US2307470A - Gut string with wear resisting coating - Google Patents
Gut string with wear resisting coating Download PDFInfo
- Publication number
- US2307470A US2307470A US39714141A US2307470A US 2307470 A US2307470 A US 2307470A US 39714141 A US39714141 A US 39714141A US 2307470 A US2307470 A US 2307470A
- Authority
- US
- United States
- Prior art keywords
- string
- gut
- wear resisting
- resisting coating
- wear
- 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
Links
Images
Classifications
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B51/00—Stringing tennis, badminton or like rackets; Strings therefor; Maintenance of racket strings
- A63B51/02—Strings; String substitutes; Products applied on strings, e.g. for protection against humidity or wear
-
- 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
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2913—Rod, strand, filament or fiber
- Y10T428/2933—Coated or with bond, impregnation or core
-
- 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
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31725—Of polyamide
- Y10T428/31739—Nylon type
Definitions
- Fig. 2 is a vertical cross section on a large scale or my improved string.
- I indicates a tennis racketinwhichmyimprovedstringslareulcd.
- the string 2 consists or a core 3 which is the conventional gut string which is coated with a thin layer of nylon composition 4.
- the only eflicient solvent known at the present time for such nylon composition is cresylic acid and the most practical method of applying a coating of such composition on the string known to meat the present time is'by extrusion.
- This coating or layer 4 of the string 3 is applied thereto by extrusion in the same manner that such plastics are applied on metal wires.
- the coating or layer'oi nylon composition 4 thereon will vary. I found that coatings of the thickness of .001" to .02" have given excellent results.
- My improved string 2 provided with the coating as described is strung in the racketin the same manner as the ordinary gut string. It will have the same resiliency and tensile strength but the life or the same is greatly prolonged due to the tough wear-resisting coating 4 enveloping the same.
- a string for tennis rackets and the like comprising an inner core or animal fibrous material enveloped by a layer or nylon composition.
- a string for tennis rackets and the like comprising inner core oi'gut coated with a-layer of nylon composition.
- a string for tennis rackets and the like comprisinganinneacoreotgutcoatedwithalayer or nylon composition having a thickness or .001"
Landscapes
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Physical Education & Sports Medicine (AREA)
- Laminated Bodies (AREA)
Description
Jan. 5, 1943. F. SALATHE, JR
GUT STRING WITH WEAR RESISTING ,JOATING Filed June 7, 1941 Patented Jan. 5, 1943 GUT STRING WITH WEAR BESIS'ILING COATING Frederick Salathe, Jr., Los Angeles, 02111., as-
signor oi. one-half to Jack B. Tidbail, hos,
Angeles, Calif.
Application June 7, 1941, Serial No. 397,141 3 Claims. (01. 117-141) This invention relates to-an improved string for use in tennis rackets, badminton rackets,
squash rackets, and the like.
As well known, strings for rackets just referred to are usually made of animal gut, especially sheep gut, although other animal fibrous material such as sinws has been used. Recently tennis racket strings made of a plastic material from which the synthetic texile fiber known in the trade as nylon is made have been placed on the market. Such strings, however, while having excellent wear-resisting qualities, lack the feel of the gut strings, causing a slower rebound of the ball and also have less resiliency. Apparently; the gut strings are used today ior the reason that there seems to be no other material which has the desired resiliency and tensile strength, but they have the defect oi! low resistance to wear and consequently they wear out in a comparatively short time.
It is an object of this invention to provide a string for tennis rackets and the like which, while retaining the resiliency and the tensile strength.
of the gut string, greatly increases its resistance to wear. For this purpose I envelop or encase the strings made of animal fiber with a thin layer of the plastic composition above referred to. My invention consists in the improved string and the method of making the same as hereinafter described and claimed.
In the accompanying drawing I have illustrated my invention, and in which Figure 1 is the plan view or a conventional tennis racket provided with my improved strings;
and
' Fig. 2 is a vertical cross section on a large scale or my improved string.
Referring to the drawing, I indicates a tennis racketinwhichmyimprovedstringslareulcd.
The string 2 consists or a core 3 which is the conventional gut string which is coated with a thin layer of nylon composition 4.
The only eflicient solvent known at the present time for such nylon composition is cresylic acid and the most practical method of applying a coating of such composition on the string known to meat the present time is'by extrusion. This coating or layer 4 of the string 3 is applied thereto by extrusion in the same manner that such plastics are applied on metal wires.
Depending upon the thickness of the string 3 the coating or layer'oi nylon composition 4 thereon will vary. I found that coatings of the thickness of .001" to .02" have given excellent results.
My improved string 2 provided with the coating as described is strung in the racketin the same manner as the ordinary gut string. It will have the same resiliency and tensile strength but the life or the same is greatly prolonged due to the tough wear-resisting coating 4 enveloping the same.
various changes may be made in the details of construction without departing from the spirit or scope or the invention as defined by the apl. A string for tennis rackets and the like comprising an inner core or animal fibrous material enveloped by a layer or nylon composition.
2. A string for tennis rackets and the like comprising inner core oi'gut coated with a-layer of nylon composition.
3. A string for tennis rackets and the like comprisinganinneacoreotgutcoatedwithalayer or nylon composition having a thickness or .001"
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US39714141 US2307470A (en) | 1941-06-07 | 1941-06-07 | Gut string with wear resisting coating |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US39714141 US2307470A (en) | 1941-06-07 | 1941-06-07 | Gut string with wear resisting coating |
Publications (1)
Publication Number | Publication Date |
---|---|
US2307470A true US2307470A (en) | 1943-01-05 |
Family
ID=23569988
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US39714141 Expired - Lifetime US2307470A (en) | 1941-06-07 | 1941-06-07 | Gut string with wear resisting coating |
Country Status (1)
Country | Link |
---|---|
US (1) | US2307470A (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2674025A (en) * | 1949-08-15 | 1954-04-06 | Texiclon Corp | Polymeric filaments |
US4029317A (en) * | 1974-09-09 | 1977-06-14 | Sven Erik Malmstrom | Games racket |
US4391088A (en) * | 1982-01-13 | 1983-07-05 | United States Tennis Gut Association, Inc. | String for sports rackets |
US4449353A (en) * | 1982-08-06 | 1984-05-22 | United States Tennis Gut Association, Inc. | Gut string for sports rackets |
US4909510A (en) * | 1989-02-03 | 1990-03-20 | Sahatjian Ronald A | Sports racquet netting |
US5327714A (en) * | 1992-07-30 | 1994-07-12 | Prince Manufacturing, Inc. | Synthetic string for sporting application |
US5536005A (en) * | 1993-03-09 | 1996-07-16 | Koff; Steven G. | Means for racket to return strings to original position after ball impact |
CN1044200C (en) * | 1992-05-04 | 1999-07-21 | 白榕 | Multi-function flexible health-care racket |
-
1941
- 1941-06-07 US US39714141 patent/US2307470A/en not_active Expired - Lifetime
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2674025A (en) * | 1949-08-15 | 1954-04-06 | Texiclon Corp | Polymeric filaments |
US4029317A (en) * | 1974-09-09 | 1977-06-14 | Sven Erik Malmstrom | Games racket |
US4391088A (en) * | 1982-01-13 | 1983-07-05 | United States Tennis Gut Association, Inc. | String for sports rackets |
EP0083824A1 (en) * | 1982-01-13 | 1983-07-20 | United States Tennis Association Inc. | String for sports rackets |
US4449353A (en) * | 1982-08-06 | 1984-05-22 | United States Tennis Gut Association, Inc. | Gut string for sports rackets |
US4909510A (en) * | 1989-02-03 | 1990-03-20 | Sahatjian Ronald A | Sports racquet netting |
CN1044200C (en) * | 1992-05-04 | 1999-07-21 | 白榕 | Multi-function flexible health-care racket |
US5327714A (en) * | 1992-07-30 | 1994-07-12 | Prince Manufacturing, Inc. | Synthetic string for sporting application |
US5536005A (en) * | 1993-03-09 | 1996-07-16 | Koff; Steven G. | Means for racket to return strings to original position after ball impact |
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