US3908990A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Baseball batting practice apparatus
Assignee: Individual
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Filing: 1974-11-15
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Granted: 1975-09-30
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Expires: 1994-11-15
Abstract
Abstract An elongated shaft member having a ground engageable end, a free upstanding end and a collar affixed intermediate the ends. A support member having a bore formed therein receives the shaft therethrough and is rotatable about the shaft and movable along the length of the shaft between the collar and the upstanding end of the shaft. A spring is affixed between the support member and the upstanding end of the shaft, and a flexible arm having a ball member affixed thereto is attached to the support member.
Inventors
- 👤 Larry L Spurgeon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:46
CPC Classifications
A; A63; A63B; A63B69/00; A63B69/0073; A63B69/0091; A63B69/0002; A63B2069/0004; A63B2069/0008
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
249 words
A baseball batting practice apparatus comprising: an elongated shaft member having a first ground engageable end and having a second opposite end which is free and upstanding when said shaft is engaged with the ground, said shaft having a collar member intermediate said first and second ends; a spring member having an upper end and a lower depending end, said upper end being affixed to said second end of said shaft, said spring member depending from said second end and encircling said shaft; a support member having an internal wall forming a bore through said support member, said shaft being received through said bore, said support being rotatable about said shaft and movable along said shaft between said collar member and said second end, said lower depending end of said spring being affixed to said support, said internal wall forming a bore which is conical in shape, said support memBer having upwardly and downwardly directed openings of said bore, said upwardly directed opening being smaller than said downwardly directed opening and being substantially the diameter of said shaft, whereby said arm and said ball are allowed to move in more than one plane when said ball is struck; a flexible arm member at an inner end being affixed to said support member and having an outwardly extended end; and a ball member being affixed to said outwardly extended end, whereby said arm and said ball are allowed to move in more than one plane when said ball is struck.
Claim 2
Dependent Claim
249 words
A baseball batting practice apparatus comprising: an elongated shaft member having a first ground engageable end and having a second opposite end which is free and upstanding when said shaft is engaged with the ground, said shaft having a collar member intermediate said first and second ends; a spring member having an upper end and a lower depending end, said upper end being affixed to said second end of said shaft, said spring member depending from said second end and encircling said shaft; a support member having an internal wall forming a bore through said support member, said shaft being received through said bore, said support being rotatable about said shaft and movable along said shaft between said collar member and said second end, said lower depending end of said spring being affixed to said support, said internal wall forming a bore which is conical in shape, said support memBer having upwardly and downwardly directed openings of said bore, said upwardly directed opening being smaller than said downwardly directed opening and being substantially the diameter of said shaft, whereby said arm and said ball are allowed to move in more than one plane when said ball is struck; a flexible arm member at an inner end being affixed to said support member and having an outwardly extended end; and a ball member being affixed to said outwardly extended end, whereby said arm and said ball are allowed to move in more than one plane when said ball is struck.
Claim 3
Dependent Claim
51 words
A baseball batting practice apparatus as defined in claim 1 and further wherein said lower depending end of said spring is attachable to said support at a plurality of locations whereby said support, said arm and said ball are provided with a plurality of rest orientations with respect to said shaft.
Claim 4
Dependent Claim
25 words
A baseball batting practice apparatus as defined in claim 2 and further wherein said shaft is received by said support member against said internal wall.
Claim 5
Dependent Claim
45 words
A baseball batting practice apparatus as defined in claim 1 and further wherein said arm member is attachable to said support at a plurality of locations whereby said arm and said ball are provided with a plurality of rest orientations with respect to said shaft.
Claim 6
Dependent Claim
214 words
A baseball batting practice apparatus comprising: an elongated shaft member having a first ground engageable end and having a second opposite end which is free and upstanding when said shaft is engaged with the ground; a spring member having an upper and a lower depending end, said upper end being affixed to said second end of said shaft, said spring member depending from said second end and encircling said shaft; a support member having an upper portion and a lower portion, said upper portion being connected to said lower portion, said upper portion having an internal wall forming one part of a bore and an upwardly directed opening of said bore, said lower portion having an internal wall forming the other part of said bore and a downwardly directed opening of said bore, said upwardly directed opening being smaller than said downwardly directed opening and being substantially the diameter of said shaft, said shaft being received through said openings, said support being rotatable about said shaft and movable along said shaft, said lower depending end of said spring being affixed to said support; a flexible arm member at an inner end being affixed to said support member and having an outwardly extended end; and a ball member being affixed to said outwardly extended end.
Claim 7
Dependent Claim
214 words
A baseball batting practice apparatus comprising: an elongated shaft member having a first ground engageable end and having a second opposite end which is free and upstanding when said shaft is engaged with the ground; a spring member having an upper and a lower depending end, said upper end being affixed to said second end of said shaft, said spring member depending from said second end and encircling said shaft; a support member having an upper portion and a lower portion, said upper portion being connected to said lower portion, said upper portion having an internal wall forming one part of a bore and an upwardly directed opening of said bore, said lower portion having an internal wall forming the other part of said bore and a downwardly directed opening of said bore, said upwardly directed opening being smaller than said downwardly directed opening and being substantially the diameter of said shaft, said shaft being received through said openings, said support being rotatable about said shaft and movable along said shaft, said lower depending end of said spring being affixed to said support; a flexible arm member at an inner end being affixed to said support member and having an outwardly extended end; and a ball member being affixed to said outwardly extended end.
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) | 1978-09-29 | 1979-03-31 | 1979-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-29 | 1983-03-31 | 1983-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-29 | 1987-03-31 | 1987-09-30 | $7700.00 | Window Closed / Lapsed |