Patents by Inventor John D. Jacobson

John D. Jacobson 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: 5730017
    Abstract: A cutter unit for mounting to a slide on a spring coiling machine, comprising a holder having an arm portion, extending along a first direction, for mounting to the coiling machine and a head portion extending along a second direction perpendicular to the first direction and defining an adjustable bore having an axis which extends in a third direction perpendicular to the first and second directions. A plug is insertable coaxially within the adjustable bore and sized to provide axial and rotational degrees of freedom within the bore. The plug includes a front face having a slot oriented transversely to the axis of the bore and sized to receive a cutting tool, and screws or the like for fixing the tool in the slot. A bolt or the like is carried by the head portion, for adjusting the bore to selectively permit axial and rotational movement of the insert therein, and to prevent said movement.
    Type: Grant
    Filed: July 28, 1995
    Date of Patent: March 24, 1998
    Assignee: Newcomb Spring Corporation
    Inventor: John D. Jacobson
  • Patent number: 5647240
    Abstract: A spring coiling machine wherein the pitch tool holder has two active plates which act as a clamp on the stem of the pitch tool. Preferably, the clamping plates are carried on a support based plate or the like, which is moveable linearly in a direction parallel to the pitch stem axis.
    Type: Grant
    Filed: July 28, 1995
    Date of Patent: July 15, 1997
    Assignee: Newcomb Spring Corporation
    Inventor: John D. Jacobson
  • Patent number: 5259227
    Abstract: A chuck and arbor apparatus for a spring coiling machine implements an accurate alignment of the block wire guide with the feed line guides from the wire supply rolls. The chuck is modified to provide for discrete, axial clamping positions which correspond to selected wire alignment positions. The arbor is preferably D-shaped to establish a repeatable angular orientation in the chuck, and avoid the need to clamp the arbor while clamping the chuck.
    Type: Grant
    Filed: April 28, 1992
    Date of Patent: November 9, 1993
    Assignee: Newcomb Spring Corporation
    Inventor: John D. Jacobson
  • Patent number: 5218780
    Abstract: The inventive method for rigging dead bait comprises the steps of selecting a wire leader having first and second ends, passing the second end of the leader through the eye of a fishing hook and forming a loop through said eye. With the second end of the wire, a pin projecting radially from the leader adjacent the loop is formed. The angler slides a coiled wire retainer coaxially along the leader wire such that a larger diameter, open-ended base of the coil faces the pin. The angler forms another loop at the first end of the wire, thereby trapping the coil between the other loop and the pin. After the hook is inserted through the gill of the bait, the retainer is twisted onto the snout so that the free end engages the pin and locks the pin while the retainer confines the snout like a muzzle.
    Type: Grant
    Filed: November 1, 1991
    Date of Patent: June 15, 1993
    Assignee: Optimum Innovations, Inc.
    Inventor: John D. Jacobson
  • Patent number: 5218882
    Abstract: The hub body has an annular support region, spacer regions on either side of the support region, and threaded regions at the axial ends. Each threaded region has an axially extending slot. First and second cam rings, which each have an inner opening with an effective diameter that is less than the outer diameter of the support region and substantially equal to the outer diameter of the spacer regions, are situated in respective spacer regions in abutting relationship with respective sides of the support ring. Respective first and second spacer rings having inner diameters substantially equal to those of the cams, are also situated in the spacer region in abutting relationship with the cams, so that each cam is sandwiched between one side of the support region and a spacer ring. Each spacer ring has a tab or key member projecting radially inwardly from the spacer ring inner diameter into the slot.
    Type: Grant
    Filed: February 18, 1992
    Date of Patent: June 15, 1993
    Assignee: Newcomb Spring Corporation
    Inventor: John D. Jacobson
  • Patent number: 5201208
    Abstract: A coiling point holder for a spring making machine precisely fixes the angular and axial position of the coiling point relative to the holder and allows for the pre-established coiling point positions to be replicated upon reversing or replacing the coiling point. The angular position of the coiling point is fixed by a diametral slot of an insert which is angularly fixed in the holder.
    Type: Grant
    Filed: November 4, 1991
    Date of Patent: April 13, 1993
    Assignee: Newcomb Spring Corporation
    Inventor: John D. Jacobson
  • Patent number: 5131251
    Abstract: A chuck and arbor apparatus for a spring coiling machine implements an accurate alignment of the block wire guide with the feed line guides from the wire supply rolls. The chuck is modified to provide for discrete, axial clamping positions which correspond to selected wire alignment positions. The arbor is preferably D-shaped to establish a repeatable angular orientation in the chuck, and avoid the need to clamp the arbor while clamping the chuck.
    Type: Grant
    Filed: October 4, 1991
    Date of Patent: July 21, 1992
    Assignee: Newcomb Spring Corporation
    Inventor: John D. Jacobson
  • Patent number: 4049315
    Abstract: A chair of unique styling and design having discrete members constituting a back and support therefor, a seat support and a seat. The back and support and seat support are connected together along the lower portions thereof at selected discrete points. The seat is also connected to the seat support at selected discrete points.
    Type: Grant
    Filed: December 13, 1976
    Date of Patent: September 20, 1977
    Inventor: John D. Jacobson
  • Patent number: D371087
    Type: Grant
    Filed: June 12, 1995
    Date of Patent: June 25, 1996
    Assignee: Newcomb Spring Corporation
    Inventor: John D. Jacobson
  • Patent number: D374638
    Type: Grant
    Filed: June 12, 1995
    Date of Patent: October 15, 1996
    Assignee: Newcomb Spring Corporation
    Inventors: John D. Jacobson, Brian P. Kranz
  • Patent number: D378809
    Type: Grant
    Filed: March 6, 1996
    Date of Patent: April 15, 1997
    Assignee: Newcomb Spring Corporation
    Inventors: John D. Jacobson, Brian P. Kranz