Golf club

• US 4,052,075 A
• Filed: 01/08/1976
• Issued: 10/04/1977
• Est. Priority Date: 01/08/1976
• Status: Expired due to Term

• Current Assignee: Daly C. Robert
• Original Assignee: Daly C. Robert
• Inventors: Daly, C. Robert
• Primary Examiner(s): Apley, Richard J.
• Application Number:
  US05/647,408
• Time in Patent Office: 635 Days
• Field of Search: 273/77 R, 273/167-172, 273/73 J
• US Class Current: 473/338
• CPC Class Codes: A63B 2053/0491 with added weights, e.g. changeable, replaceable
• CPC Class Codes: A63B 53/04 Heads
• CPC Class Codes: A63B 53/0416 Heads having an impact surface provided by a face insert
• CPC Class Codes: A63B 53/0433 with special sole configurations
• CPC Class Codes: A63B 53/0466 wood-type
• CPC Class Codes: A63B 53/08 with special arrangements for obtaining a variable impact

Abstract

A golf club having an adjustable and removable weight insert positioned in the club head. The insert includes a tubular sleeve which is fixedly positioned in a complemental bore in the club head, the weight insert being substantially perpendicular to the sole plate of the golf club. The weight insert is positioned behind, and centrally of, the ball-engaging portion of the club'"'"'s striking face and aligned with the plane of the club shaft. The insert further includes a screw member which is threaded into the tubular sleeve, on the shank portion of which a plurality of weight discs are removably positioned. A retaining member holds the discs in position and a sealing member is interposed between the head of the screw member and the tubular sleeve.

Claims

1. A golf club having a recess in the head thereof for receiving a weight insert, the weight insert including:

a. a tubular sleeve having a flat annular bottom surface at one end thereof positioned in the head recess,

b. said one end thereof being internally threaded,

c. a flat headed screw member,

d. the head of said flat head screw having a diameter equal to the outside diameter of said sleeve,

e. a first threaded shank on said screw member threadedly engageable with the internally threaded end of said sleeve,

f. said flat headed screw member further including a non-threaded shoulder forming a substantial annular recess between said flat head and said first threaded shank,

g. an O-ring seated in said annular recess, the thickness of which O-ring approximates the height of said annular recess,

h. the diameter of said O-ring approximating the diameter of said flat head,

i. a second threaded shank having a cross section less than the cross section of said first shank and extending centrally and axially from said first shank,

j. weight means positioned on said second threaded shank and of a diameter less than said sleeve and positioned within said sleeve,

k. retaining means threadedly engaged in said second threaded shank for holding said weight means thereon,

l. said retaining means having a diameter less than said sleeve,

m. said retaining means, said weight means and said second threaded shank being positioned in assembled relation within said sleeve, and

n. said O-ring, when said first threaded shank is threaded in said sleeve, being compressed between said flat annular bottom of said tubular sleeve, said flat head, said annular recess and said recess in the golf club head.

2. A weight insert for a golf club including:

a. a tubular sleeve having a flat annular bottom surface at one end thereof,

b. said one end thereof being internally threaded,

c. a flat headed screw member,

d. the head of said flat headed screw having a diameter equal to the outside diameter of said sleeve,

e. a first threaded shank on said screw member threadedly engageable with the internally threaded end of said sleeve,

f. said flat headed screw member further including a non-threaded shoulder forming a substantial annular recess between said flat head and said first threaded shank,

g. an O-ring seated in said annular recess, the thickness of which O-ring approximates the height of said annular recess,

h. the diameter of said O-ring approximating the diameter of said flat head,

i. a second threaded shank having a cross section less than the cross section of said first shank and extending centrally and axially from said first shank,

j. weight means positioned on said second threaded shank and of a diameter less than said sleeve and positioned within said sleeve, and

k. retaining means threadedly engaged in said second threaded shank for holding said weight means thereon,

l. said retaining means having a diameter less than said sleeve,

m. said retaining means, said weight means and said second threaded shank being positioned in assembled relation within said sleeve, and

n. said O-ring, when said first threaded shank is threaded in said sleeve, being compressed between said first annular bottom of said tubular sleeve, said flat head and said annular recess and extending outwardly beyond the external diameter of said sleeve.