US4489941A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sports net apparatus
Assignee: Individual
•
Filing: 1982-09-21
•
Granted: 1984-12-25
•
Expires: 2002-09-21
Abstract
Abstract A sports net and frame includes inner frame members, a substantially rectangular outer frame and a netting material. The inner frame is characterized by at least two adjusting rods, each rod being attached by spring elements in a spaced relationship to a side of the netting material and substantially perpendicular to each other. The outer frame is attached by spring elements to at least two perpendicular sides of the netting material. Adjustable screws attach each adjusting rod to the outer frame whereby adjustment of the screws results in adjusting the tension in the netting material. The outer frame is further provided with elements for attaching a sports net and frame of identical structure.
Inventors
- 👤 Shin-Shi Shieh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:22
CPC Classifications
A; A63; A63B; A63B71/00; A63B71/02; A63B71/022; A63B63/00
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
88 words
A movable webwork support for the training and sporting of ball games, comprising a framework surrounded by a tube formation for protection, the interior of said framework comprising a webwork edged with adjustment rods, said tube formation and said webworks being integrated by a number of ring-hooked spring retainers, means connecting said adjustment rods to the edges of said web work and adjusting screws for adjusting the tension of said webwork by displacing said adjustment rods, said adjusting screws extending between said tube formation and said adjustment rods.
Claim 2
Dependent Claim
88 words
A movable webwork support for the training and sporting of ball games, comprising a framework surrounded by a tube formation for protection, the interior of said framework comprising a webwork edged with adjustment rods, said tube formation and said webworks being integrated by a number of ring-hooked spring retainers, means connecting said adjustment rods to the edges of said web work and adjusting screws for adjusting the tension of said webwork by displacing said adjustment rods, said adjusting screws extending between said tube formation and said adjustment rods.
Claim 3
Dependent Claim
34 words
The movable webwork support for the training and sporting of ball games according to claim 1, wherein said tube formation is provided with a two-way joint to facilitate link-up with another movable webwork support.
Claim 4
Dependent Claim
30 words
The movable webwork support for the training and sporting of ball games according to claim 1, wherein said tube formation is formed of metal tubes, plastic tubes, or rubber tubes.
Claim 5
Dependent Claim
24 words
The movable webwork support for the training and sporting of ball games according to claim 1, wherein said webwork comprises a fabric of nylon.
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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) | 1987-12-25 | 1988-06-25 | 1988-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-12-25 | 1992-06-25 | 1992-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-12-25 | 1996-06-25 | 1996-12-25 | $7700.00 | Window Closed / Lapsed |