US3734499A - Racket with resilient surface - Google Patents

Racket with resilient surface Download PDF

Info

Publication number
US3734499A
US3734499A US00212979A US3734499DA US3734499A US 3734499 A US3734499 A US 3734499A US 00212979 A US00212979 A US 00212979A US 3734499D A US3734499D A US 3734499DA US 3734499 A US3734499 A US 3734499A
Authority
US
United States
Prior art keywords
membrane
racket
rods
edges
loop
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US00212979A
Inventor
F Goldstein
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of US3734499A publication Critical patent/US3734499A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B49/00Stringed rackets, e.g. for tennis
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B59/00Bats, rackets, or the like, not covered by groups A63B49/00 - A63B57/00
    • A63B59/80Circular bats or paddles not provided for in groups A63B59/20 - A63B59/70
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B51/00Stringing tennis, badminton or like rackets; Strings therefor; Maintenance of racket strings
    • A63B51/02Strings; String substitutes; Products applied on strings, e.g. for protection against humidity or wear
    • A63B51/04Sheet-like structures used as substitutes
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B51/00Stringing tennis, badminton or like rackets; Strings therefor; Maintenance of racket strings
    • A63B51/12Devices arranged in or on the racket for adjusting the tension of the strings
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S273/00Amusement devices: games
    • Y10S273/01Carbonate

Definitions

  • ABSTRACT A game racket, such as a tennis racket, in which the game ball contact surface is a resilient membrane such
  • rackets have not found acceptance for a variety of reasons, including complexity of construction, particularly as to means for tensioning the membrane.
  • the lack of acceptance has resulted despite the fact that rackets using membranes in place of strings, particularly when the membranes are formed from plastic materials, provide greater resistance to deterioration by moisture and other atmospheric conditions, and the membranes are generally easier to affix to the racket. The latter is especially significant since the stringing of a conventional tennis racket normally is a tedious job and requires considerable skill.
  • an object of the invention is to provide a racket employing a membrane which may be tensioned in several directions simultaneously.
  • Still another object of the invention is to provide a racket in which tensioning means are incorporated directly therein so that the tension of the membrane may be modified and controlled conveniently and at any time.
  • Still another object is to provide a new and improved racket employing a membrane and tensioning mechanism therefor, which racket is simple and economical to manufacture, and wherein greater game ball control is attained.
  • the racket of the invention includes as part of the frame a closed loop which is substantially covered with a resilient membrane.
  • Tensioning means are incorporated into the frame of the racket for multidirectionally stretching and maintaining substantially uniform tension in the membrane, preferably by means of a plurality of rods which are rotatably mounted on edges of the loop.
  • the rotatable rods are adapted to draw edges of the membrane in several directions simultaneously, this being accomplished by gears connecting the rods and a mechanism for rotating and locking the rods when the desired tension has been attained.
  • edges of the membrane which are not drawn by the rotatably rods may be anchored to the loop, as by other rods fixedly positioned on the loop, and any number of pairs of such rotatable rods and fixed rods may be employed, with suitable gearing therebetween.
  • Wind resistance to the membrane may be reduced by the provision of openings in the membrane, and improved ball control may be attained by embossing the surface of the membrane.
  • FIG. 1 is a partially diagrammatic, plan view of a racket of the invention
  • FIG. 2 is a somewhat enlarged side view of a portion of the tensioning means of the racket, shown to the left of FIG. 1;
  • FIG. 3 is a partly diagrammatic, plan view of another embodiment of resilient membrane useful with the racket of the invention, somewhat reduced in size with respect to the membrane of the racket in FIG. 1.
  • a racket of the invention in the form of a tennis racket having a head portion 12, a throat portion 13, and a handle 14.
  • the major portions of the frame of the racket thus are head portion 12 and throat portion 13, and the former is defined by a closed loop, here shown generally rectangular in shape.
  • the game ball surface or face of the racket is a resilient membrane 15 having a plurality of edge extensions or ears 16 on the perimeter thereof.
  • the membrane 15 may be formed of any suitable shaped sheet or film of foamed or cellular rubber, such as polyurethane and the like. A membrane of about l-lO mils thickness, preferably about 5 mils thickness, is useful.
  • the surface of the membrane may be provided with a plurality of apertures 17 in order to lower wind resistance to the membrane, and the surface of the membrane may be embossed (with or without the apertures 17), in a cross-hatched manner 18 or otherwise, as shown in FIG. 3, for improved frictional contact with a game ball.
  • any suitable material may be used for the frame 19 of the racket, such as aluminum, metal alloys of various types, wood piles, or plastic, including combinations of the foregoing.
  • One very suitable plastic material for the frame is a polycarbonate plastic sold by General Electric Company under the trademark Lexan. This is a lightweight, strong plastic material which, in the form of three-eighths inch strips about forty inches long, may be shaped by heating into any desired loop shape.
  • the material used for the head portion of the frame may be continuous and have extensions 21 forming portions of the throat and handle of the racket, as shown.
  • a spacer block 22 may be inserted between the extensions 21 and this composite may then be wrapped or taped in a known manner to form the handle of the racket.
  • the throat 13 of the racket also may be structured and covered in any desired manner in accordance with principles well known in the art.
  • Tensioning means are provided in the form of rotatable rods 23 and 24 which operate as spindles for drawing adjacent edges of the membrane 15.
  • the ears 16 of the membrane rods are shown as rolled on the rods 23 and 24, it will beevident that the tensioning may also be accomplished by other means, such as by a plurality of wires or threads along the edges or ears 16 of the membrane which are wound on the rods 23 and 24.
  • the opposing ears 16 of the membrane are anchored to the frame 19 in any suitable manner, such as by rigidly mounted rods 25 and 26.
  • rods 23 and 26 are mounted directly in frame 19, if desired.
  • the rods 23 and 24 are simultaneously rotated by means of a pair of meshing bevel gears 27, and the drive means for the rotation may be the combination of a ratchet wheel 28 and a pawl 29, as shown in detail in FIG. 2.
  • a slot 31 may be provided in ratchet wheel 28 for insertion of a turnkey such as a coin, or a turnkey may be mounted integral with the ratchet wheel 28.
  • the slot arrangement for a turnkey is preferred since it avoids projections from the edge of the frame 19 which add to the weight of the racket and which might cause injury.
  • a coin or other turnkey is inserted in the slot 31 and the rod 24 is rotated to provide the desired lateral and longitudinal tension in the membrane 15, by virtue of the windup of the ears 16 of the membrane on the rods 23 and 24.
  • the pawl 29 prevents reverse rotation of the ratchet wheel 28 once the desired tension has been attained, but the pawl may be disengaged from the ratchet wheel, with simultaneous disengagement of the bevel gears 27, for relaxation of the tension in the membrane, if desired.
  • racket of the invention is shown in the drawing as rectangular, it will be evident that the principles of the invention are applicable to a racket wherein the head has more than four sides, by providing the requisite gearing between adjacent rotatable rods.
  • more than one ratchet wheel and pawl arrangement may be employed, particularly in the case of the racket having more than four sides, for example, a racket in which the number of sides imparts an overall oval configuration to the racket.
  • multiple gears operated by a single drive means would make the multidirectional tensioning more difficult and complex, and therefore plural ratchet wheel and pawl arrangements would be desirable.
  • the ears 16 may be anchored to the frame 19 in a manner other than by the rods and 26.
  • the ears may be anchored by rivoting them directly to the frame, by the use of prongs, or by the use of a rod and a wire to form a nip for the membrane therebetween.
  • the racket of the invention thus provides the uniform multidirectional tensioning required for good resiliency and game ball control in cooperation with simplicity of attachment of the membrane to the frame, and durability of the membrane. Moreover, the invention provides a convenient, built-in, mechanism for tensioning of the membrane at any time, and the racket may be formed of readily available and economical materials.
  • tensioning means for multidirectionally stretching and maintaining substantially uniform tension in said membrane, wherein said tensioning means includes a plurality of rods rotatably mounted on edges of said loop, said rods being adapted to draw edges of said membrane;
  • said tensioning means further includes a plurality of other rods fixedly mounted on edges of said loop opposite said rotatable rods, said other rods being adapted to anchor other edges of said membrane.
  • a racket as in claim 2 including a pair each of said rotatable rods and said fixed rods.
  • said tensioning means further includes a ratchet wheel and pawl, said ratchet wheel having a slot therein for insertion of a turnkey.

Abstract

A game racket, such as a tennis racket, in which the game ball contact surface is a resilient membrane such as plastic film. The membrane is tensioned in several directions at once by spindles on the edge of the racket head, the spindles being connected by bevel gears and rotated by a ratchet wheel and pawl.

Description

111 3,734,499 May 22, 1973 @raitefi States Patent [1 1 Goldstein [541 RACKET WITH RESILIENT SURFACE FOREIGN PATENTS OR APPLICATIONS mmm n n.m m e flea c rc naatnm a a fru e FGGAFG 93 369 620555 999999 1111]] Ill/ll 692 6 1 I 73604 8 7202 .9 345933 702430 l I .m a t n u mn H No .mn we V ma 0 A w k 1 C 9 nC 7 ea 9 dr. 9 6 2 re e 1 FT D 2 r 0 N e w P V p h F A l. l l 6 2 1 7 2 2 .l l. l
Primary ExaminerRichard C. Pinkham Assistant ExaminerRichard J. Apley Attorney-Anthony P. Delio, Robert H. Montgomery and Partick C. Baker 273/73 A-73 L, 76, 95 R, 96 R [57] ABSTRACT A game racket, such as a tennis racket, in which the game ball contact surface is a resilient membrane such [56] References Cited UNITED STATES PATENTS as plastic film. The membrane is tensioned in several e tv e rib 0 W e v g m dd 6W 6 5 ed 8 m m n 3 o .1 m a g s n w .m .1 l i w. .m h r 2m n yum... 3 b.m s, Py m wsb um ed l mm c t ,m 6 3mm 6 n o m i fies e .16 .136 dr EEEXR 333R3 777 7 333 3 777/7 2mi 11 m fi c U7. 3 u m Dbu m CUBIC MAHBP 59324 %%M%% 11111 4 282 1 PATENTED HAY 2 2 I973 INVENTOR Go\ds\'e\n BY 96%; J2 WW A ORNEYS Fred lllillllln'lllllllL RACKET WITH RESILIENT SURFACE BACKGROUND OF THE INVENTION silient membrane rather than strings or rigid surfaces,
such rackets have not found acceptance for a variety of reasons, including complexity of construction, particularly as to means for tensioning the membrane. The lack of acceptance has resulted despite the fact that rackets using membranes in place of strings, particularly when the membranes are formed from plastic materials, provide greater resistance to deterioration by moisture and other atmospheric conditions, and the membranes are generally easier to affix to the racket. The latter is especially significant since the stringing of a conventional tennis racket normally is a tedious job and requires considerable skill.
Perhaps one of the major reasons for lack of acceptance of membrane rackets is that the tension imparted to the membrane has not been uniform in all directions, with the result that wrinkles are formed in the surface of the membrane after a period of time and the resiliency is not uniform over the membrane. Control over the game ball therefore is proportionately lost.
OBJECTS AND SUMMARY Accordingly, an object of the invention is to provide a racket employing a membrane which may be tensioned in several directions simultaneously.
Still another object of the invention is to provide a racket in which tensioning means are incorporated directly therein so that the tension of the membrane may be modified and controlled conveniently and at any time.
Still another object is to provide a new and improved racket employing a membrane and tensioning mechanism therefor, which racket is simple and economical to manufacture, and wherein greater game ball control is attained.
These and other objects, features and advantages of the invention will become apparent from the specification which follows.
In summary outline, the racket of the invention includes as part of the frame a closed loop which is substantially covered with a resilient membrane. Tensioning means are incorporated into the frame of the racket for multidirectionally stretching and maintaining substantially uniform tension in the membrane, preferably by means of a plurality of rods which are rotatably mounted on edges of the loop. The rotatable rods are adapted to draw edges of the membrane in several directions simultaneously, this being accomplished by gears connecting the rods and a mechanism for rotating and locking the rods when the desired tension has been attained. The edges of the membrane which are not drawn by the rotatably rods may be anchored to the loop, as by other rods fixedly positioned on the loop, and any number of pairs of such rotatable rods and fixed rods may be employed, with suitable gearing therebetween. Wind resistance to the membrane may be reduced by the provision of openings in the membrane, and improved ball control may be attained by embossing the surface of the membrane.
The invention accordingly comprises the features of construction, combinations of elements and arrangements of parts which will be exemplified in the constructions hereinafter set forth and the scope of the invention will be indicated in the claims.
DETAILED DESCRIPTION For a fuller understanding of the nature and objects of the invention, reference is made to the following description taken in conjunction with the accompanying drawing in which:
FIG. 1 is a partially diagrammatic, plan view of a racket of the invention;
FIG. 2 is a somewhat enlarged side view of a portion of the tensioning means of the racket, shown to the left of FIG. 1; and
FIG. 3 is a partly diagrammatic, plan view of another embodiment of resilient membrane useful with the racket of the invention, somewhat reduced in size with respect to the membrane of the racket in FIG. 1.
With reference to FIGS. 1 and 2, there is shown a racket of the invention in the form of a tennis racket having a head portion 12, a throat portion 13, and a handle 14. The major portions of the frame of the racket thus are head portion 12 and throat portion 13, and the former is defined by a closed loop, here shown generally rectangular in shape. The game ball surface or face of the racket is a resilient membrane 15 having a plurality of edge extensions or ears 16 on the perimeter thereof. The membrane 15 may be formed of any suitable shaped sheet or film of foamed or cellular rubber, such as polyurethane and the like. A membrane of about l-lO mils thickness, preferably about 5 mils thickness, is useful. The surface of the membrane may be provided with a plurality of apertures 17 in order to lower wind resistance to the membrane, and the surface of the membrane may be embossed (with or without the apertures 17), in a cross-hatched manner 18 or otherwise, as shown in FIG. 3, for improved frictional contact with a game ball.
Any suitable material may be used for the frame 19 of the racket, such as aluminum, metal alloys of various types, wood piles, or plastic, including combinations of the foregoing. One very suitable plastic material for the frame is a polycarbonate plastic sold by General Electric Company under the trademark Lexan. This is a lightweight, strong plastic material which, in the form of three-eighths inch strips about forty inches long, may be shaped by heating into any desired loop shape. The material used for the head portion of the frame may be continuous and have extensions 21 forming portions of the throat and handle of the racket, as shown. A spacer block 22 may be inserted between the extensions 21 and this composite may then be wrapped or taped in a known manner to form the handle of the racket. The throat 13 of the racket also may be structured and covered in any desired manner in accordance with principles well known in the art.
Tensioning means are provided in the form of rotatable rods 23 and 24 which operate as spindles for drawing adjacent edges of the membrane 15. Although the ears 16 of the membrane rods are shown as rolled on the rods 23 and 24, it will beevident that the tensioning may also be accomplished by other means, such as by a plurality of wires or threads along the edges or ears 16 of the membrane which are wound on the rods 23 and 24. The opposing ears 16 of the membrane are anchored to the frame 19 in any suitable manner, such as by rigidly mounted rods 25 and 26. One convenient means for mounting rods 23 and 26 on frame 19 is a pair of tabs 23a and 23b for rotatably holding the ends of rod 23, and a second pair of tabs 26a and 26b for fixedly holding the ends of rod 26. Rods 23 and 26, however, may be mounted directly in frame 19, if desired.
The rods 23 and 24 are simultaneously rotated by means of a pair of meshing bevel gears 27, and the drive means for the rotation may be the combination of a ratchet wheel 28 and a pawl 29, as shown in detail in FIG. 2. A slot 31 may be provided in ratchet wheel 28 for insertion of a turnkey such as a coin, or a turnkey may be mounted integral with the ratchet wheel 28. The slot arrangement for a turnkey is preferred since it avoids projections from the edge of the frame 19 which add to the weight of the racket and which might cause injury.
In tensioning the membrane of the racket, a coin or other turnkey is inserted in the slot 31 and the rod 24 is rotated to provide the desired lateral and longitudinal tension in the membrane 15, by virtue of the windup of the ears 16 of the membrane on the rods 23 and 24. The pawl 29 prevents reverse rotation of the ratchet wheel 28 once the desired tension has been attained, but the pawl may be disengaged from the ratchet wheel, with simultaneous disengagement of the bevel gears 27, for relaxation of the tension in the membrane, if desired.
While the racket of the invention is shown in the drawing as rectangular, it will be evident that the principles of the invention are applicable to a racket wherein the head has more than four sides, by providing the requisite gearing between adjacent rotatable rods. Also, more than one ratchet wheel and pawl arrangement may be employed, particularly in the case of the racket having more than four sides, for example, a racket in which the number of sides imparts an overall oval configuration to the racket. In this instance, however, it will be evident that multiple gears operated by a single drive means would make the multidirectional tensioning more difficult and complex, and therefore plural ratchet wheel and pawl arrangements would be desirable. It will be evident that the ears 16 may be anchored to the frame 19 in a manner other than by the rods and 26. For example, the ears may be anchored by rivoting them directly to the frame, by the use of prongs, or by the use of a rod and a wire to form a nip for the membrane therebetween.
The racket of the invention thus provides the uniform multidirectional tensioning required for good resiliency and game ball control in cooperation with simplicity of attachment of the membrane to the frame, and durability of the membrane. Moreover, the invention provides a convenient, built-in, mechanism for tensioning of the membrane at any time, and the racket may be formed of readily available and economical materials.
It will thus be seen that the objects set forth above, among those made apparent from the preceding description, are efficiently attained and, since certain changes may be made in the above construction without departing from the spirit and scope of the invention, it is intended that all matter contained in the above description or shown in the accompanying drawing shall be interpreted as illustrative and not in a limiting sense.
It will also to be understood that the following claims are intended to cover all of the generic and specific features of the invention herein described, and all statements of the scope of the invention which, as a matter of language, might be said to fall therebetween.
What is claimed is:
1. In a racket, the combination of:
a frame having a handle, said frame including a closed loop;
a resilient membrane substantially filling the area within said loop;
tensioning means for multidirectionally stretching and maintaining substantially uniform tension in said membrane, wherein said tensioning means includes a plurality of rods rotatably mounted on edges of said loop, said rods being adapted to draw edges of said membrane;
gears connecting said rods for simultaneous rotation thereof; and
means for rotating and locking said rods when a pre determined tension on said membrane has been attained.
2. A racket as in claim 1 wherein said tensioning means further includes a plurality of other rods fixedly mounted on edges of said loop opposite said rotatable rods, said other rods being adapted to anchor other edges of said membrane.
3. A racket as in claim 2 including a pair each of said rotatable rods and said fixed rods.
4. A racket as in claim 1 wherein said tensioning means further includes a ratchet wheel and pawl, said ratchet wheel having a slot therein for insertion of a turnkey.
5. A racket as in claim 1 wherein said membrane is a plastic film having a plurality of openings therethrough for lowering of wind resistance to said film.
6. A racket as in claim 1 wherein said membrane is a plastic film having an embossed surface for increased frictional contact with a game ball.

Claims (6)

1. In a racket, the combination of: a frame having a handle, said frame including a closed loop; a resilient membrane substantially filling the area within said loop; tensioning means for multidirectionally stretching and maintaining substantially uniform tension in said membrane, wherein said tensioning means includes a plurality of rods rotatably mounted on edges of said loop, said rods being adapted to draw edges of said membrane; gears connecting said rods for simultaneous rotation thereof; and means for rotating and locking said roDs when a predetermined tension on said membrane has been attained.
2. A racket as in claim 1 wherein said tensioning means further includes a plurality of other rods fixedly mounted on edges of said loop opposite said rotatable rods, said other rods being adapted to anchor other edges of said membrane.
3. A racket as in claim 2 including a pair each of said rotatable rods and said fixed rods.
4. A racket as in claim 1 wherein said tensioning means further includes a ratchet wheel and pawl, said ratchet wheel having a slot therein for insertion of a turnkey.
5. A racket as in claim 1 wherein said membrane is a plastic film having a plurality of openings therethrough for lowering of wind resistance to said film.
6. A racket as in claim 1 wherein said membrane is a plastic film having an embossed surface for increased frictional contact with a game ball.
US00212979A 1971-12-28 1971-12-28 Racket with resilient surface Expired - Lifetime US3734499A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US21297971A 1971-12-28 1971-12-28

Publications (1)

Publication Number Publication Date
US3734499A true US3734499A (en) 1973-05-22

Family

ID=22793228

Family Applications (1)

Application Number Title Priority Date Filing Date
US00212979A Expired - Lifetime US3734499A (en) 1971-12-28 1971-12-28 Racket with resilient surface

Country Status (1)

Country Link
US (1) US3734499A (en)

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3966207A (en) * 1973-06-25 1976-06-29 Pass Roger D String system for a game racket
US3975017A (en) * 1974-05-10 1976-08-17 Professional Amateur Industries, Inc. Tennis racket
US4148483A (en) * 1978-04-10 1979-04-10 Sweet Alvin H Handleless hand racket
US4213608A (en) * 1978-09-15 1980-07-22 Krishnan Mithra S Game racquets
WO1985000114A1 (en) * 1983-06-29 1985-01-17 Parwenit Projekt Ag Racket for a ball game, particularly tennis
US4861029A (en) * 1987-01-26 1989-08-29 Yamaha Corp. Racket frame
US5131653A (en) * 1991-08-19 1992-07-21 Yu Chien Ping Racket for play and sports
US5294114A (en) * 1990-12-21 1994-03-15 Oddzon Products, Inc. Game paddle and combination
US5326097A (en) * 1992-03-26 1994-07-05 Yu Chien P Racket for play and sports
US6344006B1 (en) * 2000-11-17 2002-02-05 Richard A. Brandt Sports racket having a uniform string structure
US6402646B1 (en) * 1999-06-25 2002-06-11 Peter A. Wolf Sports and game racket utilizing a preassembled woven stringing surface
US6506132B1 (en) * 2001-04-26 2003-01-14 Brine, Inc. Lacrosse head pocket
US6575853B1 (en) * 2000-03-28 2003-06-10 O'neill Raymond Portable beach basketball system
US6626774B2 (en) * 2001-10-17 2003-09-30 Neil Sorbie Stringless sports racquet
US6910978B2 (en) * 2002-01-14 2005-06-28 John Scott Cooper Game racket
US20060084531A1 (en) * 2004-09-07 2006-04-20 Brandt Richard A Tennis racket having a primarily rectangular shape
US20070010357A1 (en) * 2005-05-13 2007-01-11 Matthew Benjamin M Nets for sporting equipment
US20100248873A1 (en) * 2009-03-30 2010-09-30 John Scott Cooper Novelty article with flexible and waterproof display carrying membrane
US20110250994A1 (en) * 2010-04-08 2011-10-13 Budzielek David M Bunt training device
US20140349789A1 (en) * 2013-05-22 2014-11-27 Andrew Szurley Pre-formed lacrosse pocket

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE203921C (en) *
GB190125276A (en) * 1901-12-11 1902-04-24 Frank Bryan An Improvement in the Manufacture of Rackets and Bats used in Table Tennis and other Analogous Games.
GB204113A (en) * 1922-06-20 1923-09-20 Arthur Bass Talbot Improvements in tennis rackets and the like
US1535125A (en) * 1921-09-27 1925-04-28 Mcdougall John Means for tightening the strings of tennis rackets
US2145785A (en) * 1936-01-28 1939-01-31 Realisation Et L Expl D Inv S Racket for tennis and like games
US2311172A (en) * 1940-10-29 1943-02-16 Hetzel Kurt Racket
FR1133204A (en) * 1955-10-21 1957-03-25 Children's snowshoe
US3048399A (en) * 1961-04-26 1962-08-07 Louis F Breitbach Baseball practice fielding bat
US3162443A (en) * 1962-07-06 1964-12-22 Petri David Arthur Racket with resilient surfaces
FR1573987A (en) * 1968-03-29 1969-07-11

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE203921C (en) *
GB190125276A (en) * 1901-12-11 1902-04-24 Frank Bryan An Improvement in the Manufacture of Rackets and Bats used in Table Tennis and other Analogous Games.
US1535125A (en) * 1921-09-27 1925-04-28 Mcdougall John Means for tightening the strings of tennis rackets
GB204113A (en) * 1922-06-20 1923-09-20 Arthur Bass Talbot Improvements in tennis rackets and the like
US2145785A (en) * 1936-01-28 1939-01-31 Realisation Et L Expl D Inv S Racket for tennis and like games
US2311172A (en) * 1940-10-29 1943-02-16 Hetzel Kurt Racket
FR1133204A (en) * 1955-10-21 1957-03-25 Children's snowshoe
US3048399A (en) * 1961-04-26 1962-08-07 Louis F Breitbach Baseball practice fielding bat
US3162443A (en) * 1962-07-06 1964-12-22 Petri David Arthur Racket with resilient surfaces
FR1573987A (en) * 1968-03-29 1969-07-11

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3966207A (en) * 1973-06-25 1976-06-29 Pass Roger D String system for a game racket
US3975017A (en) * 1974-05-10 1976-08-17 Professional Amateur Industries, Inc. Tennis racket
US4148483A (en) * 1978-04-10 1979-04-10 Sweet Alvin H Handleless hand racket
US4213608A (en) * 1978-09-15 1980-07-22 Krishnan Mithra S Game racquets
WO1985000114A1 (en) * 1983-06-29 1985-01-17 Parwenit Projekt Ag Racket for a ball game, particularly tennis
US4861029A (en) * 1987-01-26 1989-08-29 Yamaha Corp. Racket frame
US5294114A (en) * 1990-12-21 1994-03-15 Oddzon Products, Inc. Game paddle and combination
US5131653A (en) * 1991-08-19 1992-07-21 Yu Chien Ping Racket for play and sports
US5326097A (en) * 1992-03-26 1994-07-05 Yu Chien P Racket for play and sports
US6402646B1 (en) * 1999-06-25 2002-06-11 Peter A. Wolf Sports and game racket utilizing a preassembled woven stringing surface
US6575853B1 (en) * 2000-03-28 2003-06-10 O'neill Raymond Portable beach basketball system
US6344006B1 (en) * 2000-11-17 2002-02-05 Richard A. Brandt Sports racket having a uniform string structure
US7081056B2 (en) * 2000-11-17 2006-07-25 Brandt Richard A Sports racket having a uniform string structure
US6506132B1 (en) * 2001-04-26 2003-01-14 Brine, Inc. Lacrosse head pocket
US6626774B2 (en) * 2001-10-17 2003-09-30 Neil Sorbie Stringless sports racquet
US6910978B2 (en) * 2002-01-14 2005-06-28 John Scott Cooper Game racket
US20060084531A1 (en) * 2004-09-07 2006-04-20 Brandt Richard A Tennis racket having a primarily rectangular shape
US20070010357A1 (en) * 2005-05-13 2007-01-11 Matthew Benjamin M Nets for sporting equipment
US20100248873A1 (en) * 2009-03-30 2010-09-30 John Scott Cooper Novelty article with flexible and waterproof display carrying membrane
US20110250994A1 (en) * 2010-04-08 2011-10-13 Budzielek David M Bunt training device
US20140349789A1 (en) * 2013-05-22 2014-11-27 Andrew Szurley Pre-formed lacrosse pocket

Similar Documents

Publication Publication Date Title
US3734499A (en) Racket with resilient surface
US3647211A (en) Plastic tennis racket having predetermined cross sections effecting flexibility
US3934876A (en) Game racket
US3834699A (en) Method of stringing a game racket
MX9200881A (en) IMPROVED METHOD AND APPARATUS TO STRETCH IN INCREME IMPROVED APPARATUS AND METHOD TO STRETCH IN INCREMENTS A LAMINATED WEFT STRETCHED WITH ZERO TENSION, BUT A LAMINATED WEFT STRETCHED WITH ZERO TENSION, IN A NON-UNIFORM WAY, TO IMPLEMENT A UNIFORMED GRADE TO IT VARIANT DEGREE OF ELASTICITY. ARIANT OF ELASTICITY.
US2969984A (en) Racquet
US4184679A (en) Game racket and method of making same
ES210644U (en) Racket for tennis, badminton or analog games. (Machine-translation by Google Translate, not legally binding)
GB828110A (en) Improvements in or relating to the manufacture of reinforced synthetic resin articles
ES474019A1 (en) Sports racquet
US5216642A (en) Sports collectors clock
US1752251A (en) Changeable sign
US4095790A (en) Tennis racket with tensioned one-piece ball-striking friction imparting grid
US20060211526A1 (en) Convertible racket for multiple stringing configurations
US2070431A (en) Chart board
US2009698A (en) Game
US4099716A (en) Game racket
US1853966A (en) Talking machine and record therefor
US3757395A (en) Quilting and beading frame
US2517124A (en) Snare structure for drums
US2080093A (en) Lettering guide
IT1074843B (en) IMPROVEMENTS IN SPORTS WITH MANUAL HANDLE AND INTENDED TO HIT A BALL
YU201577A (en) Ball-game equipment consisting of frame with stretched net or fabric
GB731483A (en) Improvements in or relating to racquets
US1615491A (en) Indoor football game