Patent US3830504A successfully refreshed from Google Patents.
US3830504A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Golf practice device
Assignee: Individual
•
Filing: 1974-01-21
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Granted: 1974-08-20
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Expires: 1994-01-21
Abstract
Abstract A tubular casing is held on a pad; through an elongated slot thereof extends a tee stem which supports a golf ball; a reciprocating tee bar inside the tubular member supports the tee stem on the bar so that when the ball is struck the bar is advanced against the action of a coil spring which latter returns the tee bar and the ball into an initial position; spaced from the tee bar is an indicator bar in the tubular member held in an initial position by a coil spring in the far end of the tubular casing and it has an extension projecting beyond the end of the tubular casing provided with indicia for indicating the distance corresponding to the force of striking the ball; a releasable pawl and ratchet device holds the indicator bar in extended position; the point of the tee bar is offset toward the slotted top of the casing so that when the ball is hit to one side or the other it turns the tee bar thereby reducing the force of impact on the indicator bar and also moving side flaps or plates for indicating the direction in which the tee bar was turned.
Inventors
- 👤 B Koo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 11:55
CPC Classifications
A; A63; A63B; A63B69/00; A63B69/0073; A63B69/0091
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
128 words
In a golf practice device, a guide casing, a striking element reciprocable in the casing, a golf ball, means to connect said golf ball to said striking element so as to move said striking element according to the force of striking the ball, first resiliently yieldable means to hold said striking element in an initial position, an indicator element reciprocable in said casing, second resiliently yieldable means to hold said indicator element in an initial position aligned with and spaced to an abuttable distance from said striking element, and a calibrated indicator extended from said indicator element to the outside of said casing for indicating the distance corresponding to the force of impact transmitted through said striking element to said indicator element when said golf ball is struck.
Claim 2
Dependent Claim
128 words
In a golf practice device, a guide casing, a striking element reciprocable in the casing, a golf ball, means to connect said golf ball to said striking element so as to move said striking element according to the force of striking the ball, first resiliently yieldable means to hold said striking element in an initial position, an indicator element reciprocable in said casing, second resiliently yieldable means to hold said indicator element in an initial position aligned with and spaced to an abuttable distance from said striking element, and a calibrated indicator extended from said indicator element to the outside of said casing for indicating the distance corresponding to the force of impact transmitted through said striking element to said indicator element when said golf ball is struck.
Claim 3
Dependent Claim
28 words
The device specified in claim 1, and said means to connect said golf ball being resiliently flexible normally to urge said golf ball into an initial teed position.
Claim 4
Dependent Claim
112 words
The device specified in claim 1, and a striking point on the end of the striking element pointing toward said indicator element and being offset from the center of said end, an abutment point on the end of the indicator element opposite to and in registry with said striking point, said striking element being held in said casing with freedom of limited rotation thereby to move said striking point out of said registering position when said golf ball is struck so as to turn said striking element and thereby to abut said indicator element at an abutment area spaced from said abutment point and to reduce the force of the transmitted impact.
Claim 5
Dependent Claim
31 words
The device specified in claim 3, and a resiliently compressible cushion on said abutment area of the abutment end of said indicator element for cushioning unregistered abutting by said striking point.
Claim 6
Dependent Claim
15 words
The device specified in claim 3, and means to hold said indicator element against rotation.
Claim 7
Dependent Claim
82 words
The device specified in claim 3, and said striking element being a tee-bar rotatable in said casing, there being an elongate guide slot on said casing, and said means to connect said golf ball being a stem slidably extended through said slot, said guide slot being wider than the thickness of said stem to permit limited lateral movement of the stem whenever said golf ball is driven sidewise, thereby to rotate said tee-bar to move said striking point out of registering position.
Claim 8
Dependent Claim
29 words
The device specified in claim 6, and a resiliently compressible cushion on said abutment area offset from said abutment point to cushion an unregistered abutting by said striking point.
Claim 9
Dependent Claim
31 words
The device specified in claim 6, and coacting means on said casing and on said tee-bar to indicate the extent of turning of said tee-bar when reciprocated in a rotated attitude.
Claim 10
Dependent Claim
60 words
The device specified in claim 6, and an eccentric tapered portion of said tee-bar tapering toward said striking point, and a movable indicator member on each side of said casing along said tapered portion being engageable by the portion of said tee-bar adjacent said striking point when said tee-bar is rotated thereby to indicate the annular offset of said tee-bar.
Claim 11
Dependent Claim
73 words
The device specified in claim 6, and said first resiliently yieldable meaNs being a first coil spring engaging the tee-bar, said second resiliently yieldable means being a second coil spring engaging a portion of said indicator element and said casing, a first adjustable element on said casing engaging said first spring for adjusting the resiliency thereof, and a second adjustable element on said casing engaging said second spring for adjusting the resiliency thereof.
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) | 1977-08-19 | 1978-02-18 | 1978-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-08-19 | 1982-02-18 | 1982-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-08-19 | 1986-02-18 | 1986-08-20 | $7700.00 | Window Closed / Lapsed |