Karsten Manufacturing Corporation

Nike, Inc.

Matt Daraskavich

Brian J Kammerer

Michael R Pinto

Jason Cardani

Michael G Taylor

Jamil Jacaman

Nate Radcliffe

Pedro Maldonado

A golf club head includes a body, a first polymeric insert, and a second polymeric insert. The body includes a face, a sole, and a rear wall that collectively define an undercut volume. The first polymeric insert is provided within the undercut volume to define a sealed cavity within the undercut volume; and, the second polymeric insert is secured to the body and defines an open cavity extending from the rear wall toward the face.

Golf irons with sealed undercut

A golf club having improved visual feature recognition includes a golf club head coupled to a golf club shaft. The golf club head includes a hosel defining a bore, a sole, and a design attribute that is generally not capable of easy visual discernment. The bore has a first portion having a first diameter, a second portion having a second diameter that is smaller than the first diameter, and a transition from the first diameter to the second diameter. The bore extends through the golf club head to the sole, and the golf club shaft is disposed within the first portion of the bore and secured to the hosel. A polymeric plug is disposed within the bore between the golf club shaft and the sole. The polymeric plug includes a restraining feature that contacts the transition to prevent withdrawal of the polymeric plug through the sole, and is a color that corresponds to the design attribute.

Golf club with visual feature indicator

A hollow golf club head includes a metallic body, a club face, and a polymeric insert that cooperate to at least partially define a closed internal cavity. The metallic body includes a sole, a topline, and a rear wall defining an opening, with the rear wall being disposed between the topline and the sole. The club face is disposed between the topline and the sole, and on an opposite side of the sole from the rear wall. A strut extends across the opening and is secured to the body, and a polymeric insert covers the opening and is secured both to the body and to the strut.

Hollow golf club head with polymeric cap

Growing community of inventors

Grapevine, TX, United States of America

Matt Daraskavich