US3986716A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composite racquet structure
Assignee: Wells Fargo Capital Finance LLC
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Filing: 1974-09-23
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Granted: 1976-10-19
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Expires: 1994-09-23
Abstract
Abstract A compound tennis racquet is formed of extruded metal tubing and injection molded plastic. The extruded tubing has a compound cross section with a recessed central portion. The metal tubing is formed into a circular loop to define the main head portion of the tennis racquet. The loop has two depending legs extending from the head to form a portion of the handle of the tennis racquet. A plastic material is injection molded around the major portion of the extruded metal tubing to encompass the handle portion and to encompass approximately to a third to one half the racquet head. The molded plastic is continuous in the recessed center portion of the tubing to form a continuous loop around the interior of the head area of the racquet. Holes are provided in the plastic portion for the tennis racquet strings. A hollow molded plastic grip extends beyond the extremities of the depending legs of the extruded metal handle portion.
Inventors
- 👤 Frederick Taussig
- 👤 Gregory O'C Corkery
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:56
CPC Classifications
A; A63; A63B; A63B49/00; A63B49/02; A63B49/022; A63B60/00; A63B60/54
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
100 words
A racquet having a compound metal and plastic structure, the racquet having a head portion and a handle portion, the metal being a tube and having the plastic integral with the tube as a supporting structure, the plastic being integral with the tube at least partially in the head area of the racquet and having a flange projecting into the head area of the racquet away from the inner peripheral surface of the metal tube and adapted to receive and independently support the strings of the racquet, and the plastic enclosing at least partially the handle area of the racquet.
Claim 2
Dependent Claim
100 words
A racquet having a compound metal and plastic structure, the racquet having a head portion and a handle portion, the metal being a tube and having the plastic integral with the tube as a supporting structure, the plastic being integral with the tube at least partially in the head area of the racquet and having a flange projecting into the head area of the racquet away from the inner peripheral surface of the metal tube and adapted to receive and independently support the strings of the racquet, and the plastic enclosing at least partially the handle area of the racquet.
Claim 3
Dependent Claim
13 words
The racquet of claim 1 wherein the tube is a complex metal tube.
Claim 4
Dependent Claim
17 words
The racquet of claim 2 wherein the plastic is around at least part of the metal tube.
Claim 5
Dependent Claim
24 words
The racquet of claim 3 wherein the tube is a complex metal tube having an interior space opening to the exterior of the tube.
Claim 6
Dependent Claim
31 words
The racquet of claim 4 wherein the plastic is around at least a part of the metal tube and occupies at least part of the interior space of the metal tube.
Claim 7
Dependent Claim
27 words
The racquet of claim 4 wherein the interior space opens to the exterior of the metal tube and a plastic flange is anchored in the interior space.
Claim 8
Dependent Claim
46 words
The racquet of claim 4 wherein the interior space of the metal tube opens into the head area of the racquet and a flange of plastic is anchored in the interior space, the flange extending from the metal tube into the head area of the racquet.
Claim 9
Dependent Claim
21 words
The racquet of claim 1 wherein the plastic is filled with from about 10 to 40% by weight of a filler.
Claim 10
Dependent Claim
36 words
The racquet of claim 7 wherein the plastic is continuous with a layer of plastic molded at least partly around the exterior of the metal tube and at least partly forming the handle of the racquet.
Claim 11
Dependent Claim
17 words
The racquet of claim 7 wherein the flange has means to receive the strings of the racquet.
Claim 12
Dependent Claim
10 words
The racquet of claim 1 wherein the tube is aluminum.
Claim 13
Dependent Claim
13 words
The racquet of claim 1 wherein the plastic is an injection moldable nylon.
Claim 14
Dependent Claim
21 words
The racquet of claim 1 wherein the plastic is filled with from about 10 to 40% by weight of a filler.
Claim 15
Dependent Claim
46 words
The racquet of claim 1 wherein the racquet has a face portion in the head portion and the center of percussion of the racquet is spaced from between about 1 inch below the center of the face to 2 inches above the center of the face.
Claim 16
Dependent Claim
14 words
The device of claim 1 wherein the racquet weighs less than about 380 grams.
Claim 17
Dependent Claim
158 words
A racquet having light weight, good balance, feel, and striking characteristics and having means to dampen vibrations initiated on contact of the racquet and a ball, the racquet having a head portion and a handle portion, the racquet being a complex metal tube having an interior space with an opening to the exterior of the tube, the tube comprising at least partially the head portion of the racquet with the opening in the interior of the head portion, the tube terminating in at least one projection extending outwardly from the head portion, the projection comprising at least partially the handle portion, a plastic supporting material integral with the tube at least partially surrounding the tube, and an integral flange of plastic material anchored in the interior space of the tube and extending into the interior of the head portion away from the inner peripheral surface of the metal tube, the flange having means for independently supporting the strings.
Claim 18
Dependent Claim
158 words
A racquet having light weight, good balance, feel, and striking characteristics and having means to dampen vibrations initiated on contact of the racquet and a ball, the racquet having a head portion and a handle portion, the racquet being a complex metal tube having an interior space with an opening to the exterior of the tube, the tube comprising at least partially the head portion of the racquet with the opening in the interior of the head portion, the tube terminating in at least one projection extending outwardly from the head portion, the projection comprising at least partially the handle portion, a plastic supporting material integral with the tube at least partially surrounding the tube, and an integral flange of plastic material anchored in the interior space of the tube and extending into the interior of the head portion away from the inner peripheral surface of the metal tube, the flange having means for independently supporting the strings.
Claim 19
Dependent Claim
15 words
The racquet of claim 16 wherein the tube has at least one additional interior space.
Claim 20
Dependent Claim
45 words
The racquet of claim 16 wherein the plastic material extends around the outwardly extending handle portion of the tube and terminates in a grip portion, the handle being hollow in the grip portion and having perforations allowing air circulation in the area of the grip.
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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) | 1979-10-19 | 1980-04-19 | 1980-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-10-19 | 1984-04-19 | 1984-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-10-19 | 1988-04-19 | 1988-10-19 | $7700.00 | Window Closed / Lapsed |