SE439882B - Racketram av termoplast och sett for dess framstellning - Google Patents
Racketram av termoplast och sett for dess framstellningInfo
- Publication number
- SE439882B SE439882B SE7901921A SE7901921A SE439882B SE 439882 B SE439882 B SE 439882B SE 7901921 A SE7901921 A SE 7901921A SE 7901921 A SE7901921 A SE 7901921A SE 439882 B SE439882 B SE 439882B
- Authority
- SE
- Sweden
- Prior art keywords
- head
- racket
- frame
- core
- wall
- Prior art date
Links
- 238000000465 moulding Methods 0.000 claims description 27
- 238000000034 method Methods 0.000 claims description 16
- 238000002347 injection Methods 0.000 claims description 15
- 239000007924 injection Substances 0.000 claims description 15
- 238000002844 melting Methods 0.000 claims description 10
- 230000008018 melting Effects 0.000 claims description 10
- 239000012815 thermoplastic material Substances 0.000 claims description 10
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 9
- 239000004917 carbon fiber Substances 0.000 claims description 9
- 238000001746 injection moulding Methods 0.000 claims description 9
- 238000004519 manufacturing process Methods 0.000 claims description 7
- 239000000835 fiber Substances 0.000 claims description 5
- 239000012779 reinforcing material Substances 0.000 claims description 3
- 239000007921 spray Substances 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims description 2
- 229910001092 metal group alloy Inorganic materials 0.000 claims 1
- 239000000463 material Substances 0.000 description 24
- 239000004033 plastic Substances 0.000 description 17
- 229920003023 plastic Polymers 0.000 description 17
- 239000006260 foam Substances 0.000 description 11
- 229910052751 metal Inorganic materials 0.000 description 11
- 239000002184 metal Substances 0.000 description 11
- 238000010276 construction Methods 0.000 description 7
- 238000010438 heat treatment Methods 0.000 description 5
- 239000002990 reinforced plastic Substances 0.000 description 5
- 238000001125 extrusion Methods 0.000 description 4
- 239000003365 glass fiber Substances 0.000 description 4
- 239000011159 matrix material Substances 0.000 description 4
- 230000002787 reinforcement Effects 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 238000005266 casting Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 229920001187 thermosetting polymer Polymers 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 2
- 239000004721 Polyphenylene oxide Substances 0.000 description 2
- 238000004512 die casting Methods 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 229920006380 polyphenylene oxide Polymers 0.000 description 2
- 239000004753 textile Substances 0.000 description 2
- 229910000634 wood's metal Inorganic materials 0.000 description 2
- 229910001152 Bi alloy Inorganic materials 0.000 description 1
- 229910000925 Cd alloy Inorganic materials 0.000 description 1
- 235000009854 Cucurbita moschata Nutrition 0.000 description 1
- 240000001980 Cucurbita pepo Species 0.000 description 1
- 235000009852 Cucurbita pepo Nutrition 0.000 description 1
- 229920002302 Nylon 6,6 Polymers 0.000 description 1
- 229910000978 Pb alloy Inorganic materials 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 229910001128 Sn alloy Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- DHKHKXVYLBGOIT-UHFFFAOYSA-N acetaldehyde Diethyl Acetal Natural products CCOC(C)OCC DHKHKXVYLBGOIT-UHFFFAOYSA-N 0.000 description 1
- 125000002777 acetyl group Chemical class [H]C([H])([H])C(*)=O 0.000 description 1
- 239000004676 acrylonitrile butadiene styrene Substances 0.000 description 1
- 238000000071 blow moulding Methods 0.000 description 1
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 239000006261 foam material Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 239000003562 lightweight material Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910001338 liquidmetal Inorganic materials 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 239000002984 plastic foam Substances 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 229920013637 polyphenylene oxide polymer Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 235000020354 squash Nutrition 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B49/00—Stringed rackets, e.g. for tennis
- A63B49/02—Frames
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/40—Removing or ejecting moulded articles
- B29C45/44—Removing or ejecting moulded articles for undercut articles
- B29C45/4457—Removing or ejecting moulded articles for undercut articles using fusible, soluble or destructible cores
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B49/00—Stringed rackets, e.g. for tennis
- A63B49/02—Frames
- A63B49/10—Frames made of non-metallic materials, other than wood
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B60/00—Details or accessories of golf clubs, bats, rackets or the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/44—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles
- B29C33/52—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles soluble or fusible
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B49/00—Stringed rackets, e.g. for tennis
- A63B49/02—Frames
- A63B49/10—Frames made of non-metallic materials, other than wood
- A63B2049/103—Frames made of non-metallic materials, other than wood string holes produced during moulding process
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B49/00—Stringed rackets, e.g. for tennis
- A63B49/02—Frames
- A63B49/10—Frames made of non-metallic materials, other than wood
- A63B49/11—Frames made of non-metallic materials, other than wood with inflatable tubes, e.g. inflatable during fabrication
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B60/00—Details or accessories of golf clubs, bats, rackets or the like
- A63B60/50—Details or accessories of golf clubs, bats, rackets or the like with through-holes
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B60/00—Details or accessories of golf clubs, bats, rackets or the like
- A63B60/54—Details or accessories of golf clubs, bats, rackets or the like with means for damping vibrations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/52—Sports equipment ; Games; Articles for amusement; Toys
- B29L2031/5245—Rackets
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S273/00—Amusement devices: games
- Y10S273/23—High modulus filaments
Landscapes
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Physical Education & Sports Medicine (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB892578 | 1978-03-07 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| SE7901921L SE7901921L (sv) | 1979-09-08 |
| SE439882B true SE439882B (sv) | 1985-07-08 |
Family
ID=9861977
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE7901921A SE439882B (sv) | 1978-03-07 | 1979-03-02 | Racketram av termoplast och sett for dess framstellning |
Country Status (13)
| Country | Link |
|---|---|
| US (2) | US4297308A (nl) |
| JP (1) | JPS5935632B2 (nl) |
| KR (1) | KR820001805B1 (nl) |
| AT (1) | AT381864B (nl) |
| AU (1) | AU521085B2 (nl) |
| BE (1) | BE874678A (nl) |
| CA (1) | CA1129453A (nl) |
| DE (1) | DE2908872C2 (nl) |
| ES (2) | ES247142Y (nl) |
| FR (1) | FR2419082A1 (nl) |
| NL (1) | NL173823C (nl) |
| SE (1) | SE439882B (nl) |
| ZA (1) | ZA791050B (nl) |
Families Citing this family (51)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4338270A (en) * | 1979-06-11 | 1982-07-06 | `Totes`, Incorporated | Method of fabricating a composite foam hand held implement grip |
| DE3061156D1 (en) * | 1979-08-24 | 1982-12-30 | Dunlop Ltd | Method of making games racket frame |
| DE3062290D1 (en) * | 1979-08-24 | 1983-04-14 | Dunlop Ltd | Games racket frame |
| US4643857A (en) * | 1982-06-14 | 1987-02-17 | Cousin Jean Claude | Racket frame |
| US4511523A (en) * | 1982-11-16 | 1985-04-16 | Joseph Hsu | Fabrication of a composite material racket frame |
| USRE33372E (en) * | 1983-10-19 | 1990-10-09 | Tennis racket | |
| US4690405A (en) * | 1983-10-19 | 1987-09-01 | Frolow Jack L | Tennis racket |
| DE3416377A1 (de) * | 1983-12-05 | 1985-06-13 | Walter 7758 Meersburg Holzer | Tennisschlaeger aus u-foermig profilierten hohlprofilen |
| US4614626A (en) * | 1984-04-27 | 1986-09-30 | Frerking James R | Method for fabricating a tennis racquet frame |
| GB8418191D0 (en) * | 1984-07-17 | 1984-08-22 | Dunlop Ltd | Games racket |
| DE8427999U1 (de) * | 1984-09-22 | 1987-03-26 | Kuebler, Siegfried, 7770 Überlingen | Schläger für Spiele mit begrenzt elastischem Ball |
| GB8501006D0 (en) * | 1985-01-16 | 1985-02-20 | Dunlop Ltd | Games racket |
| GB2172238B (en) * | 1985-03-12 | 1989-12-28 | Diversified Prod | Racquets |
| JPS61164431U (nl) * | 1985-04-01 | 1986-10-13 | ||
| GB2175243A (en) * | 1985-05-21 | 1986-11-26 | Diversified Prod | Racquets |
| JPH0429622Y2 (nl) * | 1986-02-20 | 1992-07-17 | ||
| USRE34420E (en) * | 1986-06-19 | 1993-10-26 | Darling James P | Sports racquet |
| US4786055A (en) * | 1986-06-19 | 1988-11-22 | Darling James P | Sports racquet |
| GB2195284B (en) * | 1986-09-17 | 1990-02-28 | Diversified Prod | Racquets |
| US4768786A (en) * | 1986-10-17 | 1988-09-06 | Siegfried Kuebler | Tennis racket |
| GB8706234D0 (en) * | 1987-03-17 | 1987-04-23 | Dunlop Ltd | Games racket |
| US4938280A (en) * | 1988-11-07 | 1990-07-03 | Clark William E | Liquid-cooled, flat plate heat exchanger |
| US5273597A (en) * | 1988-11-26 | 1993-12-28 | Honda Giken Kogyo Kabushiki Kaisha | Trim member for motor vehicle and method of and system for manufacturing the same |
| AT399470B (de) * | 1988-12-15 | 1995-05-26 | Head Sport Ag | Verfahren zur herstellung eines ballspielschlägerrahmens |
| US4903967A (en) * | 1989-01-27 | 1990-02-27 | Ferrari Importing Company, Inc. | Racket frame having holes for tailoring frame stiffness |
| GB2231834A (en) * | 1989-05-27 | 1990-11-28 | Dunlop Ltd | Hollow elongate mouldings |
| US5283020A (en) * | 1989-09-28 | 1994-02-01 | United Technologies Corporation | Component protection from contaminants |
| JPH0687903B2 (ja) * | 1989-12-05 | 1994-11-09 | 住友ゴム工業株式会社 | テニスラケットフレーム |
| US4997186A (en) * | 1989-12-08 | 1991-03-05 | Ferrari Importing Company, Inc. | Racket frame having multi-dimensional cross-sectional construction |
| US5005834A (en) * | 1990-03-16 | 1991-04-09 | Ferrari Importing Company | Multi-frame racket |
| US5211396A (en) * | 1990-03-16 | 1993-05-18 | Ferrari Importing Company | Multi-frame racket |
| US5540434A (en) * | 1990-08-21 | 1996-07-30 | Wilson Sporting Goods Co. | Tennis racket |
| US5176868A (en) * | 1991-01-24 | 1993-01-05 | Prince Manufacturing, Inc. | Long fiber reinforced thermoplastic frame especially for a tennis racquet |
| US5242646A (en) * | 1992-05-07 | 1993-09-07 | Minnesota Mining And Manufacturing Company | Method of making an interengaging fastener member |
| US5534213A (en) * | 1993-10-12 | 1996-07-09 | Epling; Marvin E. | Injection molded limb for compound bow |
| US5922255A (en) * | 1997-04-04 | 1999-07-13 | Highlander Sports, Llc | Method of manufacturing a racket frame and throat |
| US6506134B2 (en) | 1997-06-25 | 2003-01-14 | Fabio Paolo Bertolotti | Interlocking string network for sports rackets |
| US6132325A (en) * | 1997-06-25 | 2000-10-17 | Bertolotti; Fabio P | Interlocking string network for sport rackets |
| US6245265B1 (en) * | 1999-06-23 | 2001-06-12 | International Business Machines Corporation | Method of forming a die-castable hollow core actuator arm with improved damping |
| US20060017197A1 (en) * | 2004-07-20 | 2006-01-26 | Christensen Donald J | Coring of compression-molded phenolic |
| ATE426436T1 (de) * | 2006-04-11 | 2009-04-15 | Prince Sports Inc | Verfahren zur herstellung eines sportschlagers |
| DE102008064385B4 (de) * | 2008-12-22 | 2011-05-05 | Head Technology Gmbh | Ballspielschläger |
| WO2011098031A1 (zh) * | 2010-02-11 | 2011-08-18 | Chen Jinxiang | 一体化制备多边形栅格蜂窝空芯与实芯功能板的模具与方法 |
| US8734925B2 (en) | 2011-10-19 | 2014-05-27 | Hexcel Corporation | High pressure molding of composite parts |
| US20140041977A1 (en) * | 2012-08-10 | 2014-02-13 | Wen-Chan Chang | Suitcase with Retractable Handle Assembly |
| US9199135B2 (en) | 2012-11-27 | 2015-12-01 | Wilson Sporting Goods Co. | Optimized thermoplastic racquet |
| US9399155B2 (en) | 2012-11-27 | 2016-07-26 | Wilson Sporting Goods Co. | Optimized thermoplastic racquet |
| US9192822B2 (en) | 2012-11-27 | 2015-11-24 | Wilson Sporting Goods Co. | Optimized thermoplastic racquet |
| US10391679B2 (en) * | 2016-07-22 | 2019-08-27 | Schlumberger Technology Corporation | Perforated membranes and methods of making the same |
| CN108096802B (zh) * | 2018-01-17 | 2023-05-05 | 安徽三才体育用品有限公司 | 一种三段式羽毛球植毛架 |
| US10751581B2 (en) | 2018-03-12 | 2020-08-25 | Wilson Sporting Goods Co. | Racquet configured with increased flexibility in multiple directions with respect to a longitudinal axis |
Family Cites Families (33)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1401567A (en) * | 1921-12-27 | Process and apparatus for manufacturing hollow rubber articles | ||
| US1472202A (en) * | 1922-07-08 | 1923-10-30 | Spalding & Bros Ag | Tennis racket |
| DK51691C (da) * | 1934-03-21 | 1936-05-25 | Denes Von Mihaly | Apparat til kontinuerlig Optegnelse eller Gengivelse af fotografiske Optegnelser paa en endeløs Filmsstrimmel. |
| GB773971A (en) * | 1951-07-25 | 1957-05-01 | John Frederick Patrick Smith | Process for moulding so-called "plastic" materials |
| DE1692615U (de) * | 1954-09-23 | 1955-02-03 | Artur Zoebl | Vollplastik-federballschlaeger. |
| GB828685A (en) * | 1955-10-04 | 1960-02-24 | Cole E K Ltd | Improvements relating to the moulding of thermoplastic articles |
| DE1748534U (de) * | 1957-02-20 | 1957-07-11 | Bernard R Friedrichs | Tennis-schlaeger, vorzugsweise fuer federball-spiel, aus kunststoff. |
| DE1893026U (de) * | 1963-12-09 | 1964-05-14 | Georg Brohm | Schlaeger fuer tischtennis oder aehnliche ballspiele |
| DE1604528A1 (de) * | 1966-06-16 | 1970-11-12 | Bayer Ag | Formkern zur Herstellung von Hohlkoerpern aller Art |
| US3625512A (en) * | 1968-01-26 | 1971-12-07 | Peter A Latham | Extruded racket having two seamless hollow tubes formed with an interconnecting web |
| US3809402A (en) * | 1969-01-02 | 1974-05-07 | Dunlop Holdings Ltd | Tennis rackets and frames therefor |
| DE6908641U (de) * | 1969-02-24 | 1969-06-26 | Tech Akustik Gmbh & Co | Tennisschlaeger |
| US3664668A (en) * | 1970-04-03 | 1972-05-23 | Franklin W Held | Racketball or tennis racket having a tubular metal frame |
| US3892831A (en) * | 1970-07-29 | 1975-07-01 | Jacques Andre Robin | Method of manufacture of tennis rackets of reinforced synthetic material |
| FR2098838A5 (nl) * | 1970-07-29 | 1972-03-10 | Robin Jacques | |
| US3752478A (en) * | 1971-03-26 | 1973-08-14 | Questar Corp | Racket frame |
| GB1362116A (en) * | 1971-04-27 | 1974-07-30 | Callenelle Usines | Sports rackets |
| US3882220A (en) * | 1971-08-23 | 1975-05-06 | Ryder Int Corp | Method of molding utilizing meltable core |
| CH530249A (de) * | 1971-10-22 | 1972-11-15 | Liechti Fritz Dipl Ing Dr | Verfahren zur Herstellung von Formteilen aus Kunststoffen mit komplizierten Aussparungen und Hohlräumen |
| ATA493572A (de) * | 1972-06-08 | 1975-04-15 | Fischer Gmbh | Ballschlager und verfahren zu seiner herstellung |
| IT975226B (it) * | 1972-06-20 | 1974-07-20 | Kicherer K | Procedimento per la fabbricazione di racchette da tennis |
| FR2270908A1 (en) * | 1973-12-19 | 1975-12-12 | Martel Rene | Moulded resin tennis racket frame - has hollow interfitting string-receiving bosses in two U-section head elements |
| US3981504A (en) * | 1974-03-18 | 1976-09-21 | Ppg Industries, Inc. | Glass-carbon reinforced foamed resin tennis racket frame |
| FR2270909A1 (en) * | 1974-05-16 | 1975-12-12 | Barbafieri Gerard | Stabiliser fixing device for gymnastic apparatus - is L-shaped with anchoring pin and shock absorber block |
| FR2276845A1 (fr) * | 1974-07-05 | 1976-01-30 | Martel Rene | Cadre de raquette et raquette comportant un tel cadre |
| US3998457A (en) * | 1974-12-20 | 1976-12-21 | Pepsico, Inc. | Tennis racket |
| FR2311644A1 (fr) * | 1975-05-21 | 1976-12-17 | Guillemin Jean Pierre | Procede de moulage en creux dans une resine thermodurcissante transparente et produit moule obtenu |
| US4165071A (en) * | 1976-01-05 | 1979-08-21 | Frolow Jack L | Tennis racket |
| JPS52146329A (en) * | 1976-05-27 | 1977-12-06 | Nippon Gakki Seizo Kk | Racket frame |
| DE2631345A1 (de) * | 1976-07-13 | 1978-01-26 | Bosch Gmbh Robert | Tennisschlaeger in verbundbauweise und verfahren zu seiner herstellung |
| JPS5412930A (en) * | 1977-06-30 | 1979-01-31 | Hitachi Chem Co Ltd | Racket frame |
| JPS5416240A (en) * | 1977-07-07 | 1979-02-06 | Hitachi Chem Co Ltd | Racket frame |
| JPS5450582A (en) * | 1977-09-30 | 1979-04-20 | Nippon Carbon Co Ltd | Fiber reinforced plastic molded article |
-
1979
- 1979-02-28 US US06/015,912 patent/US4297308A/en not_active Expired - Lifetime
- 1979-03-01 CA CA322,587A patent/CA1129453A/en not_active Expired
- 1979-03-02 SE SE7901921A patent/SE439882B/sv not_active IP Right Cessation
- 1979-03-06 NL NLAANVRAGE7901765,A patent/NL173823C/nl not_active IP Right Cessation
- 1979-03-06 ZA ZA791050A patent/ZA791050B/xx unknown
- 1979-03-06 ES ES1979247142U patent/ES247142Y/es not_active Expired
- 1979-03-06 KR KR7900675A patent/KR820001805B1/ko active
- 1979-03-06 AU AU44828/79A patent/AU521085B2/en not_active Expired
- 1979-03-07 FR FR7905842A patent/FR2419082A1/fr active Granted
- 1979-03-07 DE DE2908872A patent/DE2908872C2/de not_active Expired
- 1979-03-07 JP JP54026609A patent/JPS5935632B2/ja not_active Expired
- 1979-03-07 AT AT0171179A patent/AT381864B/de not_active IP Right Cessation
- 1979-03-07 BE BE0/193891A patent/BE874678A/xx not_active IP Right Cessation
- 1979-07-09 ES ES482324A patent/ES482324A1/es not_active Expired
-
1981
- 1981-01-29 US US06/229,506 patent/US4440392A/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| FR2419082B1 (nl) | 1981-09-18 |
| ES482324A1 (es) | 1980-10-01 |
| AT381864B (de) | 1986-12-10 |
| DE2908872A1 (de) | 1980-01-31 |
| SE7901921L (sv) | 1979-09-08 |
| ES247142Y (es) | 1982-04-16 |
| FR2419082A1 (fr) | 1979-10-05 |
| ATA171179A (de) | 1986-05-15 |
| JPS5935632B2 (ja) | 1984-08-29 |
| AU4482879A (en) | 1979-09-13 |
| KR820001805B1 (ko) | 1982-10-12 |
| ES247142U (es) | 1981-10-16 |
| NL7901765A (nl) | 1979-09-11 |
| AU521085B2 (en) | 1982-03-18 |
| NL173823C (nl) | 1984-03-16 |
| JPS54127735A (en) | 1979-10-03 |
| US4440392A (en) | 1984-04-03 |
| US4297308A (en) | 1981-10-27 |
| BE874678A (fr) | 1979-07-02 |
| ZA791050B (en) | 1980-04-30 |
| NL173823B (nl) | 1983-10-17 |
| DE2908872C2 (de) | 1985-01-03 |
| CA1129453A (en) | 1982-08-10 |
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