US4026553A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Racket for tennis, badminton, squash or the like
Assignee: Individual
•
Filing: 1975-03-06
•
Granted: 1977-05-31
•
Expires: 1995-03-06
Abstract
Abstract A racket for tennis, badminton, squash or the like. The racket has a generally conventional oval frame with a handle. A one-piece molded plastic meshed netting is provided with oval strands parallel to the oval frame and radiating strands intersecting and bracing the oval strands. Thickened ends of the radiating strands pass through holes in the frame where they are secured either by a belting strand passing through loops at the ends of the radiating strands or by merely passing through the loops of adjacent radiating strands. The belting strand and other pairs of radiating strands are hooked onto one of two pins each in a tube in the handle. The tubes are adjustable axially by a screwthreaded plug and a screw at the butt end of the handle, each cooperating with one of the tubes for adjusting the tension of the netting.
Inventors
- 👤 Dante Vendramini
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 12:52
CPC Classifications
A; A63; A63B; A63B51/00; A63B51/12; A63B51/02; A63B51/04; H; H02; H02K; H02K13/00; H02K13/006
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
103 words
A netting member for tennis or badminton rackets of the type having a grooved frame with holes extending therethrough from the interior to the exterior of the frame, comprising; a network consisting of plastic material which is reinforced with glass fibers and comprises at its periphery strands with free end portions of substantially circular cross section and distributed in the same way as the holes of the frame, each strand having at its free end a loop and the length of the strands being such that, after threading through the respective holes, the loops extend from the respective holes exteriorly of the frame.
Claim 2
Dependent Claim
103 words
A netting member for tennis or badminton rackets of the type having a grooved frame with holes extending therethrough from the interior to the exterior of the frame, comprising; a network consisting of plastic material which is reinforced with glass fibers and comprises at its periphery strands with free end portions of substantially circular cross section and distributed in the same way as the holes of the frame, each strand having at its free end a loop and the length of the strands being such that, after threading through the respective holes, the loops extend from the respective holes exteriorly of the frame.
Claim 3
Dependent Claim
45 words
A netting member for tennis or badminton rackets according to claim 1 wherein the network comprises longitudinally extending median elements and substantially oval parallel elements extending from radial elements extending transversely from the longitudinal median elements and looped strands extending radially from the oval elements.
Claim 4
Dependent Claim
76 words
A netting member for tennis or badminton rackets according to claim 2, wherein a handle extends from one end of the frame and is joined therewith, the longitudinal elements extending away from the joint between the frame and the handle of the racket and having a length sufficient to allow for their anchoring, external traction means for anchoring the longitudinal elements at the striking surface of the racket so as to constitute the tensioned netting member.
Claim 5
Dependent Claim
34 words
The invention in accordance with claim 3 wherein two coupling elements are mounted on the butt end of the handle for interengagement with the longitudinal strands as well as for tensioning of such strands.
Claim 6
Dependent Claim
130 words
A netting member for tennis or badminton rackets of the type having a frame with holes extending from the interior to the exterior thereof, comprising; a one-piece network consisting of elements in the form of strips which intersect each other to form substantially rectangular interstices save for the marginal strands which extend radially and have free end portions, the strands being disposed radially and in such a way that, when the network is mounted in the interior of the frame, the free end portions, which have a substantially circular cross section, are in register with the holes of the frame, the free end portions of the strands terminating in loops and being of such length that after threading through the holes of the frame, the loops project from the frame.
Claim 7
Dependent Claim
130 words
A netting member for tennis or badminton rackets of the type having a frame with holes extending from the interior to the exterior thereof, comprising; a one-piece network consisting of elements in the form of strips which intersect each other to form substantially rectangular interstices save for the marginal strands which extend radially and have free end portions, the strands being disposed radially and in such a way that, when the network is mounted in the interior of the frame, the free end portions, which have a substantially circular cross section, are in register with the holes of the frame, the free end portions of the strands terminating in loops and being of such length that after threading through the holes of the frame, the loops project from the frame.
Claim 8
Dependent Claim
60 words
The invention in accordance with claim 5 wherein the intersection of two overlapping elements is formed by placing the fibers of one element on both sides of the fibers of the other element at the region of intersection therebetween, the thickness of the region of intersection being the same as that of the elements adjacent to the region of intersection.
Claim 9
Dependent Claim
77 words
The invention in accordance with claim 6 wherein an intersection between two elements comprises an overlapping zone between the two elements wherein the thickness of the zone is formed by a reduced thickness portion of one of the elements and a reduced thickness portion of the other of the elements where they overlap so that the resulting zone of intersection has a combined thickness equal to the thickness of the elements adjacent to the zone of intersection.
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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) | 1980-05-30 | 1980-11-29 | 1981-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-05-30 | 1984-11-29 | 1985-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-05-30 | 1988-11-29 | 1989-05-31 | $7700.00 | Window Closed / Lapsed |