Claim
75 words
Apparatus as claimed in claim 4, wherein said sound measuring means includes resistor means supplying the signal from said microphone to an amplifier and diode so as to provide a half wave output which is stored by a capacitor, and the capacitor is allowed to discharge via a high impedance network to an operational amplifier, the output of the operational amplifier being used to drive said display means which includes a meter displaying the reading.
Claim 7
Dependent Claim
66 words
Apparatus as claimed in claim 1, wherein the target is adapted to practising golf in which the vertical support means are provided with a number of separate predefined positions indicating the club to be used so that securing the target support means at one of said predefined positions ensures that the target support means is at the corrent height for the club indicated for that position.
Claim 8
Dependent Claim
59 words
Apparatus as claimed in claim 6 in which the target is supported on said target support means by means provided with a number of predefined positions indicating the club to be used so that securing the target at one of said predefined positions ensures that the target is at the correct angle for the club indicated for that position.
References Cited (Backward Citations)
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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) | 1980-02-29 | 1980-08-30 | 1981-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-02-29 | 1984-08-30 | 1985-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-02-29 | 1988-08-30 | 1989-03-01 | $7700.00 | Window Closed / Lapsed |