Patent US267822A successfully refreshed from Google Patents.
Patent US4913441A successfully refreshed from Google Patents.
US4913441A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laser golf training device
Assignee: Ellenby Tech Inc
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Filing: 1988-08-05
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Granted: 1990-04-03
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Expires: 2008-08-05
Abstract
Abstract A golf training device having a grip with a top and bottom and longitudinal axis therethrough is provided with a laser light generating mechanism within the grip which generates a laser light beam that projects out of the top of the grip. An obstruction mechanism is positioned in the path of the laser light beam in order to selectively obstruct the emission of the laser light beam from the grip, and a power source is connected to the laser light generator in order to supply power to operate the generator mechanism. In one embodiment, a shaft and golf club head are connected to the bottom of the grip, and in a second embodiment, weights are added to the bottom of the grip to simulate the swing weight of a golf club.
Inventors
- 👤 Robert N. Freer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 16:49
CPC Classifications
A; A63; A63B; A63B69/00; A63B69/36; A63B69/3614
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
107 words
A golf training device comprising: grip means for holding said device, said grip means being hollow and having a top and bottom with a longitudinal axis therethrough; laser light generating means within said grip means for generating a laser light beam and projecting said laser light beam out of said grip means; obstruction means in the path of said laser light beam generated by said generating means for obstructing said laser light beam and preventing said laser light beam from projecting out of said grip means; and power supply means, connected to said laser light generating means for supplying power to operate said laser light generating means.
Claim 2
Dependent Claim
107 words
A golf training device comprising: grip means for holding said device, said grip means being hollow and having a top and bottom with a longitudinal axis therethrough; laser light generating means within said grip means for generating a laser light beam and projecting said laser light beam out of said grip means; obstruction means in the path of said laser light beam generated by said generating means for obstructing said laser light beam and preventing said laser light beam from projecting out of said grip means; and power supply means, connected to said laser light generating means for supplying power to operate said laser light generating means.
Claim 3
Dependent Claim
28 words
A device as claimed in claim 1 further comprising: a shaft connected to the bottom of said grip means; and a golf club head connected to said shaft.
Claim 4
Dependent Claim
18 words
An apparatus as claimed in claim 1, wherein said power supply means is mounted within said grip means.
Claim 5
Dependent Claim
19 words
A golf training device as claimed in claim 1, wherein said power supply means is comprised of a battery.
Claim 6
Dependent Claim
21 words
A device as claimed in claim 3, wherein said power supply means is comprised of a battery and a step-up transformer.
Claim 7
Dependent Claim
37 words
A device as claimed in claim 1, wherein said power supply is comprised of an adaptor jack on said grip means, and a power source outside said grip means adapted to be connected to said adaptor jack.
Claim 8
Dependent Claim
15 words
A device as claimed in claim 6, wherein said power source is an AC converter.
Claim 9
Dependent Claim
17 words
A device as claimed in claim 6, wherein said power source is a low voltage battery pack.
Claim 10
Dependent Claim
16 words
A device as claimed in claim 8, wherein said power source is a 10-12 volt battery.
Claim 11
Dependent Claim
34 words
A device as claimed in claim 1, further comprising on/off indicator means connected to said laser light generating means and said power supply means for indicating when said laser light generating means is activated.
Claim 12
Dependent Claim
27 words
A device as claimed in claim 1, further comprising on/of switch means connected to said power supply means for turning said power supply means on and off.
Claim 13
Dependent Claim
35 words
A device as claimed in claim 1, wherein said obstruction means is fitted over the top of said grip means in the path of said laser light beam generated by said laser light generating means.
Claim 14
Dependent Claim
36 words
A device as claimed in claim 12, wherein said obstruction means is comprised of a cam member pivotably mounted on said grip means and movable into and out of the path of said laser light beam.
Claim 15
Dependent Claim
33 words
A device as claimed in claim 13, wherein said cam member has an opening therethrough through which said laser light beam passes when said opening is in alignment with said laser light beam.
Claim 16
Dependent Claim
36 words
A device as claimed in claim 13, wherein said obstruction means further comprises a cap member fitted over the end of said grip means and operatively connected to said cam member for pivoting said cam member.
Claim 17
Dependent Claim
47 words
A device as claimed in claim 1, wherein said laser light generating means is mounted within said grip means such that said laser light beam generated by said generating means emits from the top of said grip means coaxially with the longitudinal axis of said grip means.
Claim 18
Dependent Claim
28 words
A device as claimed in claim 1, further comprising weight means on the bottom end of said grip means for simulating the swing weight of a golf club.
Claim 19
Dependent Claim
76 words
A golf training device adapted to be connected to a power source, said device comprising: grip means for holding said device, said grip means being hollow and having a top and a bottom and a longitudinal axis therethrough; and light generating means within said grip means for generating a collimated light beam and projecting said collimated light beam out of said grip means, said light generating means being adapted to be connected to said power source.
Claim 20
Dependent Claim
76 words
A golf training device adapted to be connected to a power source, said device comprising: grip means for holding said device, said grip means being hollow and having a top and a bottom and a longitudinal axis therethrough; and light generating means within said grip means for generating a collimated light beam and projecting said collimated light beam out of said grip means, said light generating means being adapted to be connected to said power source.
Claim 21
Dependent Claim
44 words
A device as claimed in claim 18, further comprising obstruction means moveable into the path of said collimated light beam generated by said light generating means for obstructing said light beam and preventing said light beam from projecting out of the said grip means.
Claim 22
Dependent Claim
47 words
A device as claimed in claim 18, wherein said light generating means is mounted within said grip means such that said collimated light beam generated by said light generating means emits from the top of said grip means coaxially with the longitudinal axis of said grip means.
Claim 23
Dependent Claim
110 words
A golf training device adapted to be connected to a power source, said device comprising: grip means for holding said device, said grip means being hollow and having a top and a bottom and a longitudinal axis therethrough; light generating means within said grip means for generating a collimated light beam and projecting said collimated light beam out of said grip means, said light generating means being adapted to be connected to said power source; and obstruction means movable into the path of said collimated light beam generated by said light generating means for obstructing said light beam and preventing said light beam from projecting out of said grip means.
Claim 24
Dependent Claim
110 words
A golf training device adapted to be connected to a power source, said device comprising: grip means for holding said device, said grip means being hollow and having a top and a bottom and a longitudinal axis therethrough; light generating means within said grip means for generating a collimated light beam and projecting said collimated light beam out of said grip means, said light generating means being adapted to be connected to said power source; and obstruction means movable into the path of said collimated light beam generated by said light generating means for obstructing said light beam and preventing said light beam from projecting out of said grip means.
Claim 25
Dependent Claim
47 words
A device as claimed in claim 21, wherein said light generating means is mounted within said grip means such that said collimated light beam generated by said light generating means emits from the top of said grip means coaxially with the longitudinal axis of said grip means.
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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) | 1993-04-02 | 1993-10-02 | 1994-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-04-02 | 1997-10-02 | 1998-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-04-02 | 2001-10-02 | 2002-04-03 | $7700.00 | Window Closed / Lapsed |