Patents by Inventor Joop Frans Hoekstra

Joop Frans Hoekstra 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: 6666327
    Abstract: In one embodiment, a conveyor comprises identical carriages and apparatus for connecting the carriages end-to-end. The carriages each include first wheel pairs supported for a rotation about spaced apart parallel axes and a second wheel pair supported for rotation about a perpendicular axis. The first and second wheel pairs are rotatably supported by self-lubricated bearings. The connection apparatus may comprise either connection rods or a wire rope. In another embodiment, the conveyor comprises identical links each including first and second link portions. The link portions are pivotally interconnected by a first connecting pin which also supports a first pair of wheels. Adjacent links are interconnected by a second connecting pin which also supports a second wheel pair. The first and second wheel pairs are rotatably supported by self-lubricated bearings.
    Type: Grant
    Filed: December 4, 2002
    Date of Patent: December 23, 2003
    Assignee: Sig Simonazzi North America, Inc.
    Inventors: Leonard R. Kilby, John M. Lucido, Joop Frans Hoekstra
  • Patent number: 6615977
    Abstract: In one embodiment, a conveyor comprises identical carriages and apparatus for connecting the carriages end-to-end. The carriages each include first wheel pairs supported for a rotation about spaced apart parallel axes and a second wheel pair supported for rotation about a perpendicular axis. The first and second wheel pairs are rotatably supported by self-lubricated bearings. The connection apparatus may comprise either connection rods or a wire rope. In another embodiment, the conveyor comprises identical links each including first and second link portions. The link portions are pivotally interconnected by a first connecting pin which also supports a first pair of wheels. Adjacent links are interconnected by a second connecting pin which also supports a second wheel pair. The first and second wheel pairs are rotatably supported by self-lubricated bearings.
    Type: Grant
    Filed: October 18, 2001
    Date of Patent: September 9, 2003
    Assignee: Sig Simonazzi North America, Inc.
    Inventors: Leonard R. Kilby, John M. Lucido, Joop Frans Hoekstra
  • Publication number: 20030079969
    Abstract: In one embodiment, a conveyor comprises identical carriages and apparatus for connecting the carriages end. The carriages each include first wheel pairs supported for a rotation about spaced apart parallel axes and a second wheel pair supported for rotation about a perpendicular axis. The first and second wheel pairs are rotatably supported by self-lubricated bearings. The connection apparatus may comprise either connection rods or a wire rope. In another embodiment, the conveyor comprises identical links each including first and second link portions. The link portions are pivotally interconnected by a first connecting pin which also supports a first pair of wheels. Adjacent links are interconnected by a second connecting pin which also supports a second wheel pair. The first and second wheel pairs are rotatably supported by self-lubricated bearings.
    Type: Application
    Filed: December 4, 2002
    Publication date: May 1, 2003
    Applicant: Sig Simonazzi North America, Inc.
    Inventors: Leonard R. Kilby, John M. Lucido, Joop Frans Hoekstra
  • Publication number: 20020060143
    Abstract: In one embodiment, a conveyor comprises identical carriages and apparatus for connecting the carriages end. The carriages each include first wheel pairs supported for a rotation about spaced apart parallel axes and a second wheel pair supported for rotation about a perpendicular axis. The first and second wheel pairs are rotatably supported by self-lubricated bearings. The connection apparatus may comprise either connection rods or a wire rope. In another embodiment, the conveyor comprises identical links each including first and second link portions. The link portions are pivotally interconnected by a first connecting pin which also supports a first pair of wheels. Adjacent links are interconnected by a second connecting pin which also supports a second wheel pair. The first: and second wheel pairs are rotatably supported by self-lubricated bearings.
    Type: Application
    Filed: October 18, 2001
    Publication date: May 23, 2002
    Applicant: SASIB North America, Inc.
    Inventors: Leonard R. Kilby, John M. Lucido, Joop Frans Hoekstra
  • Patent number: 6382403
    Abstract: In one embodiment, a conveyor comprises identical carriages and apparatus for connecting the carriages end-to-end. The carriages each include first wheel pairs supported for a rotation about spaced apart parallel axes and a second wheel pair supported for rotation about a perpendicular axis. The first and second wheel pairs are rotatably supported by self-lubricated bearings. The connection apparatus may comprise either connection rods or a wire rope. In another embodiment, the conveyor comprises identical links each including first and second link portions. The link portions are pivotally interconnected by a first connecting pin which also supports a first pair of wheels. Adjacent links are interconnected by a second connecting pin which also supports a second wheel pair. The first and second wheel pairs are rotatably supported by self-lubricated bearings.
    Type: Grant
    Filed: August 15, 2001
    Date of Patent: May 7, 2002
    Assignee: Sig Simonazzi North America, Inc.
    Inventors: Leonard R. Kilby, John M. Lucido, Joop Frans Hoekstra
  • Publication number: 20020027061
    Abstract: In one embodiment, a conveyor comprises identical carriages and apparatus for connecting the carriages end. The carriages each include first wheel pairs supported for a rotation about spaced apart parallel axes and a second wheel pair supported for rotation about a perpendicular axis. The first and second wheel pairs are rotatably supported by self-lubricated bearings. The connection apparatus may comprise either connection rods or a wire rope. In another embodiment, the conveyor comprises identical links each including first and second link portions. The link portions are pivotally interconnected by a first connecting pin which also supports a first pair of wheels. Adjacent links are interconnected by a second connecting pin which also supports a second wheel pair. The first and second wheel pairs are rotatably supported by self-lubricated bearings.
    Type: Application
    Filed: August 15, 2001
    Publication date: March 7, 2002
    Applicant: SASIB North America, Inc.
    Inventors: Leonard R. Kilby, John M. Lucido, Joop Frans Hoekstra
  • Patent number: 6321895
    Abstract: In one embodiment, a conveyor comprises identical carriages and apparatus for connecting the carriages end-to-end. The carriages each include first wheel pairs supported for a rotation about spaced apart parallel axes and a second wheel pair supported for rotation about a perpendicular axis. The first and second wheel pairs are rotatably supported by self-lubricated bearings. The connection apparatus may comprise either connection rods or a wire rope. In another embodiment, the conveyor comprises identical links each including first and second link portions. The link portions are pivotally interconnected by a first connecting pin which also supports a first pair of wheels. Adjacent links are interconnected by a second connecting pin which also supports a second wheel pair. The first and second wheel pairs are rotatably supported by self-lubricated bearings.
    Type: Grant
    Filed: April 19, 2001
    Date of Patent: November 27, 2001
    Assignee: Sasib North America, Inc.
    Inventors: Leonard R. Kilby, John M. Lucido, Joop Frans Hoekstra
  • Patent number: 6293390
    Abstract: In one embodiment, a conveyor comprises identical carriages and apparatus for connecting the carriages end to end. The carriages each include first wheel pairs supported for rotation about spaced apart parallel axes and a second wheel pair supported for rotation about a perpendicular axis. The first and second wheel pairs are rotatably supported by self-lubricated bearings. The connection apparatus may comprise either connection rods or a wire rope. In another embodiment, the conveyor comprises identical links each including first and second link portions. The link portions are pivotally interconnected by a first connecting pin which also supports a first pair of wheels. Adjacent links are interconnected by a second connecting pin which also supports a second wheel pair. The first and second wheel pairs are rotatably supported by self-lubricated bearings.
    Type: Grant
    Filed: February 23, 2001
    Date of Patent: September 25, 2001
    Assignee: SASIB North America, Inc.
    Inventors: Leonard R. Kilby, John M. Lucido, Joop Frans Hoekstra
  • Patent number: 6257397
    Abstract: In one embodiment, a conveyor comprises identical carriages and apparatus for connecting the carriages end to end. The carriages each include first wheel pairs supported for a rotation about spaced apart parallel axes and a second wheel pair supported for rotation about a perpendicular axis. The first and second wheel pairs are rotatably supported by self-lubricated bearings. The connection apparatus may comprise either connection rods or a wire rope. In another embodiment, the conveyor comprises identical links each including first and second link portions. The link portions are pivotally interconnected by a first connecting pin which also supports a first pair of wheels. Adjacent links are interconnected by a second connecting pin which also supports a second wheel pair. The first and second wheel pairs are rotatably supported by self-lubricated bearings.
    Type: Grant
    Filed: September 23, 1999
    Date of Patent: July 10, 2001
    Assignee: Sasib North America, Inc.
    Inventors: Leonard R. Kilby, John M. Lucido, Joop Frans Hoekstra
  • Patent number: 4046287
    Abstract: A system and method for automatically metering and dispensing a plurality of fluids such as paint components is disclosed, including an operator input station for selecting the desired combination of metered fluids, a scanner drive subsystem for positioning a metering unit at appropriate fluid component storage stations, an automatic valving subsystem for controlling the flow of the selected metered component, a metering subsystem having a unit for measuring the proper volume of fluid component to be dispensed, and a dispensing subsystem for feeding the metered quantity into a receptacle. The apparatus may be operated automatically under electrical control of a control subsystem with pre-stored fluid formulations, wherein the desired mixture is identified and the pre-stored formulations enable precise metering of fluid components, or manually where each of the fluid components is manually selected and proportioned by the operator.
    Type: Grant
    Filed: May 10, 1976
    Date of Patent: September 6, 1977
    Assignee: Graco Inc.
    Inventors: Joop Frans Hoekstra, Donovan Harold Lumby, William Duncan Vork