1.
    发明专利
    未知

    公开(公告)号:AT132382T

    公开(公告)日:1996-01-15

    申请号:AT91113925

    申请日:1991-08-20

    Abstract: A tennis racket (20) includes a one piece integrally molded frame with a handle portion (21) and a pair of beams which extend from the handle portion to the top of the racket. The height (h) and width (w) of each beam varies along the length of the beam. In addition, each beam has a maximum width (w) and height (h) at the bottom of the strung surface proximate the intersection of the beams and a frame cross piece.

    Tennis racket
    2.
    发明专利

    公开(公告)号:HK108396A

    公开(公告)日:1996-07-05

    申请号:HK108396

    申请日:1996-06-27

    Abstract: A tennis racket (20) includes a one piece integrally molded frame with a handle portion (21) and a pair of beams which extend from the handle portion to the top of the racket. The height (h) and width (w) of each beam varies along the length of the beam. In addition, each beam has a maximum width (w) and height (h) at the bottom of the strung surface proximate the intersection of the beams and a frame cross piece.

    3.
    发明专利
    未知

    公开(公告)号:DE69116055T2

    公开(公告)日:1996-07-18

    申请号:DE69116055

    申请日:1991-08-20

    Abstract: A tennis racket (20) includes a one piece integrally molded frame with a handle portion (21) and a pair of beams which extend from the handle portion to the top of the racket. The height (h) and width (w) of each beam varies along the length of the beam. In addition, each beam has a maximum width (w) and height (h) at the bottom of the strung surface proximate the intersection of the beams and a frame cross piece.

    4.
    发明专利
    未知

    公开(公告)号:DE69116055D1

    公开(公告)日:1996-02-15

    申请号:DE69116055

    申请日:1991-08-20

    Abstract: A tennis racket (20) includes a one piece integrally molded frame with a handle portion (21) and a pair of beams which extend from the handle portion to the top of the racket. The height (h) and width (w) of each beam varies along the length of the beam. In addition, each beam has a maximum width (w) and height (h) at the bottom of the strung surface proximate the intersection of the beams and a frame cross piece.

    Racquet mfg. procedure
    6.
    发明专利

    公开(公告)号:DE4426777A1

    公开(公告)日:1995-08-31

    申请号:DE4426777

    申请日:1994-07-28

    Abstract: The procedure, used to make racquets for tennis, squash and other ball games, consists of winding a layer of filament round an elongated mandrel to make a tube, removing the tube from the mandrel and placing it in the chamber (38) of a moulding the shape of the racquet frame. The tube is then put under pressure to force it against the surface of the mould cavity, which is then injected with resin to form a rigid frame on hardening. During the resin injection process the mould chamber is subjected to a suction force to evacuate air and draw the resin through the tube and the mould chamber. The filament material used to wind the tube is pref. of graphite, which can be combined with glass, aramide, boron or polymer fibres, and the resin can be injected into the mould at either end, being evacuated at the other end.

    TENNIS RACKET
    7.
    发明专利

    公开(公告)号:CA2049187A1

    公开(公告)日:1992-02-22

    申请号:CA2049187

    申请日:1991-08-14

    Abstract: TENNIS RACKET A tennis racket includes a one piece integrally molded frame with a handle portion and a pair of beams which extend from the handle portion to the top of the racket. The height and width of each beam varies along the length of the beam. In addition, each beam has a maximum width and height at the bottom of the strung surface proximate the intersection of the beams and a frame cross piece.

Patent Agency Ranking