Patents by Inventor Richard J. Greenleaf

Richard J. Greenleaf 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: 11904375
    Abstract: An elongated securement member for enabling the accurate alignment and securement of a first plate and a second plate together through a configured bore arranged therebetween, the elongated securement member having a first for securement member upper end and a second or securement member lower end. The first or securement member having a longitudinal axis, the upper end of which also having a tapered or wedge inducing non-cylindrical portion, the second or securement member lower end having a threaded portion of a diameter D1 and a middle cylindrical portion of a diameter D2, and an annularly arranged channel formed at a juncture of the tapered or wedge inducing non-cylindrical portion of the securement member upper end and the middle cylindrical portion of diameter D1 of the securement member.
    Type: Grant
    Filed: March 21, 2022
    Date of Patent: February 20, 2024
    Inventor: Richard J. Greenleaf
  • Patent number: 11897018
    Abstract: A tool gripper assembly arrangement for holding a tool accurately in a holder plate. An elongated gripper bore opening is arranged within the holder plate, for receipt of an elongated tool within that gripper bore opening. A pair of thin, flexible, curvilinear gripper wings arranged between the wedge receiving channel and the gripper bore opening. An elongated gripper-wing pressing-wedge arranged within the elongated gripper wedge receiving channel; and a wedge and wedge-channel-engaging adjustment bolt is arranged between adjacent surfaces of the wedge and the wedge receiving channel arranged to bias both the wedge and the pair of gripper wings radially inwardly toward a longitudinal axis of the gripper bore opening, so as to form a perfect tool gripping-circle around and move the tool held within the elongated gripper bore.
    Type: Grant
    Filed: March 1, 2023
    Date of Patent: February 13, 2024
    Inventor: Richard J. Greenleaf
  • Publication number: 20230294155
    Abstract: An elongated securement member for enabling the accurate alignment and securement of a first plate and a second plate together through a configured bore arranged therebetween, the elongated securement member having a first for securement member upper end and a second or securement member lower end. The first or securement member having a longitudinal axis, the upper end of which also having a tapered or wedge inducing non-cylindrical portion, the second or securement member lower end having a threaded portion of a diameter D1 and a middle cylindrical portion of a diameter D2, and an annularly arranged channel formed at a juncture of the tapered or wedge inducing non-cylindrical portion of the securement member upper end and the middle cylindrical portion of diameter D1 of the securement member.
    Type: Application
    Filed: March 21, 2022
    Publication date: September 21, 2023
    Inventor: Richard J. Greenleaf
  • Patent number: 10889020
    Abstract: An arrangement for adjustably enabling the holding of a tool in a tool holder plate for punch press machine. The tool holding arrangement comprises a tool holder plate having a size adjustable tool gripper opening therein. An adjustment bolt bore is arranged adjacent the size adjustable tool gripper opening wherein the adjustment bolt bore has an upper end of conical shape and a lower end opening of pyramidal shape with trapezoidally shaped walls. An expandable adjustment gap is arranged between the size adjustable tool gripper opening and the adjustment bolt bore. A pair of flexure slots are arranged in the tool holder plate, to define a pair of flexible gripper claws therebetween. Changes in the adjustment gap by adjustment of the bolt in the bolt bore enhances the evenly opened size of the tool gripper opening to permit the tool to be properly installed therein.
    Type: Grant
    Filed: March 5, 2020
    Date of Patent: January 12, 2021
    Inventor: Richard J. Greenleaf
  • Patent number: 10807269
    Abstract: A gripping plate assembly for use in a punch press, wherein the gripping plate assembly comprises a planar gripping plate having an upper front side and a lower side, a first bore extending through the gripping plate, for receiving a tool for use in a punch press. A second bore is arranged through the gripping plate having an overlap with the rectilinear groove-cut at the first side of the articulable tab. A threaded bolt is adjustably received in the second bore. The threaded bold has a head with a sloped sidewall for sliding engagement with the sloped first side of the articulable tab so as to provide a displaceable bias thereaginst during rotative advancement or retraction of the threaded bolt within the second bore, thereby effecting a change in the circularity of the wall of the tool receiving first bore.
    Type: Grant
    Filed: February 11, 2019
    Date of Patent: October 20, 2020
    Inventor: Richard J. Greenleaf
  • Publication number: 20200238361
    Abstract: An arrangement for adjustably enabling the holding of a tool in a tool holder plate for punch press machine. The tool holding arrangement comprises a tool holder plate having a size adjustable tool gripper opening therein. An adjustment bolt bore is arranged adjacent the size adjustable tool gripper opening, wherein the adjustment bolt bore has an upper end of conical shape and a lower end opening of pyramidal shape with trapezoidally shaped walls. An expandable adjustment gap is arranged between the size adjustable tool gripper opening and the adjustment bolt bore. A pair of flexure slots are arranged in the tool holder plate, wherein the flexure slots have a first end extending from a location diametrically opposed from one another and adjacent the tool gripper opening to a second location opening in the adjustment bolt bore, and wherein portions of the tool gripper opening, the adjustment gap, the adjustment bolt bore and the flexure slots define a pair of flexible gripper claws therebetween.
    Type: Application
    Filed: March 5, 2020
    Publication date: July 30, 2020
    Inventor: Richard J. Greenleaf
  • Publication number: 20190381555
    Abstract: An elongated securement member for enabling the accurate alignment and securement of a 1st plate and a 2nd plate together through a configured bore arranged therebetween, the elongated securement member having a 1st or securement member upper end and a 2nd or securement member lower end. The 3st or securement member having a longitudinal axis, the upper end of which also having a tapered or wedge inducing non-cylindrical portion, the 2nd or securement member lower end having a threaded portion of a diameter D1 and a middle cylindrical portion of a diameter D2, and an annularly arranged channel formed at a juncture of the tapered or wedge inducing non-cylindrical portion of the securement member upper end and the middle cylindrical portion of diameter D1 of the securement member.
    Type: Application
    Filed: August 20, 2019
    Publication date: December 19, 2019
    Inventor: Richard J. Greenleaf
  • Publication number: 20190176357
    Abstract: A gripping plate assembly for use in a punch press, wherein the gripping plate assembly comprises a planar gripping plate having an upper front side and a lower side, a first bore extending through the gripping plate, for receiving a tool for use in a punch press. The first bore defining an inner wall with a semi-annular groove-cut extending half way around the inner wall of the first bore to define an arcuate flexible finger having a proximal end unitary with the gripping plate, and the flexible finger with a distal end having an articulable rectilinearly shaped tab thereon, the articulable tab peripherally defined by a rectilinear groove-cut therearound, and wherein the articulable tab has a sloped first side. A second bore is arranged through the gripping plate having an overlap with the rectilinear groove-cut at the first side of the articulable tab. A threaded bolt is adjustably received in the second bore.
    Type: Application
    Filed: February 11, 2019
    Publication date: June 13, 2019
    Inventor: Richard J. Greenleaf
  • Patent number: 10201906
    Abstract: A tool gripping and alignment plate arrangement, for accurately gripping and holding a tool in perfect alignment. The alignment plate arrangement comprises a flat unitary tool gripping plate. An irregular bore opening is formed in the tool gripping plate, for gripping a tool therein. The irregular bore wall opening is comprised of a first wall portion of 180 degrees in circumference, and a distortable second wall portion of less than 180 degrees in circumference. A bore-facing tool relief portion is arranged on a distal end of the distortable second wall portion.
    Type: Grant
    Filed: December 14, 2016
    Date of Patent: February 12, 2019
    Inventor: Richard J. Greenleaf
  • Publication number: 20170100850
    Abstract: A tool gripping and alignment plate arrangement, for accurately gripping and holding a tool in perfect alignment. The alignment plate arrangement comprises a flat unitary tool gripping plate. An irregular bore opening is formed in the tool gripping plate, for gripping a tool therein. The irregular bore wall opening is comprised of a first wall portion of 180 degrees in circumference, and a distortable second wall portion of less than 180 degrees in circumference. A bore-facing tool relief portion is arranged on a distal end of the distortable second wall portion.
    Type: Application
    Filed: December 14, 2016
    Publication date: April 13, 2017
    Inventor: Richard J. Greenleaf
  • Publication number: 20160193747
    Abstract: A die press assembly for producing punched parts from a travelling web of material, the die press comprising: a lower die shoe securing a compound punch holder plate thereon, the compound punch holder biasedly gripping a compound punch tool therein, the lower die shoe also supporting a reciprocably movable stripper holder plate, wherein the compound punch extends slideably through a biasedly gripped stripper holder tool in the stripper holder plate; an upper punch holder movable with respect to the lower die shoe, the upper punch holder having a center punch holder plate which biasedly grips a center punch tool therewithin; and a die holder plate fixedly attached to the center punch holder plate with a biasedly gripped die tool slideably enclosing the center punch, wherein each of the biasedly gripped tools are in co-axial alignment in distortable bores in their respective plates.
    Type: Application
    Filed: January 2, 2015
    Publication date: July 7, 2016
    Inventor: Richard J. Greenleaf
  • Patent number: 8925435
    Abstract: A solid tool gripping and alignment plate, for accurately gripping and holding a tool placed therein in perfect alignment. The tool gripping and alignment plate consists of a flat unitary tool gripping plate with a smooth non-circular opening formed in the tool gripping plate for gripping a tool therein fully 360 degrees about a tool's periphery upon adjustment of the gripping plate. A single threaded adjustment member is arranged through a side of the gripping plate for biasing a portion of the smooth non-circular opening in the tool gripping plate from a non-circular shape into the circular shaped opening for circumferentially gripping of a tool therein.
    Type: Grant
    Filed: September 21, 2010
    Date of Patent: January 6, 2015
    Inventor: Richard J. Greenleaf
  • Publication number: 20110067538
    Abstract: A die press assembly for producing punched parts from a travelling web of material, the die press comprising: a lower die shoe securing a compound punch holder plate thereon, the compound punch holder biasedly gripping a compound punch tool therein, the lower die shoe also supporting a reciprocably movable stripper holder plate, wherein the compound punch extends slideably through a biasedly gripped stripper holder tool in the stripper holder plate; an upper punch holder movable with respect to the lower die shoe, the upper punch holder having a center punch holder plate which biasedly grips a center punch tool therewithin; and a die holder plate fixedly attached to the center punch holder plate with a biasedly gripped die tool slideably enclosing the center punch, wherein each of the biasedly gripped tools are in co-axial alignment in distortable bores in their respective plates.
    Type: Application
    Filed: September 21, 2010
    Publication date: March 24, 2011
    Inventor: Richard J. Greenleaf
  • Publication number: 20090044671
    Abstract: A punch press arrangement for the manufacture of a stamped-out part from a sheet of “part” material, comprising a punch member for shaping a part from the part material, and a first shedder pin arranged in the punch member to plastically deform against the part being created to prevent “pulling” and retention of the stamped out part on the punch member on the punch member's return stroke.
    Type: Application
    Filed: June 24, 2008
    Publication date: February 19, 2009
    Inventor: Richard J. Greenleaf
  • Publication number: 20070283795
    Abstract: An elongated punch arrangement for a punch press assembly for punching a sheet metal plug through a die. The punch arrangement comprises an elongated punch having a distal end and a proximal end. A bore is longitudinally arranged in the elongated punch. An elastomeric insert is securably disposed within the bore. The insert has a distal end extending distally beyond the distal end of the punch. The distal end of the insert preferably comprises at least three dome shaped extensions for pressing engagement of a plug during movement of the punch within the die during the punching operation.
    Type: Application
    Filed: June 9, 2006
    Publication date: December 13, 2007
    Inventor: Richard J. Greenleaf
  • Patent number: D561790
    Type: Grant
    Filed: May 4, 2007
    Date of Patent: February 12, 2008
    Inventor: Richard J. Greenleaf
  • Patent number: D585916
    Type: Grant
    Filed: March 27, 2008
    Date of Patent: February 3, 2009
    Inventor: Richard J. Greenleaf
  • Patent number: D615569
    Type: Grant
    Filed: May 4, 2007
    Date of Patent: May 11, 2010
    Inventor: Richard J. Greenleaf
  • Patent number: D629025
    Type: Grant
    Filed: March 27, 2008
    Date of Patent: December 14, 2010
    Inventor: Richard J. Greenleaf