Patent US4094505A successfully refreshed from Google Patents.
US4094505A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tennis racket
Assignee: Individual
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Filing: 1977-01-04
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Granted: 1978-06-13
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Expires: 1997-01-04
Abstract
Abstract The shaft of the tennis racket is split between the handle and the head into two basic parts, so that a first part cantilevered from the grip supports the head, preferably with a journal, at its inner end while the second part supports the head at its outer end, preferably with a journal. The two shaft parts are unconnected so that they will flex independently of each other to maintain the head generally parallel with the axis of the grip independently of the force or positioning of the ball on the strings of the head. The shaft part that is connected between the grip and the outer end of the head is removable or displacable from the head to allow stringing of the head, and reassembly to overlie and protect the string holes along the side of the head.
Inventors
- 👤 Thomas E. Beall, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:12
CPC Classifications
A; A63; A63B; A63B49/00; A63B49/02; A63B49/08; A63B49/03; A63B60/00; A63B60/06; A63B60/34
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
170 words
A racket, having orientations of an inner end toward the player and an outer end away from the player comprising: a rigid handle having a gripping surface to be held by the player; a bow having opposed sides and opposed inner and outer ends; main strings strung from end to end of said bow and cross-strings strung side to side on said bow; first shaft means extending cantilevered from said handle to a direct mechanical connection with only the inner end of said bow; second shaft means cantilevered from said handle outwardly to a mechanical direct connection with only the outer end of said bow; said first and second shaft means extending from said handle independently of each other to flex as cantilevered beams separately according to forces exerted only at their outer ends through their respective mechanical connection to the inner and outer ends of said bow; and each of said first and second shaft means being unconnected to and freely movable with respect to said opposed bow sides.
Claim 2
Dependent Claim
170 words
A racket, having orientations of an inner end toward the player and an outer end away from the player comprising: a rigid handle having a gripping surface to be held by the player; a bow having opposed sides and opposed inner and outer ends; main strings strung from end to end of said bow and cross-strings strung side to side on said bow; first shaft means extending cantilevered from said handle to a direct mechanical connection with only the inner end of said bow; second shaft means cantilevered from said handle outwardly to a mechanical direct connection with only the outer end of said bow; said first and second shaft means extending from said handle independently of each other to flex as cantilevered beams separately according to forces exerted only at their outer ends through their respective mechanical connection to the inner and outer ends of said bow; and each of said first and second shaft means being unconnected to and freely movable with respect to said opposed bow sides.
Claim 3
Dependent Claim
59 words
The racket of claim 1, including fastener means at the outer end of said bow and forming the mechanical connection between said bow and said second shaft means, and said fastener means being releasable to permit movement of said second shaft means away from said bow for the stringing of said bow without interference from said second shaft means.
Claim 4
Dependent Claim
93 words
The racket of claim 2, wherein said second shaft means is constructed of a first shaft portion extending from said handle along one side of said first shaft means, along the corresponding side of said bow and to its connection at the outer end of said bow, and a second shaft portion extending from said handle along the other side of said first shaft means, along the other side of said bow and to its connection with the outer end of said bow; and said shaft portions being mirror images of each other.
Claim 5
Dependent Claim
121 words
The racket of claim 3, wherein each of said shaft portions extend from said handle in a direction generally parallel to each other and said first shaft means, thereafter bows away from said first shaft means and then reversely bows inwardly towards the sides of said bow to provide a reverse bend between said handle and said bow that will flex to accommodate a small variation in distance between said handle and the connection between said bow and said second shaft means as both of said shaft means bend upon impact with a ball striking the strings of said bow; and each of said first shaft means, first shaft portion and second shaft portion having a rigid connection with said handle.
Claim 6
Dependent Claim
16 words
The racket of claim 4, wherein said first shaft means is rigidly connected to said bow.
Claim 7
Dependent Claim
16 words
The racket of claim 5, wherein said second shaft means is rigidly connected with said bow.
Claim 8
Dependent Claim
21 words
The racket according to claim 1, wherein the connection between said first shaft means and said bow is a rigid connection.
Claim 9
Dependent Claim
21 words
The racket according to claim 7, wherein the connection between said second shaft means and said bow is a rigid connection.
Claim 10
Dependent Claim
35 words
The racket according to claim 1, wherein the connection between said first shaft means and said bow is a pivotal connection with a pivot axis extending generally perpendicular to the longitudinal axis of said handle.
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) | 1981-06-12 | 1981-12-12 | 1982-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-06-12 | 1985-12-12 | 1986-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-06-12 | 1989-12-12 | 1990-06-13 | $7700.00 | Window Closed / Lapsed |