PRACTICE GOLF CLUB

• US 3,753,564 A
• Filed: 03/27/1972
• Issued: 08/21/1973
• Est. Priority Date: 03/27/1972
• Status: Expired due to Term

• Current Assignee: John R. Brandell
• Original Assignee: John R. Brandell
• Inventors: Brandell, John R.
• Primary Examiner(s): Marlo, George J.
• Application Number:
  US05/238,179
• Time in Patent Office: 512 Days
• Field of Search: 273/186,183,163,164,193,194
• US Class Current: 473/220
• CPC Class Codes: A63B 69/3614 using electro-magnetic, magnetic or ultrasonic radiation emitted, reflected or interrupted by the golf club

Abstract

The top surface of a golf club head includes a first lens adjacent the striking face and a second lens adjacent the rear of the club head. A small battery-energized light bulb is positioned below the first lens. The second lens is located in the remote end of a light transmitting cylinder which has its other end positioned adjacent the light bulb. The light transmitting cylinder is mounted so that it may be moved to various positions along an arcuate path generally parallel to the rear surface of the club head. The light beam transmitted upwardly by each lens may be used by a golfer to provide information relating to the position of the club striking face during practice swings. The sole plate of the club head is removably mounted to permit the weight of the club head to be varied. To permit access into the interior of the club head, the head is made in two parts, the upper one of which is bolted to the lower part.

Claims

1. A practice golf club comprising a. an elongated shaft b. a head mounted on one end of said shaft c. two light emitting indicator members 1. carried by said head within the peripheral border thereof, and 2. in position to be visible on said head to a golfer during a golf swing by said golfer, d. said indicator members having a position on said head relative to each other so as to appear to said golfer to be traveling along the same path of travel at the lower-most portion of such a golf swing when 1. the front face of said head is horizontally perpendicular to the path of travel of said head, and 2. the path of travel of said head is directly at the target area at said lowermost portion of said swing.

2. movable along said shaft toward and away from said lower face.

3. A practice golf club as defined in claim 1, and in which a. one of said indicator members is adjustably movable from said position toward and away from the toe of said head.

4. a toe, and c. two illuminated indicator means, mounted in said head and visible from above said upper face, for indicating the position and path travel of said front face during a golfing swing of said club, d. one of said indicator means being disposed closer to said front face than to said rear edge, e. the other of said indicator means being disposed closer to said rear edge than to said front face, and f. supporting means

5. a toe c. two light emitting indicators carried in said head and visible on said upper face for indicating the position and path of travel of said front face during a golfing swing of said club, d. said indicators having one position relative to each other wherein they will travel along what appears to the person making the swing as the same path of travel when said front face is perpendicular to the intended line of flight of a golf ball and said club head travels along said line of flight during said golfing swing.

6. A practice golf club as defined in claim 4, and which includes a. means mounted in said head for energizing said indicators.

7. A practice golf club as defined in claim 4, and a. which includes an elongated lever pivotally mounted at one end in said head for swinging movement of the other end thereof toward and away from said toe, and b. in which one of said indicators is mounted on said other end of said lever and is movable therewith.

8. A practice golf club as defined in claim 7, and in which a. said other end of said lever projects outwardly through a slot in said head and is movable along said slot for moving said one indicator relative to the other of said indicators.

9. A practice golf club as defined in claim 8, and which includes a. a second slot along which said one indicator is movable, and b. a scale disposed adjacent to said second slot for indicating the position of said one indicator relative to said other indicator.

10. A practice golf club as defined in claim 7, and in which a. the other of said indicators comprises an electrically energized light bulb disposed in said head between said upper and lower faces, and b. said one indicator comprises the end of a light transmitting tubular member disposed in said head in position to transmit light received from said bulb outwardly through said upper face.

11. A practice golf club as defined in claim 10, and which includes a. a battery mounted in said head between said upper and lower faces for energizing said bulb.

12. A practice golf club as defined in claim 11, and a. which includes a switch operatively connected between said bulb and said battery, b. said switch being mounted in said head and having a control portion projecting outwardly from said head.

13. A practice golf club as defined in claim 11, and which includes a. a plate removably mounted in said lower face.

14. A practice golf club as defined in claim 4, and in which a. said upper face is

15. A practice golf club comprising a. an elongated shaft having