Patents by Inventor Joop Dalstra

Joop Dalstra 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).

  • Publication number: 20240035807
    Abstract: Method and system for inspecting hollow glass products of glass product material, wherein the glass products are manufactured by: a. heating the glass product material; b. forming the heated glass product material into at least one glass product; c. cooling the formed glass product; wherein inspecting the glass products comprises the following steps: d. transporting the glass products formed in step b. successively along a predetermined path along at least one infrared light sensitive sensor wherein, with the at least one sensor, of a plurality of the glass products that are transported successively along the at least one sensor, with the at least one sensor per glass product an image is made, wherein step d. is carried out between steps b. and c.; e. processing the images made in step d. for obtaining information about a wall thickness of the glass products.
    Type: Application
    Filed: November 11, 2021
    Publication date: February 1, 2024
    Applicant: Centrum voor Technische Informatica B.V.
    Inventor: Joop DALSTRA
  • Publication number: 20240029231
    Abstract: Method and system for inspecting hollow glass products of glass product material, wherein the glass products are manufactured by: a. heating the glass product material; b. forming the heated glass product material into a glass product; c. cooling the formed glass product; wherein inspecting the glass products comprises the following steps: d. making a plurality of images of the glass product under a plurality of mutually different viewing directions relative to the product with the aid of a plurality of infrared light sensitive sensors, wherein step d. is carried out between steps b. and c.; e. processing in combination of the plurality of images for obtaining at least one parameter that depends on a wall thickness of the glass product.
    Type: Application
    Filed: November 11, 2021
    Publication date: January 25, 2024
    Applicant: Centrum voor Technische Informatica B.V.
    Inventor: Joop DALSTRA
  • Publication number: 20240013367
    Abstract: Method and system for inspecting hollow glass products of glass product material, wherein the glass products are manufactured by: a. heating the glass product material; b. forming the heated glass product material into at least one glass product; c. cooling the formed glass product; wherein inspecting the glass products comprises the following steps: d. transporting the glass products formed in step b. successively along a predetermined path along at least one infrared light sensitive sensor, wherein with the at least one sensor, of a plurality of the glass products that are transported successively along the at least one sensor, with the at least one sensor per glass product an image is made, wherein step d. is carried out between steps b. and c.; e. processing the images made in step d. for obtaining information about a wall thickness of the glass products.
    Type: Application
    Filed: November 11, 2021
    Publication date: January 11, 2024
    Applicant: Centrum voor Technische Informatica B.V.
    Inventor: Joop DALSTRA
  • Publication number: 20230391654
    Abstract: Method for obtaining information about friction between a heated glass gob and at least one guiding trough through which the glass gob is transported to a mould for forming a glass product from the glass gob using the mould, wherein the glass product is manufactured by: a. forming the heated glass gob; b. transporting the glass gob through at least one guiding trough to the mould; c. forming the glass gob into the glass product using the mould, wherein the method furthermore comprises the following steps: d. making an infrared image of an outer part surface of the at least one guiding trough along which, in use, the gob (while making contact with the outer part surface) is transported; and e. analysing the image for obtaining the information about the friction between the heated glass gob and the outer part surface of the at least one guiding trough along which the glass gob while making contact with the outer part surface is transported.
    Type: Application
    Filed: October 26, 2021
    Publication date: December 7, 2023
    Applicant: CENTRUM VOOR TECHNISCHE INFORMATICA B.V.
    Inventor: Joop DALSTRA
  • Patent number: 11306016
    Abstract: The invention is related to a method of producing glass products from glass product material. Said method comprises the steps of heating the glass product material, shaping the heated glass product material into a glass product, cooling the shaped glass product, and inspecting the shaped glass products by means of at least one sensor sensitive to infrared radiation In said inspecting step a first image of the glass product is taken under a first viewing angle. In addition a second image of said glass product is taken under a second viewing angle which is different from the first viewing angle. The first image is compared with the second image for eliminating parasite reflections. The first and second images are analyzed for detecting whether said glass product is defective or not. An assembly is described for performing said method of producing glass products from glass product material.
    Type: Grant
    Filed: December 13, 2013
    Date of Patent: April 19, 2022
    Assignee: Centrum Voor Techishe Informatica B.V.
    Inventor: Joop Dalstra
  • Patent number: 10435322
    Abstract: Method of filling a mold with a glass gob through an opening of the mold, for forming a glass product in the mold, by using a delivery system for delivering the glass gob to the opening of the mold. The delivery system has an inlet, an outlet, and guiding means for guiding the glass gob through the delivery system. The method includes observing the glass gob, at at least one moment and/or during at least one period after the glass gob has passed the inlet of the delivery system, by using an optical imaging device. The method includes determining a glass gob observation result that includes a glass gob velocity, for predicting a glass distribution of the glass product formed in the mold and/or for controlling a next glass gob.
    Type: Grant
    Filed: July 12, 2017
    Date of Patent: October 8, 2019
    Assignee: Centrum Voor Technische Informatica B. V.
    Inventor: Joop Dalstra
  • Publication number: 20180065878
    Abstract: Method of filling a mould with a glass gob through an opening of the mould, for forming a glass product in the mould, by using a delivery system for delivering the glass gob to the opening of the mould. The delivery system has an inlet, an outlet, and guiding means for guiding the glass gob through the delivery system. The method includes observing the glass gob, at at least one moment and/or during at least one period after the glass gob has passed the inlet of the delivery system, by using an optical imaging device. The method includes determining a glass gob observation result that includes a glass gob velocity, for predicting a glass distribution of the glass product formed in the mould and/or for controlling a next glass gob.
    Type: Application
    Filed: July 12, 2017
    Publication date: March 8, 2018
    Inventor: Joop Dalstra
  • Patent number: 9731991
    Abstract: Method of filling a mould and system for filling a mould. Abstract Method of filling a mould (8) with a glass gob (10) through an opening (12) of the mould (8), for forming a glass product in the mould (8), by using a delivery system (14) for delivering the glass gob to the opening (12) of the mould (8). The delivery system (14) has an inlet (16), an outlet (18), and guiding means (20) for guiding the glass gob through the delivery system (14). The method includes observing the glass gob, at at least one moment and/or during at least one period after the glass gob has passed the inlet (16) of the delivery system (14), by using an optical imaging device (4). The method includes determining a glass gob observation result that includes a glass gob velocity, for predicting a glass distribution of the glass product formed in the mould (8) and/or for controlling a next glass gob.
    Type: Grant
    Filed: October 21, 2008
    Date of Patent: August 15, 2017
    Assignee: Centrum Voor Technische Informatica B.V.
    Inventor: Joop Dalstra
  • Publication number: 20140174127
    Abstract: The invention is related to a method of producing glass products from glass product material. Said method comprises the steps of heating the glass product material, shaping the heated glass product material into a glass product, cooling the shaped glass product, and inspecting the shaped glass products by means of at least one sensor sensitive to infrared radiation In said inspecting step a first image of the glass product is taken under a first viewing angle. In addition a second image of said glass product is taken under a second viewing angle which is different from the first viewing angle. The first image is compared with the second image for eliminating parasite reflections. The first and second images are analyzed for detecting whether said glass product is defective or not. An assembly is described for performing said method of producing glass products from glass product material.
    Type: Application
    Filed: December 13, 2013
    Publication date: June 26, 2014
    Inventor: JOOP DALSTRA
  • Publication number: 20110247363
    Abstract: Method of filling a mould (8) with a glass gob (10) through an opening (12) of the mould (8), for forming a glass product in the mould (8), by using a delivery system (14) for delivering the glass gob to the opening (12) of the mould (8). The delivery system (14) has an inlet (16), an outlet (18), and guiding means (20) for guiding the glass gob through the delivery system (14). The method includes observing the glass gob, at at least one moment and/or during at least one period after the glass gob has passed the inlet (16) of the delivery system (14), by using an optical imaging device (4). The method includes determining a glass gob observation result that includes a glass gob velocity, for predicting a glass distribution of the glass product formed in the mould (8) and/or for controlling ling a next glass gob.
    Type: Application
    Filed: October 21, 2008
    Publication date: October 13, 2011
    Inventor: Joop Dalstra
  • Publication number: 20060096319
    Abstract: An analytical system for analysing and controlling a shaping process for glass products is described. The analytical system comprises an infrared-sensitive measurement system and a processor communicating therewith, the infrared-sensitive measurement system being equipped to measure infrared radiation originating from hot glass products immediately after the shaping process for the glass products and the processor being equipped to determine a heat distribution in the glass products on the basis of information determined by the measurement system. Because the infrared-sensitive measurement system is sensitive only to radiation in the so-called Near Infra Red (NIR) region, radiation originating from the interior of the glass wall can be measured. This makes novel analytical methods possible with which, inter alia, a distinction can be made between a change in glass wall thickness and a change in temperature.
    Type: Application
    Filed: July 30, 2003
    Publication date: May 11, 2006
    Inventor: Joop Dalstra