US3879250A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of manufacturing paddle ball racquets
Assignee: Individual
•
Filing: 1973-05-03
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Granted: 1975-04-22
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Expires: 1993-05-03
Abstract
Abstract A method of and apparatus for manufacture of paddle ball racquets having a pair of opposed striking surfaces sandwiching a core, preferably comprising a lightweight, high strength honeycomb-like network, and an edging strip which extends around the periphery of the racquet. The method involves assembling the elements of the sandwich construction in templates, placing the assembly in a forming apparatus and applying heat and pressure to the elements to bond them together. The apparatus comprises a press having a ram and a plurality of forming dies which are sequentially activated to form the edging strip and heated platens for adhesively bonding the striking surfaces to the edging strip and to the core.
Inventors
- 👤 Jr Paul B Rankin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:21
CPC Classifications
A; A63; A63B; A63B59/00; A63B59/80
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
182 words
A method of making a paddle ball racquet having a handle portion and a blade portion including a pair of striking surfaces separated by a honeycomb-like core comprising: A. preparing a side of each striking surface with a bonding material; B. placing a first striking surface in a template with the unprepared side of the striking surface adjacent the template; C. placing a honeycomb-like core on the prepared side of the first striking surface; D. placing a second striking surface on the core with the prepared side against the core; E. extending an edging strip around the perimeter of and between the striking surfaces; F. placing a second template on the second striking surface; G. applying an initial pressure to said surfaces and core H. sequentially applying pressure to said edging strip to form said strip around the periphery of each of the striking surfaces in contact with said surfaces; and I. applying a final pressure to and heating the striking surfaces, core and edging strip for a sufficient time and temperature to bond said surfaces to the edging strip and core.
Claim 2
Independent Claim
182 words
A method of making a paddle ball racquet having a handle portion and a blade portion including a pair of striking surfaces separated by a honeycomb-like core comprising: A. preparing a side of each striking surface with a bonding material; B. placing a first striking surface in a template with the unprepared side of the striking surface adjacent the template; C. placing a honeycomb-like core on the prepared side of the first striking surface; D. placing a second striking surface on the core with the prepared side against the core; E. extending an edging strip around the perimeter of and between the striking surfaces; F. placing a second template on the second striking surface; G. applying an initial pressure to said surfaces and core H. sequentially applying pressure to said edging strip to form said strip around the periphery of each of the striking surfaces in contact with said surfaces; and I. applying a final pressure to and heating the striking surfaces, core and edging strip for a sufficient time and temperature to bond said surfaces to the edging strip and core.
Claim 3
Dependent Claim
32 words
A method of making a paddle ball racquet as set forth in claim 1 and including placing a plurality of grommets between said striking surfaces before applying any pressure to said surfaces.
Claim 4
Independent Claim
192 words
A method of making a paddle ball racquet having a handle portion and a blade portion including a pair of striking surfaces separated by a honeycomb-like network which extends into the handle portion of the racquet comprising: A. preparing one side of each striking surface with a bonding material; B. placing a first striking surface in a template with the unprepared side adjacent the template; C. placing the network on the first striking surface; D. extending an edging strip around the perimeter of the first striking surface; E. placing a second striking surface on the network with the prepared side against the network; F. placing a second template on said second striking surface; G. applying an inital pressure to said surfaces and network; H. sequentially applying pressure to said edging strip to form said strip around the periphery of said striking surfaces in contact with said surfaces; I. applying a final pressure to said striking surfaces, edging strip and network while heating the same for a sufficient time and temperature to cause said elements to bond; and J. completing said racquet by trimming said edging strip and applying a handle grip thereto.
Claim 5
Independent Claim
192 words
A method of making a paddle ball racquet having a handle portion and a blade portion including a pair of striking surfaces separated by a honeycomb-like network which extends into the handle portion of the racquet comprising: A. preparing one side of each striking surface with a bonding material; B. placing a first striking surface in a template with the unprepared side adjacent the template; C. placing the network on the first striking surface; D. extending an edging strip around the perimeter of the first striking surface; E. placing a second striking surface on the network with the prepared side against the network; F. placing a second template on said second striking surface; G. applying an inital pressure to said surfaces and network; H. sequentially applying pressure to said edging strip to form said strip around the periphery of said striking surfaces in contact with said surfaces; I. applying a final pressure to said striking surfaces, edging strip and network while heating the same for a sufficient time and temperature to cause said elements to bond; and J. completing said racquet by trimming said edging strip and applying a handle grip thereto.
Claim 6
Independent Claim
192 words
A method of making a paddle ball racquet having a handle portion and a blade portion including a pair of striking surfaces separated by a honeycomb-like network which extends into the handle portion of the racquet comprising: A. preparing one side of each striking surface with a bonding material; B. placing a first striking surface in a template with the unprepared side adjacent the template; C. placing the network on the first striking surface; D. extending an edging strip around the perimeter of the first striking surface; E. placing a second striking surface on the network with the prepared side against the network; F. placing a second template on said second striking surface; G. applying an inital pressure to said surfaces and network; H. sequentially applying pressure to said edging strip to form said strip around the periphery of said striking surfaces in contact with said surfaces; I. applying a final pressure to said striking surfaces, edging strip and network while heating the same for a sufficient time and temperature to cause said elements to bond; and J. completing said racquet by trimming said edging strip and applying a handle grip thereto.
Claim 7
Independent Claim
192 words
A method of making a paddle ball racquet having a handle portion and a blade portion including a pair of striking surfaces separated by a honeycomb-like network which extends into the handle portion of the racquet comprising: A. preparing one side of each striking surface with a bonding material; B. placing a first striking surface in a template with the unprepared side adjacent the template; C. placing the network on the first striking surface; D. extending an edging strip around the perimeter of the first striking surface; E. placing a second striking surface on the network with the prepared side against the network; F. placing a second template on said second striking surface; G. applying an inital pressure to said surfaces and network; H. sequentially applying pressure to said edging strip to form said strip around the periphery of said striking surfaces in contact with said surfaces; I. applying a final pressure to said striking surfaces, edging strip and network while heating the same for a sufficient time and temperature to cause said elements to bond; and J. completing said racquet by trimming said edging strip and applying a handle grip thereto.
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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) | 1978-04-21 | 1978-10-21 | 1979-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-04-21 | 1982-10-21 | 1983-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-04-21 | 1986-10-21 | 1987-04-22 | $7700.00 | Window Closed / Lapsed |