Patents by Inventor Earl H. Hoyt, Jr.

Earl H. Hoyt, Jr. has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 5592929
    Abstract: Apparatus and method for aligning the limbs of a recurve bow, the limbs being mounted in pockets at ends of a handle, the limbs having a slot in a butt end parallel edges of which embrace a pull-weight adjusting spool. Each of the pockets has a channel in which a button, mounted on the limb, has a head that floats in the channel. Set screws mounted in the side walls of the channel bear against opposite edge surfaces of the button, whereby the limb can be caused to move about the adjusting spool as a pivot to bring the two limbs into alignment.
    Type: Grant
    Filed: March 3, 1995
    Date of Patent: January 14, 1997
    Inventor: Earl H. Hoyt, Jr.
  • Patent number: 4819608
    Abstract: A laminated archery bow limb has a relatively light weight core consisting of a plurality of hollow micro spheres in a matrix of hard synthetic resin and formed as a tapered strip of "syntactic foam" material with relatively thin facing and backing strips of high tensile and compressive strengths and a high rate of recovery glued to opposite sides thereof. In a second form of bow limb construction the core material further includes, in addition to the hollow micro spheres, reinforcing fibres to increase the physical strength thereof.
    Type: Grant
    Filed: August 24, 1987
    Date of Patent: April 11, 1989
    Assignee: Hoyt/Easton Archery Co.
    Inventors: Gary W. Filice, Earl H. Hoyt, Jr.
  • Patent number: 4448183
    Abstract: The free end portions of the cables of a two-wheel type compound bow are extended to the back of the bow over pulleys rotatably mounted on the wheel shafts, the cable ends are fixed in one end of screws movable longitudinally in bores in adjacent anchor members fixed to the back of the bow and nuts threadedly engaged on the screws and bearing against the anchor members move the screws longitudinally when turned. In a modification anchor members on the front side of the bow are connected to the wheel shafts by flexible loops extending over small pulleys on the shafts and the free ends of the cables are mounted for free rotation in hollow screws threadedly engaged and screw threaded through bores in the anchor members.
    Type: Grant
    Filed: March 2, 1982
    Date of Patent: May 15, 1984
    Assignee: Hoyt/Easton Archery Co.
    Inventors: Miguel A. Quartino, Earl H. Hoyt, Jr.
  • Patent number: 4091790
    Abstract: The handle section of a take down bow has a socket at each end loosely receiving the butt ends of upper and lower bow limbs arranged to pivot both fore and aft and laterally on outer end portions of the rear socket walls; adjusting screws extending through inner end portions of the forward socket walls engage the forward faces of the bow limbs to variably tilt them fore and aft in the plane including the low and the bow string, and camming members rotatably mounted in inner end portions of the rear socket walls have eccentric portions extending into and engaging laterally opposed surfaces of notches in the ends of the bow limbs to variably pivot the limbs laterally.
    Type: Grant
    Filed: February 16, 1977
    Date of Patent: May 30, 1978
    Inventor: Earl H. Hoyt, Jr.
  • Patent number: 4054121
    Abstract: A device for mounting a pair of stabilizers for adjustable angular projection from opposite sides of a bow includes a transverse mounting bar attached to a face of a bow and extending from opposite sides thereof; a rotatably adjustable member is mounted on each end of the bar for rotation on an axis longitudinallly of the bar; each member has one or more screw threaded bores therein lying at an acute angle to an outward projection of its axis of rotation adapted to receive a screw threaded stabilizer rod.In another form of the invention a first rotatably adjustable member is mounted on each end of a transverse mounting bar for rotation on an axis longitudinally of the bar and a second rotatably adjustable member is mounted for rotation on each of the first members on an axis perpendicular to the mounting bar; the second members each have a screw threaded bore therein perpendicular to its axis of rotation receiving a screw threaded stabilizer rod.
    Type: Grant
    Filed: August 23, 1976
    Date of Patent: October 18, 1977
    Inventor: Earl H. Hoyt, Jr.