US3958805A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Racket yoke
Assignee: Babcock and Wilcox Co
•
Filing: 1975-07-22
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Granted: 1976-05-25
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Expires: 1995-07-22
Abstract
Abstract A two-piece throat for a racket, the throat being formed with stringholes of slight curvature so as to reduce the occurrence of string failure. The throat comprises two substantially identical sections which fit together in a complementary manner to form the stringholes and provide a mechanical lock such that the force exerted by the strings on the stringhole walls is displaced from the interfaces of the two halves forming the throat.
Inventors
- 👤 Adrianus A. G. Cooper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:28
CPC Classifications
A; A63; A63B; A63B49/00; A63B49/02; A63B49/03
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
77 words
A throat for a racket, which comprises two sections each having its inner surface formed with a plurality of crooked grooves to provide a plurality of crooked ribs intermediate the grooves, the ribs of each throat section being constructed and arranged to interlock with and contact the ribs and part of the transverse extent of the grooves of the other throat section and cooperate with the remaining part of the grooves to form stringholes through the throat.
Claim 2
Dependent Claim
77 words
A throat for a racket, which comprises two sections each having its inner surface formed with a plurality of crooked grooves to provide a plurality of crooked ribs intermediate the grooves, the ribs of each throat section being constructed and arranged to interlock with and contact the ribs and part of the transverse extent of the grooves of the other throat section and cooperate with the remaining part of the grooves to form stringholes through the throat.
Claim 3
Dependent Claim
79 words
A throat as in claim 1, wherein each section includes side surfaces and a front surface, the groove and ribs are arranged in a symmetrical pattern on opposite sides of the longitudinal axis of the throat, the grooves and ribs on one side of the axis extending from the front surface to one of the side surfaces, the grooves and ribs on the opposite side of the longitudinal axis extending from the front surface to the other side surface.
Claim 4
Dependent Claim
14 words
A throat as in claim 2, wherein the ribs are trapezoidal in cross section.
Claim 5
Dependent Claim
41 words
A throat as in claim 2, wherein the ribs and grooves on the one side of the longitudinal axis extend parallel to each other, and the ribs and grooves on the opposite side of the axis extend parallel to each other.
Claim 6
Dependent Claim
195 words
In combination with a racket having a frame with shoulders connected to a handle and strings stretched in the frame, an improved throat for the racket, the throat comprising two sections, each section having side surfaces which conform in curvature to and contact the frame shoulders, a concave front surface cooperating with the frame to form the string section, and an inner surface formed with a plurality of crooked grooves to provide a plurality of crooked ribs intermediate the grooves, the grooves and ribs being arranged in a symmetrical pattern on opposite sides of the longitudinal axis of the throat, the grooves and ribs on one side of the axis extending parallel to each other from the front surface to one of the side surfaces, the grooves and ribs on the opposite side of the axis extending parallel to each other from the front surface to the other side surface, the ribs of each throat section contacting the ribs and part of the transverse extent of the grooves of the other throat section and cooperating with the remaining part of the grooves to form holes through which strings are passed for securement to the frame.
Claim 7
Dependent Claim
195 words
In combination with a racket having a frame with shoulders connected to a handle and strings stretched in the frame, an improved throat for the racket, the throat comprising two sections, each section having side surfaces which conform in curvature to and contact the frame shoulders, a concave front surface cooperating with the frame to form the string section, and an inner surface formed with a plurality of crooked grooves to provide a plurality of crooked ribs intermediate the grooves, the grooves and ribs being arranged in a symmetrical pattern on opposite sides of the longitudinal axis of the throat, the grooves and ribs on one side of the axis extending parallel to each other from the front surface to one of the side surfaces, the grooves and ribs on the opposite side of the axis extending parallel to each other from the front surface to the other side surface, the ribs of each throat section contacting the ribs and part of the transverse extent of the grooves of the other throat section and cooperating with the remaining part of the grooves to form holes through which strings are passed for securement to the frame.
References Cited (Backward Citations)
FR550985A
Cited
GB1201649A
Cited
DE1920584A1
Cited
US3702701A
Cited
US3664669A
Cited
US3884467A
Cited
US3908995A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-05-25 | 1979-11-24 | 1980-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-05-25 | 1983-11-24 | 1984-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-05-25 | 1987-11-24 | 1988-05-25 | $7700.00 | Window Closed / Lapsed |