...that power steering was invented by independent inventor Francis W. Davis? As chief engineer in the 1920s of the truck division of the Pierce Arrow Motor Car Company, he saw how hard it was to steer heavy vehicles. So that he would be able to keep the profits from his future invention, Davis left his job, rented a small engineering shop in Waltham, Mass., and developed a hydraulic power steering system that led to power steering.
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| Number | Title | Issue Date |
| 8109838 | Golf club head with a three-dimensional alignment member and methods to manufacture golf club heads Embodiments of golf club heads with a three-dimensional alignment member and methods to manufacture golf club heads are generally described herein. Other embodiments may be described and claimed. ... | 02/07/2012 |
| 8100779 | Golf club head with a three-dimensional alignment member and methods to manufacture golf club heads Embodiments of golf club heads with a three-dimensional alignment member and methods to manufacture golf club heads are generally described herein. Other embodiments may be described and claimed. ... | 01/24/2012 |
| 7959519 | Golf club head with insert having indicia therein A golf club head having an insert forming a window through the golf club head is described. The golf club head has upper and lower surfaces. The golf club head includes a body with a heel, a toe, a front portion with a striking face, and a back portion. The front po... | 06/14/2011 |
| 7645199 | Putter A golf putter head adapted for attachment to a club shaft is provided with a face member having a strike face and a cylindrical back cavity, and a body member configured to fit and rotate within the back cavity is disclosed. Selective rotation of the body member wit... | 01/12/2010 |
| 7601073 | Golf putter A golf putter head dimensioned to closely simulate the size of a regulation-sized golf hole and including at least an indicium approximating the size of a golf ball, whereby a golfer is presented with a visual representation of the size of the target at which he/she... | 10/13/2009 |
| 7485047 | Putter head The putter head has a front face with a heel and toe edge extending from the front face. Both the heel and toe surfaces have cavities extending from the outer surface toward a central wall that is perpendicular to the face of the putter to provide visual indication ... | 02/03/2009 |
| 7452283 | Putterhead with dual milled face pattern A putter-head (20) with a main body (22) having a striking face (24), a weight body (25) and an isolation layer 27 is disclosed herein. The striking face (24) has a dual milled pattern thereon. Preferably, a central area ( | 11/18/2008 |
| 7448955 | Golf club head with alignment indicia A golf club head includes a body and ball alignment indicia that protrudes forwardly of the front surface of the body. A transparent plate covers the ball alignment indicia and has a front face arranged for impacting a golf ball. A flange on the transparent plate is... | 11/11/2008 |
| 7384345 | Golf putter with rotary disc alignment aid A putter head (1) is described wherein the putter head (1) has a putter face (4) and a linear marking (9) located on an upper surface (44) of the putter head (1). The relative angle of the putter face (4) with respect... | 06/10/2008 |
| 7371185 | Putterhead with center line forward offset hosel A golf putterhead having a neck or hosel connecting said putterhead to a shaft. The hosel protrudes above and forward of the strike face on the vertical centerline plane of the putterhead and above the intended strikepoint also in said plane. Said hosel section in f... | 05/13/2008 |
| 7371184 | Putter head The present invention provides a putter head which includes a putter head body which has a portion thereof connected to a distal end of a putter shaft; a laterally extending putter face which is formed on a front portion of the putter head body; a strip-like longitu... | 05/13/2008 |
| 7354356 | Putter head A putter head includes a first half member, a second half member, and an insert. The first half body includes a first metal, and has a face surface on a front face. The second half body includes a second metal, which is higher in specific gravity than the first meta... | 04/08/2008 |
| 7347793 | Weight-balanced golf putter head A golf putter head is generally triangular, when viewed from the top, with a flat, front face and a trailing, central tail. When viewed from the side, the head has a generally straight front face and a flat or slightly curved or rounded bottom surface. The shaft for... | 03/25/2008 |
| 7326128 | Golf club head and method of making same A golf club head, preferably a putter head, has a body fitted with inserts having a density greater than that of the club head body. Two cavities are formed in the body and are accessible only through a front face of the body. One cavity is adjacent a heel region of... | 02/05/2008 |
| 7309291 | Golf club head with alignment indicia A golf club head includes a body and ball alignment indicia that protrudes forwardly of the front surface of the body. A transparent plate covers the ball alignment indicia and has a front face arranged for impacting a golf ball. A flange on the transparent plate is... | 12/18/2007 |
| 7226362 | Golf club head including alignment device A golf club head includes a transparent cylinder with a sight on top and target on the bottom for indicating to the golfer when the club head is level and on line. An exemplary sight includes a centered disk surrounded by concentric rings; some rings being transpare... | 06/05/2007 |
| 7223178 | Golf ball putter including golf ball alignment indicia A golf putter, ball retriever and retainer configured to retrieve and hold a golf ball. The putter defines a substantially symmetrical configuration from heel to toe. The ball retriever and retainer is defined by a spherical recess formed in the sole of the putter a... | 05/29/2007 |
| 7186185 | Gold club with customizable alignment sighting and weighting device A customizable alignment sighting device for a golf club is mounted to an upper surface of the head of the golf club with a sighting element providing the user a visual target indicator for desired alignment of the club head with the user's line of sight. The sighti... | 03/06/2007 |
| 7169058 | Golf putter head having multiple striking surfaces The present invention provides a golf putter head that is suitable for putting a golf ball by either left-handed or right-handed golfers by swinging the putter in the typical pendulum motion or by pushing the putter in a shuffleboard-like motion. Further, the presen... | 01/30/2007 |
| 7166039 | Putterhead with dual milled face pattern A putter-head (20) with a body (22) having a striking face (24) is disclosed herein. The striking face (24) has a dual milled pattern thereon. Preferably, a central area (40) has a first milled pattern and a periphery region (42... | 01/23/2007 |
| 7166036 | Golf club A putter (100) having a club head (20) having a central aperture (32) with a rearward center of gravity is disclosed herein. The club head (20) has a body (22) that is preferably composed of stainless steel. The body (22) ha... | 01/23/2007 |
| RE39472 | Golf putter having improved marking A putter is precision machined to form a concave horizontal face from the heel to toe of the hitting face. The curvature of the concave horizontal face may range from an arc of a five circle to an arc of a one-feet radius circle with the center point at the center o... | 01/16/2007 |
| 7156752 | Gyroscopic golf club heads This invention creates a new and truly scientifically advanced design and structuring of golf club heads based on Sir Isaac Newton's First Law of Motion. A very precise and controlled path of inertial swing is then developed by this gyroscopic club head. This is acc... | 01/02/2007 |
| 7147527 | Apparatus for deploying a rope A miniature foam football with an internal weighting element and a swivel ring or clip is used for deploying a rope. The weighting element is insert-molded in the football foam for low cost of manufacture, and allows the ball to be thrown accurately for distances of... | 12/12/2006 |
| 7147569 | Putter-type club head A putter-type club head (20) having a body (22) and a peripheral mass belt (23) is disclosed herein. The putter-type club head (20) has a body (22) that is preferably composed of an aluminum alloy. The body (22) preferably h... | 12/12/2006 |
| 7118489 | Golf swing training device Apparatus 10 for a golf swing training device comprising a golf club 20 with a shaft 24 with a grip 22 at one end and a club head 26 at the other end of the shaft with a cup 12 attached to the face 14 of the club head... | 10/10/2006 |
| 7083524 | Golf club aligning kit and method of use A preferred golf club includes a first alignment mark on a grip of the club and a second alignment mark on the head proximate a centerline of the head. A preferred method for addressing a ball involves positioning the second alignment mark proximate the center of th... | 08/01/2006 |
| 7083526 | Golf putter A golf putter (10) includes a putter head (316) having a putter body (320), a heel weight (344H), a toe weight (344T) and a first sole insert (354F). The putter body (320) includes a heel region (330) and a toe... | 08/01/2006 |
| 7077757 | Curvilinear golf club-head path assisting indicator and method The present invention provides a novel visual golf club-head curvilinear path indicator and method of use. Specifically, the present invention provides a visual golf club-head curvilinear path guide in the form of one or more alignment lines or markings on putters a... | 07/18/2006 |
| 7059972 | Golf club head Disclosed is a golf club head, in which a face surface is divided into upper and lower portions by a boundary line across a position of a sweet spot thereof, a roll radius of the upper portion is set at 305 mm or less, and a roll radius of the lower portion is set a... | 06/13/2006 |
| 7052409 | Planar-parallactic golf alignment aide A Planar-Parallactic Golf Alignment Aide is disclosed. Also disclosed is a device that provides the golfer with a planar alignment sight line for aligning the club face with the target. The invention further provides the golfer with a parallactic alignment sight lin... | 05/30/2006 |
| 7041004 | Putter with rotatable shaft for converting from practice to play The present invention is an improved putter that combines several features to provide a balanced putter, which assists a player in perfecting a putt stroke during practice and repeating it with the same club during play. The shaft is attached to the clubhead such th... | 05/09/2006 |
| 7004849 | Putter A golf putter head adapted for attachment to a club shaft is provided with a face member having a strike face and a cylindrical back cavity, and a body member configured to fit and rotate within the back cavity is disclosed. Selective rotation of the body member wit... | 02/28/2006 |
| 6949028 | Golf putter alignment device to correct for eye predominance A golf putter having visual indicia to correct for misalignment caused by eye predominance, the visual indicia being generally D-shaped with the back line linear portion parallel to the clubface and the arc portion facing forward toward the clubface, with a linear a... | 09/27/2005 |
| 6905420 | Putter head A putter (100) having a club head (20) having a central aperture (32) with a rearward center of gravity is disclosed herein. The club head (20) has a body (22) that is preferably composed of stainless steel. The body (22) ha... | 06/14/2005 |
| 6793588 | Putter head A putter (100) having a club head (20) having a central aperture (32) with a rearward center of gravity is disclosed herein. The club head (20) has a body (22) that is preferably composed of stainless steel. The body (22) ha... | 09/21/2004 |
| 6722998 | Method of applying putter alignment indicator to a putter A method for applying a putter alignment indicator to a putter to aid in aligning the putter during a putting stroke. The method includes providing a substantially planar alignment surface and having a golfer, while standing in the golfer's normal putting stance, pl... | 04/20/2004 |
| 6699139 | Golf collimator and golf club therewith The present invention provides: a golf collimator and a golf club therewith which make it easy for a player to ascertain a straight direction without a tense feeling when holding a golf club at the ready. A golf collimator 1, which is a device to be fixed on a... | 03/02/2004 |
| 6679782 | Putter head A putter (100) having a club head (20) having a central aperture (32) with a rearward center of gravity is disclosed herein. The club head (20) has a body (22) that is preferably composed of stainless steel. The body (22) has a face portion (24), a crown ... | 01/20/2004 |
| 6561918 | Golf collimator and golf club therewith The present invention provides: a golf collimator and a golf club therewith which make it easy for a player to ascertain a straight direction without a tense feeling when holding a golf club at the ready. A golf collimator (1), which is a device to be fix... | 05/13/2003 |