Patents Assigned to Eastman Machine Company
  • Publication number: 20130276606
    Abstract: A cutting tool head for a sheet material cutting machine has a pressure foot mounted by way of linear actuators operable to independently move the pressure foot vertically relative to an eccentric drive mechanism and a knife assembly of the tool head. The knife assembly includes a support shaft driven by the eccentric mechanism, a blade connected to the support shaft, and a splined shaft between the support shaft and blade The splined shaft slides in a splined bushing, and the eccentric mechanism drives reciprocating motion of the support shaft, the splined shaft, and the blade relative to the splined bushing. The splined bushing is rotatable to rotate the splined shaft and blade. A blade sharpener of the tool head has a sharpening disc backed by a magnetic disc to attract the blade into evenly distributed contact with the sharpening surface, and to retain metal shavings on the sharpening disc.
    Type: Application
    Filed: March 14, 2013
    Publication date: October 24, 2013
    Applicant: EASTMAN MACHINE COMPANY
    Inventor: Krzysztof BIERNAT
  • Patent number: 6520057
    Abstract: A system and method for performing operations such as cutting on sheet material such as cloth wherein the sheet material is scanned at an inspection station to determine the existence and location of flaws in the material, the material is transferred to a conveyor where operations such as cutting are performed on the sheet material as it is moved by the conveyor, and the speed of the conveyor and the speed, direction and mode of the operations are controlled all according to a predetermined pattern of operation for the sheet material and the pattern can be re-nested or adjusted in accordance with the existence and location of flaws in the material as determined by the scanning. The operations are performed by controlled gantry-style cutters, and preferably two such cutters are employed wherein a control determines the conveyor speed and determines the portions of the cutting operation to be performed by the respective cutters.
    Type: Grant
    Filed: September 30, 1997
    Date of Patent: February 18, 2003
    Assignee: Eastman Machine Company
    Inventor: Erich F. Steadman
  • Patent number: 6344256
    Abstract: A method and apparatus for perforating sheet material wherein the resulting perforations are in a predetermined pattern which avoids imparting structural weakness to the perforated sheet material. The predetermined pattern includes spaced perforations along linear paths which are spaced along one linear dimension of the sheet material and each of which paths is disposed at an acute angle relative to another linear dimension of the sheet material. The predetermined pattern avoids straight paths of perforations along the longer linear dimension of the sheet material and thereby avoids imparting structural weakness to the material. Preferably the predetermined pattern is a series of herringbone patterns along the longitudinal dimension of the sheet with the rows of herringbone patterns and peaks thereof extending laterally of the sheet material. The pattern is formed by moving the sheet material in a first direction and scanning the material in a second direction with a pulsed laser beam.
    Type: Grant
    Filed: January 11, 2000
    Date of Patent: February 5, 2002
    Assignee: Eastman Machine Company
    Inventor: Erich F. Steadman
  • Patent number: 6013895
    Abstract: A method and apparatus for perforating sheet material wherein the resulting perforations are in a predetermined pattern which avoids imparting structural weakness to the perforated sheet material. The predetermined pattern includes spaced perforations along linear paths which are spaced along one linear dimension of the sheet material and each of which paths is disposed at an acute angle relative to another linear dimension of the sheet material. The predetermined pattern avoids straight paths of perforations along the longer linear dimension of the sheet material and thereby avoids imparting structural weakness to the material. Preferably the predetermined pattern is a series of herringbone patterns along the longitudinal dimension of the sheet with the rows of herringbone patterns and peaks thereof extending laterally of the sheet material. The pattern is formed by moving the sheet material in a first direction and scanning the material in a second direction with a pulsed laser beam.
    Type: Grant
    Filed: September 30, 1997
    Date of Patent: January 11, 2000
    Assignee: Eastman Machine Company
    Inventor: Erich F. Steadman
  • Patent number: 5715738
    Abstract: A skate for an end cutter for cutting sheet material such as cloth as the sheet material lies on a supporting surface having opposite sides, the end cutter comprising an elongated track extending across the supporting surface between the sides and having a longitudinal axis, an exposed surface over which the sheet material lies during cutting thereof, a slot extending along the length thereof and a guide surface spaced from the exposed surface facing the slot and extending along the track in a plane substantially parallel to the longitudinal axis thereof. The skate is elongated, slides along the track, and has an operative surface facing the guide surface of the track. A bracket extends from the skate through the slot in the track member, and a blade is carried by the bracket and extends into the slot for cutting sheet material lying on the exposed surface of the track as the skate slide therealong.
    Type: Grant
    Filed: September 20, 1994
    Date of Patent: February 10, 1998
    Assignee: Eastman Machine Company
    Inventor: Robert M. Yetman
  • Patent number: 5704603
    Abstract: In a cloth spreading machine having a motor-driven cradle for holding a roll of cloth and feeding cloth from the roll onto a supporting surface along which the machine travels, a first signal is provided which is proportional to the speed of travel of the machine, a second signal is provided which is proportional to the rate of feed of cloth from the roll, and a control responsive to the first and second signals provides a signal for controlling the speed of the cradle motor so that the rate of feed of cloth from the roll is substantially equal to the speed of travel of the machine along the surface. Sudden changes in tension on the cloth due to acceleration or deceleration of the machine cause movements in a dancer bar which are converted by a transducer to an input to the control for causing a relatively rapid compensating increase or decrease in the speed of the cradle motor.
    Type: Grant
    Filed: September 20, 1995
    Date of Patent: January 6, 1998
    Assignee: Eastman Machine Company
    Inventors: Andrew A. Nalecz, Robert M. Yetman
  • Patent number: 5522664
    Abstract: The present invention relates to an assembly, especially an assembly which provides precision guidance of a lighting member.
    Type: Grant
    Filed: July 14, 1994
    Date of Patent: June 4, 1996
    Assignee: Eastman Machine Company Limited
    Inventor: Ray Hudson
  • Patent number: 5288061
    Abstract: A pin for use in apparatus for supporting sheet material such as cloth during operations such as cutting performed thereon comprising a supporting frame, a planar supporting surface on the frame for receiving plies of sheet material placed thereon, the surface having at least one through aperture therein and the surface having an outer portion contacting the material and an oppositely disposed portion, a pin holding and supporting arrangement carried by the frame and facing the oppositely disposed portion of the supporting surface, the holding and supporting surface for receiving a pin and maintaining the disposition of the pin substantially perpendicular to the plane of the surface and the location of the pin in registry with the aperture, a mechanism carried by the frame for moving the holding and supporting arrangement to move the pin through the aperture so that sheet material can be anchored on the pin, the pin comprising an elongated body having a substantially constant cross sectional dimension along s
    Type: Grant
    Filed: February 28, 1992
    Date of Patent: February 22, 1994
    Assignee: Eastman Machine Company
    Inventor: Robert J. Pieroni
  • Patent number: 5178232
    Abstract: A lubrication system for a cutting machine such as a cloth cutting machine. The lubricant reservoir is provided within a housing portion so as to protect it from damage when the machine is laid on its side. An easily removable wicking module is provided with an end adjacent a reservoir outlet so that only a short feeder wick need be provided for transmission of lubricant into the module.
    Type: Grant
    Filed: May 31, 1991
    Date of Patent: January 12, 1993
    Assignee: Eastman Machine Company
    Inventors: Lester C. Bennett, Robert J. Pieroni
  • Patent number: 5111582
    Abstract: An ergonomic handle mechanism for a cutting machine having a vertically reciprocating knife. The position of the handle between a horizontal orientation and an orientation at an angle thereto is adjustable for greater comfort as well as a longer working time without tiring so that greater productivity may be achieved. A link to which the handle is attached is pivotally mounted to a block which is fixedly attached to the machine housing. A pin having an eccentric portion received in a groove in the link is provided to determine handle position by the rotational position of the pin. A projection is provided on the block for limiting the pivotal movement of the link and thus acting as a stop in case of pin breakage.
    Type: Grant
    Filed: September 9, 1991
    Date of Patent: May 12, 1992
    Assignee: Eastman Machine Company
    Inventor: Robert J. Pieroni
  • Patent number: 5090669
    Abstract: A method and apparatus for supporting sheet material such as cloth during operations thereon such as cutting wherein a pattern is placed on a supporting surface provided with a plurality of pins extending through apertures in the surface, the pins are lowered below the surface for removal of the pattern whereupon sheet material is placed on the surface, typically a plurality of plies being layed up in a stack, and simultaneously the pins are moved through the sheet material to maintain alignment and matching of the plies in the stack. The pattern then is placed on the sheet material in a position determined by the location of the pins, and the material is shaped such as by cutting.A plurality of separate pin holding and supporting devices, each of relatively narrow width, are provided in spaced relation lengthwise along the apparatus and are independently movable lengthwise toward and away from each other.
    Type: Grant
    Filed: December 11, 1990
    Date of Patent: February 25, 1992
    Assignee: Eastman Machine Company
    Inventor: Robert J. Pieroni
  • Patent number: 5063800
    Abstract: A method and apparatus for supporting sheet material such as cloth during operations thereon such as cutting wherein a pattern is placed on a supporting surface provided with a plurality of pins extending through apertures in the surface, the pins are lowered below the surface for removal of the pattern whereupon sheet material is placed on the surface, typically a plurality of plies being layed up in a stack, and simultaneously the pins are moved through the sheet material to maintain alignment and matching of the plies in the stack. The pattern then is placed on the sheet material in a position determined by the location of the pins, and the material is shaped such as by cutting. A plurality of separate pin holding and supporting devices of narrow width are spaced lengthwise along the apparatus and independently movable lengthwise toward and away from each other. Pins of adjacent rows can be closely spaced together thereby achieving a grid pattern wherein the pins are relatively closely spaced.
    Type: Grant
    Filed: September 18, 1989
    Date of Patent: November 12, 1991
    Assignee: Eastman Machine Company
    Inventors: Rolf Jung, Jack M. Schwartzott, Robert J. Pieroni, Arnold Tobler
  • Patent number: 5018713
    Abstract: A cloth-spreading apparatus having an improved control for controlling the movement of a carriage assembly across an elongated table. The control includes one or more sensors in the form of photoelectric eyes (52-58) which are capable of sensing a light-reflective medium (60, 76) and nonreflective surfaces (72, 74 or 78), which sensed positions are processed by a controller (50) to cause an electric motor (42) to be slowed down when the carriage assembly (24) reaches a slowdown position and to be stopped or reversed when a stop position is attained. The sensors are in an "on" state when the carriage assembly is moving and in an "off" state when the carriage assembly is not moving.
    Type: Grant
    Filed: September 15, 1989
    Date of Patent: May 28, 1991
    Assignee: Eastman Machine Company
    Inventors: Rolf Jung, Andrew A. Nalecz
  • Patent number: 4779500
    Abstract: Apparatus for cutting sheet material such as cloth as the material lies on a supporting surface having opposite sides comprising an elongated track adapted to extend across the supporting surface between the sides, the track having an operative surface over which the sheet material lies during cutting thereof, and a cutter operatively associated with the track for movement in opposite directions along the track for cutting the material.
    Type: Grant
    Filed: September 19, 1986
    Date of Patent: October 25, 1988
    Assignee: Eastman Machine Company
    Inventors: Lester C. Bennett, John H. Buscher, Andrzej Nalecz
  • Patent number: 4761878
    Abstract: An electrical connector for supplying electrical power to a machine at particular voltage and phase magnitudes selected, the connector having one part adapted to be mechanically and electrically connected to the machine and another part adapted to be electrically connected to a conductor providing the electrical power to be supplied. The connector comprises a plurality of pins on one of the connector parts and a corresponding plurality of mating slots on the other of the connector parts adapted to receive the pins when the connector parts are connected together. One of the pins and the corresponding one of the mating slots serve to complete an electrical ground circuit and have a fixed orientation independent of the selected voltage and phase magnitude for the particular connector.
    Type: Grant
    Filed: August 20, 1986
    Date of Patent: August 9, 1988
    Assignee: Eastman Machine Company
    Inventors: John H. Buscher, Michael E. Hoffman
  • Patent number: 4728089
    Abstract: A cloth spreading apparatus 10 for spreading cloth from a cloth roll 16 supported by an expandable mandrel 20 onto a work surface 14. The apparatus includes a carriage assembly 24 movable on the work surface between first and second locations. A mounting frame assembly 26 is carried by the carriage and includes a shiftable subframe 118, 120, 122, 124, 126 and 128, a first pivotal portion 94 supported on the subframe and a second portion 96 rotatable 180.degree., the second portion being carried by the pivotal portion. A shifting motor 74 is provided to shift the subframe in response to a cloth edge sensing apparatus 58. A motor driven screw operated scissors jack assembly 102 is provided to pivot the pivotal portion. A cantilevered spring 200 is disposed between the pivotal portion and the rotatable portion and initially accelerates and then decelerates the rotatable portion as it moves 180.degree. from one position to another.
    Type: Grant
    Filed: August 28, 1986
    Date of Patent: March 1, 1988
    Assignee: Eastman Machine Company
    Inventor: Robert C. Barrett
  • Patent number: 4712303
    Abstract: A cutting machine comprising a housing having a base, a motor carried by the housing, a knife blade having a cutting edge and carried by the housing for reciprocal motion generally normal to the base in response to operation of the motor, a presser foot movably carried by the housing located in spaced relation to the blade cutting edge and movable toward and away from the base, and characterized by an elongated guard connected to the presser foot and located closely adjacent the blade edge and guided supported in the housing for movement along the blade edge in response to movement of the presser foot toward and away from the base. There is included an arrangement for releasing the presser foot when the motor is turned off allowing the pressure foot to rest on or near the base and maintain the guard in place along the blade edge when the motor is off.
    Type: Grant
    Filed: February 11, 1985
    Date of Patent: December 15, 1987
    Assignee: Eastman Machine Company
    Inventor: Robert C. Barrett
  • Patent number: 4609244
    Abstract: An electrical connector for supplying electrical power to a machine at particular voltage and phase magnitudes selected, the connector having one part adapted to be mechanically and electrically connected to the machine and another part adapted to be electrically connected to a conductor providing the electrical power to be supplied. The connector comprises a plurality of pins on one of the connector parts and a corresponding plurality of mating slots on the other of the connector parts adapted to receive the pins when the connector parts are connected together. One of the pins and the corresponding one of the mating slots serve to complete a electrical ground circuit and have a fixed orientation independent of the selected voltage and phase magnitude for the particular connector.
    Type: Grant
    Filed: September 30, 1982
    Date of Patent: September 2, 1986
    Assignee: Eastman Machine Company
    Inventors: John H. Buscher, Michael E. Hoffman
  • Patent number: 4554738
    Abstract: Apparatus for supporting and guiding a machine for operating on sheet material such as cloth while the material lies on a surface of a supporting structure having a pair of substantially parallel sides extending lengthwise of the structure, the apparatus comprising a carriage adapted for movement lengthwise of the supporting structure along a path substantially parallel to the sides, a guide arm on the carriage extending across the supporting surface between the sides and spaced from the surface, and a support arm connected to the guide arm extending at an angle thereto and located in spaced relation to the supporting surface, the support arm carrying at one end a machine for operating on the sheet material, and the support arm being pivotally movable about an axis substantially parallel to the longitudinal axis of the guide arm and along a plane disposed substantially perpendicular to the supporting surface.
    Type: Grant
    Filed: September 15, 1983
    Date of Patent: November 26, 1985
    Assignee: Eastman Machine Company
    Inventors: Robert C. Barrett, John H. Buscher, William M. Putnam
  • Patent number: D281416
    Type: Grant
    Filed: September 30, 1982
    Date of Patent: November 19, 1985
    Assignee: Eastman Machine Company
    Inventors: John H. Buscher, Michael E. Hoffman