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...that after Walter Hunt patented the safety pin in 1849, he sold the rights to it for $400?
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| Number | Title | Issue Date |
| 7314067 | Design and manufacturing method for multi-material tube structures The present invention provides an improved tubular structure which uses the properties of different materials, such as stiffness, strength, and density are exploited in a manner which combines the most attractive characteristics of existing metal and composite tubes... | 01/01/2008 |
| 7252598 | Shaft coupler A device for coupling two shaft members of differing diameters. The device includes a barrel and a reaction mass. The barrel is hollow and includes an outside coupler formed by the exterior surface of an upper portion of the barrel, an inside coupler formed by the i... | 08/07/2007 |
| 7207354 | Design and manufacturing method for multi-material tube structures The present invention provides an improved tubular structure which uses the properties of different materials, such as stiffness, strength, and density are exploited in a manner which combines the most attractive characteristics of existing metal and composite tubes... | 04/24/2007 |
| 7172514 | Extendable golf club having interlockable spacer segments An extendable golf club having threadably intercoupled upper and lower shaft sections. The golf club can be extended by threadably coupling one or more spacers between the upper and lower shaft sections and tightening a set screw into engagement with a spacer. ... | 02/06/2007 |
| 7086953 | Golf putter and putting aid A golf putter and putting aid. The golf putter comprises a putter head, a shaft and a grip. The head includes a face, a sole and a handle attachment. The shaft includes a first end, a second, a reinforcing means and an interior region having a fill assembly position... | 08/08/2006 |
| 7048637 | Golf grip alignment device A golf grip alignment device includes a body adapted to fit onto a golf club. The a body includes a tab extending from the body and a seat defined on the body. The tab includes a surface adapted to receive the golfer's thumb. The seat is adapted to receive the golfe... | 05/23/2006 |
| RE38983 | Golf club shaft and insert therefor Golf clubs, golf shafts, and inserts for golf club shafts have a coil or coil-type insert for enhancing swing weight control, stiffness and flex control, shock absorption and vibration elimination or reduction. The insert has a central section and a pair of couplers... | 02/14/2006 |
| 6966846 | Counterweighted golf club A conventional length golf club with a grip including a heavy counterweight, the mass of which is sufficient to cause the center of gravity of the whole golf club to be located within the boundaries of the grip. The counterweight may be an elongated member with a bo... | 11/22/2005 |
| 6932711 | Extendable golf club having interlockable spacer segments An extendable golf club having threadably intercoupled upper and lower shaft sections. The golf club can be extended by threadably coupling one or more spacers between the upper and lower shaft sections and tightening a set screw into engagement with a spacer. ... | 08/23/2005 |
| 6902495 | Golf club vibration dampening and sound attenuation system A golf club vibration dampening and sound attenuation system including an elongated shaft, a club head, a resilient insert assembly, a dampener, and a grip. The shaft has a distal shaft end and a proximal shaft end. The club head is coupled to the distal shaft end, ... | 06/07/2005 |
| 6881157 | Golf club having stabilized air flow structure A golf club comprises a handgrip; a club head, and a club body between the first end and the second end. A cross section area of the club body includes a front portion having a first and a second including surfaces that define a front cusp in front of said first and... | 04/19/2005 |
| 6609981 | Aerodynamic shaft for golf club A shaft adapted to move through a fluid, wherein the shaft has a surface, diameter, and length, and wherein the shaft comprises at least two ridges extending along at least a portion of the length, such that fluid resistance encountered by the shaft as it... | 08/26/2003 |
| 6561922 | Golf club shaft An improved aerodynamic golf club shaft is disclosed. The improved aerodynamic golf club shaft comprises a tube that has an exterior with a non-circular cross section. The golf club shaft may have an elliptical exterior cross section in one preferred embo... | 05/13/2003 |
| 6027414 | Golf club with aerodynamic shaft and head A golf club shaft connects a grip of a golf club to a head of the golf club and has a longitudinal axis that extends from the grip of the golf club to the head of the golf club. At least a portion of the shaft has an aerodynamic cross-sectional shape defi... | 02/22/2000 |
| 5921870 | Aerodynamic shaft A shaft having an outer surface with an aerodynamic cross-sectional configuration. In one series of embodiments, the shaft (20) includes a central core (22) and a fairing (24) surrounding the core. In another embodiment, the shaft does not include a centr... | 07/13/1999 |
| 5916040 | Golf club A golf club capable of being swung faster than a conventional golf club having a club shaft, of which cross-section is circular, is newly invented. The golf club according to the invention has a club shaft, at least a part of which has an arcuate cross-se... | 06/29/1999 |
| 5913733 | Golf club shaft An improved aerodynamic golf club shaft is disclosed. The improved aerodynamic golf club shaft comprises a tube that has an exterior with a non-circular cross section. The golf club shaft may have an elliptical exterior cross section in one preferred embo... | 06/22/1999 |
| 5873793 | Golf club and associated manufacturing method A golf club shaft having a spar, a tube, and a skin is formed which reduces shaft aerodynamic drag. The skin transforms in cross-sectional shape from a circular one at the grip, to a streamlined shape at the shaft tip. The spar introduces stiffness in the... | 02/23/1999 |
| 5795244 | Golf club shaft with an airfoil channel A golf club shaft is disclosed. The golf club shaft includes an elongated tubular member having an outer surface and a longitudinal axis. The elongated tubular member has a plurality of channels formed about the outer surface of the elongated tubular memb... | 08/18/1998 |
| 5735752 | Golf club shaft and insert therefor Golf clubs, golf shafts, and inserts for golf club shafts have a coil or coil-type insert for enhancing swing weight control, stiffness and flex control, shock absorption and vibration elimination or reduction. The insert has a central section and a pair ... | 04/07/1998 |
| 5695409 | Golf club with opening at base of the head A golf club, comprising a head having a striking face, a front toe, a rear heel, and opposing top and bottom edges. The club also includes a shaft joined to the heel of the head, and so as to define a juncture portion therebetween. Also at least one openi... | 12/09/1997 |
| 5632692 | Golf club with non-circular shaft An improved golf club includes a shaft having a noncircular cross section along at least a portion thereof and a club head. The shaft provides increased rigidity in a direction transverse to intended ball impact and a desirable flex characteristic in the ... | 05/27/1997 |
| 5575725 | Golf club hosel configuration A golf club having a shaft with an aerodynamic hosel with defined shape. The clubhead also may have a trip step, a taper toe and runners.... | 11/19/1996 |
| 5556345 | Golf club with improved shafts A golf club adapted to reduce club head rotation during the downswing and when contacting a golf ball, includes a club head, a hand grip portion, and two shafts interconnecting the club head and the hand grip portion. The two shafts converge at the hand g... | 09/17/1996 |
| 5545094 | Golf club shaft A hollow golf club shaft has the first section and the second section. The first section has an inner layer which is made of viscoelastic-foam material and an outer layer which is made of carbon fiber reinforced plastic composite. The inner layer is enclo... | 08/13/1996 |
| 5390922 | Golf clubs and methods Novel golf clubs (10, 50) and associated methodology optimally minimize air resistance during swinging motion of the golf club (10). A first golf club (10) comprises a head (12) a handle (18) and a shaft (22) connecting the head (12) with the handle (18).... | 02/21/1995 |
| 5354056 | Golf club and method A novel golf club (10) and associated methodology optimally minimize air resistance during swinging motion of the golf club (10). The golf club (10) comprises a head (12) for striking a golf ball, a handle (18) for swinging the golf club (10) and a shaft ... | 10/11/1994 |
| 5335908 | Golf club shaft An improved aerodynamic golf club shaft is disclosed. The improved aerodynamic golf club shaft comprises a tube that has an exterior with a non-circular cross section. The golf club shaft may have an elliptical exterior cross section in one preferred embo... | 08/09/1994 |
| 5251896 | Golf club shaft made from fibre-reinforced plastic In a fibre-reinforced plastic golf club shaft, which has at the bottom an end portion for attaching a club head and at the top an end portion for attaching a grip and which is constructed in the form of a hollow profile. The cross-section of the profile i... | 10/12/1993 |
| 4809983 | Golf club head A golf club head of conventional shape is provided with a thin, aerodynamically shaped shank. A hosel, in the shape of a cylinder, at the upper end of the shank is adapted to be inserted into the lower end of the club shaft.... | 03/07/1989 |
| 4648598 | Golf club with air permeable shaft A golf club includes a skeletal air-permeable frame formed of a plurality of spaced apart rods concentrically arranged about a longitudinal axis. At least one tie member integrally interconnects the rods to provide structural rigidity and maintain the spa... | 03/10/1987 |
