Patents by Inventor Eustathios Vassiliou

Eustathios Vassiliou 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: 7784159
    Abstract: This invention relates to a spring fastener, which comprises engagement springs in opposite sides of the fastener. Each engagement spring has an engagement region comprising a hindrance portion, which increases considerably the removal to insertion force ratio as compared to such ratio in the absence of the hindrance portion, thus permitting very easy insertion with considerably more difficult removal of the fastener from the slot of a panel, which provides an efficient ergonomically balanced removal to insertion force ratio. The hindrance portion comprises ripples or other hindrance elements of unexpectedly minute dimensions for providing this efficient ergonomic force balance. The combination of the above structures with the presence of barbs being bent at their front portion improves immensely the ergonomic character of the devices.
    Type: Grant
    Filed: October 24, 2003
    Date of Patent: August 31, 2010
    Assignee: Termax Corporation
    Inventors: Daniel James Dickinson, Michael Walter Smith, Lawrence John Conway, Edward Sacha, Paul Lester Clemens, Mark Fleydervish, Richard H. Ducato, Eustathios Vassiliou
  • Patent number: 7640634
    Abstract: Fasteners characterized by structures which are suitable to be engaged reversibly in a slot of a rigid part, such as a metal sheet or the frame of a car for example. The structure provides easy insertion but difficult extraction of the fastener from the slot, without producing squeaking noises during end-use. Easy manufacturing and high dimensional accuracy are also great assets of the fasteners. The invention also pertains to an assembly of said rigid part and the fastener, an assembly connecting parts with the fastener of this invention, as well as vehicles comprising such assemblies.
    Type: Grant
    Filed: May 26, 2005
    Date of Patent: January 5, 2010
    Assignee: Termax Corporation
    Inventor: Eustathios Vassiliou
  • Patent number: 7572089
    Abstract: The present invention pertains fasteners with critical configuration of the barbs, which allows the fasteners to be used in slots of various widths and panels of various thicknesses, and prevents rattling, which would take place in the case of fasteners of the present state of the art. The critical configuration is based on the special dimensions and special shape of the barbs with regard to the parts and the slots involved in assemblies of the fasteners and the parts. The present invention also pertains assemblies of miscellaneous parts connected together by means of the fasteners, as well as vehicles comprising such assemblies. In addition, the present invention comprises fasteners providing a combination of low barbs and high bent barbs, which combination prevents rattling of the fastener and allows secure attachment on a part, such as a sheet metal, for example.
    Type: Grant
    Filed: September 3, 2004
    Date of Patent: August 11, 2009
    Assignee: Termax Corporation
    Inventors: Joseph William Lowry, Eustathios Vassiliou
  • Patent number: 7223972
    Abstract: An analytical instrument, such as a mass spectrometer, the instrument having a magnetic section with a controllable electromagnetic field. Controlling the electromagnetic field is accomplished by controlling a temperature of a base plate within the magnetic section, by controlling a current passing through an electromagnetic coil disposed within the magnetic, by disposing a magnetic shunt across a portion of a yoke of the magnet, or by any of the above either independently or in combination. The magnetic shunt is configured to have a temperature coefficient of remnant flux density that is opposite the temperature coefficient of remnant flux density of a first pair of permanent magnets located within the magnetic section.
    Type: Grant
    Filed: March 31, 2005
    Date of Patent: May 29, 2007
    Assignee: OI Corporation
    Inventors: Eustathios Vassiliou, Gottfried P. Kibelka
  • Patent number: 6979818
    Abstract: A mass spectrometer suitable to measure both positive and negative particles, such as ions for example in a vacuum chamber. This spectrometer is provided with a turnable permanent magnet segment, which provides the gap of a yoke with adequate magnetic flux having the appropriate direction to separate the positive or the negative particles. Changing the polarity adjusts the flight path of the ions. Thus, negatively charged ions and positively charged ions will follow similar flight paths under opposite polarities, permitting the use of a single array of detectors. One or more coils may be used in place of or in addition to the turnable permanent magnet segment in order to provide the appropriate magnetic flux to the gap, and/or facilitate the turning process of the turnable magnet segment. The turnable magnet and/or the coils may be inside or outside the vacuum chamber.
    Type: Grant
    Filed: June 3, 2004
    Date of Patent: December 27, 2005
    Assignee: OI Corporation
    Inventors: Adi A. Scheidemann, Mark W. Dassel, Mark Wadsworth, Eustathios Vassiliou
  • Publication number: 20050263714
    Abstract: An analytical instrument, such as a mass spectrometer, the instrument having a magnetic section with a controllable electromagnetic field. Controlling the electromagnetic field is accomplished by controlling a temperature of a base plate within the magnetic section, by controlling a current passing through an electromagnetic coil disposed within the magnetic, by disposing a magnetic shunt across a portion of a yoke of the magnet, or by any of the above either independently or in combination. The magnetic shunt is configured to have a temperature coefficient of remnant flux density that is opposite the temperature coefficient of remnant flux density of a first pair of permanent magnets located within the magnetic section.
    Type: Application
    Filed: March 31, 2005
    Publication date: December 1, 2005
    Applicant: OI Corporation
    Inventors: Eustathios Vassiliou, Gottfried Kibelka
  • Publication number: 20050217082
    Abstract: Fasteners characterized by structures which are suitable to be engaged reversibly in a slot of a rigid part, such as a metal sheet or the frame of a car for example. The structure is critical in a manner to provide easy insertion but difficult extraction of the fastener from the slot, without producing squeaking noises during end-use. Easy manufacturing and high dimensional accuracy are also great assets of the fasteners. The invention also pertains to an assembly of said rigid part and the fastener, an assembly connecting parts with the fastener of this invention, as well as vehicles comprising such assemblies.
    Type: Application
    Filed: May 26, 2005
    Publication date: October 6, 2005
    Inventor: Eustathios Vassiliou
  • Patent number: 6921237
    Abstract: This invention relates to a fastener, which expands by the insertion of an expanding member, preferably a screw. The fastener comprises a substantially flat head and two expandable legs. The head has an upper side and a lower side, preferably separated by a gap. The head has also a hole on the upper side in which the screw engages. Further, the screw engages in other locations of a critical portion of the rest of the body of the fastener, thereby increasing considerably the prevailing torque required to render the screw loose, the pulling force required to break the fastener or otherwise pull the screw out of the engageable hole of the upper side of the head, as well as the stripping torque.
    Type: Grant
    Filed: December 13, 2002
    Date of Patent: July 26, 2005
    Assignee: E. Vassiliou Revocable Trust
    Inventor: Eustathios Vassiliou
  • Patent number: 6908274
    Abstract: This invention pertains fasteners which are characterized by easy insertion and extraordinarily difficult separation of items that they attach together. This is achieved by a combination of snapping segments with multi-engagement configurations of engageable holes. The snapping segments may comprise anti-opening and/or anti-sliding portions, which immensely increase the strength with which the fasteners hold the objects together. Provision of an elastic body in the vicinity of the bottom section of the fasteners provides water and gas proof properties, and further eliminates squeaking noises. Vehicles comprising objects connected together by the fastening devices described and claimed herein are part of the instant invention.
    Type: Grant
    Filed: June 27, 2003
    Date of Patent: June 21, 2005
    Assignee: Termax Corporation
    Inventor: Eustathios Vassiliou
  • Publication number: 20050117993
    Abstract: This invention pertains fasteners which are characterized by easy insertion and extraordinarily difficult separation of items that they attach together. This is achieved by a combination of snapping segments with multi-engagement configurations of engageable holes. The snapping segments may comprise anti-opening and/or anti-sliding portions, which immensely increase the strength with which the fasteners hold the objects together. Provision of an elastic body in the vicinity of the bottom section of the fasteners provides water and gas proof properties, and further eliminates squeaking noises. Vehicles comprising objects connected together by the fastening devices described and claimed herein are part of the instant invention.
    Type: Application
    Filed: June 27, 2003
    Publication date: June 2, 2005
    Inventor: Eustathios Vassiliou
  • Patent number: 6899499
    Abstract: This invention pertains fasteners which are characterized by easy insertion and extraordinarily difficult separation of items that they attach together. This is achieved by a combination of snapping segments with an elastic body disposed at least under the head of the fastener. The snapping segments may comprise anti-opening and/or anti-sliding portions, which immensely increase the strength with which the fasteners hold the objects together. The elastic body in the vicinity of the bottom section of the fasteners also provides water and gas proof properties, as well as elimination of squeaking noises. Vehicles comprising objects connected together by the fastening devices described and claimed herein are part of the instant invention.
    Type: Grant
    Filed: December 5, 2003
    Date of Patent: May 31, 2005
    Assignee: E. Vassiliou Revocable Trust
    Inventors: Daniel James Dickinson, Michael Walter Smith, Eustathios Vassiliou
  • Patent number: 6899498
    Abstract: A Spring fastener with critical configuration of the barbs, which allow the extraction of the fastener without destruction of the slot and/or the fastener. This critical configuration of the barbs allows spring fasteners to be used in slots of various widths and prevents rattling, which would take place in the case of spring fasteners of the present state of the art. The critical configuration is based on the special dimensions and special shape of the barbs with regard to the parts and the slots involved in assemblies of the spring fasteners and the parts. Assemblies of miscellaneous parts connected together by means of such spring fasteners, as well as vehicles comprising such assemblies may be made.
    Type: Grant
    Filed: December 5, 2003
    Date of Patent: May 31, 2005
    Assignee: E. Vassiliou Rev. Trust
    Inventors: Joseph William Lowry, Eustathios Vassiliou
  • Patent number: 6896464
    Abstract: This invention pertains fasteners which are characterized by easy insertion and extraordinarily difficult separation of items that they attach together. This is achieved by a combination of snapping segments with multi-engagement configurations of engageable holes. The snapping segments may comprise anti-opening and/or anti-sliding portions, which immensely increase the strength with which the fasteners hold the objects together. Provision of an elastic body in the vicinity of the bottom section of the fasteners provides water and gas proof properties, and further eliminates squeaking noises. Vehicles comprising objects connected together by the fastening devices described and claimed herein are part of the instant invention.
    Type: Grant
    Filed: June 27, 2003
    Date of Patent: May 24, 2005
    Assignee: Termax Corporation
    Inventor: Eustathios Vassiliou
  • Patent number: 6868588
    Abstract: Assemblies comprising a fastener, which has engagement springs in opposite sides of the fastener. Each engagement spring has an engagement region comprising a hindrance portion, which increases considerably the removal to insertion force ratio as compared to such ratio in the absence of the hindrance portion, thus permitting very easy insertion with considerably more difficult removal of the fastener from the slot of a panel, which provides an efficient ergonomically balanced removal to insertion force ratio. The hindrance portion comprises ripples or other hindrance elements of unexpectedly minute dimensions for providing this efficient ergonomic force balance.
    Type: Grant
    Filed: November 7, 2003
    Date of Patent: March 22, 2005
    Assignee: Termax Corporation
    Inventors: Daniel James Dickinson, Michael Walter Smith, Lawrence John Conway, Edward Sacha, Paul Lester Clemens, Mark Fleydervish, Richard H. Ducato, Eustathios Vassiliou
  • Publication number: 20050028328
    Abstract: The present invention pertains fasteners with critical configuration of the barbs, which allows the fasteners to be used in slots of various widths and panels of various thicknesses, and prevents rattling, which would take place in the case of fasteners of the present state of the art. The critical configuration is based on the special dimensions and special shape of the barbs with regard to the parts and the slots involved in assemblies of the fasteners and the parts. The present invention also pertains assemblies of miscellaneous parts connected together by means of the fasteners, as well as vehicles comprising such assemblies. In addition, the present invention comprises fasteners providing a combination of low barbs and high bent barbs, which combination prevents rattling of the fastener and allows secure attachment on a part, such as a sheet metal, for example.
    Type: Application
    Filed: September 3, 2004
    Publication date: February 10, 2005
    Inventors: Joseph Lowry, Eustathios Vassiliou
  • Patent number: 6848874
    Abstract: A fastener with critical configuration of the barbs, which allow the extraction of the fastener without destruction of the slot and/or the fastener. This critical configuration of the barbs allows fasteners to be used in slots of various widths and prevents rattling, which would take place in the case of fasteners of the present state of the art. The critical configuration is based on the special dimensions and special shape of the barbs with regard to the parts and the slots involved in assemblies of the fasteners and the parts. Assemblies of miscellaneous parts connected together by means of such fasteners, as well as vehicles comprising such assemblies may be made. In addition, fasteners with a combination of low and high barbs, which combination prevents rattling of the fastener and allows secure attachment on a part, such as a sheet metal, for example, are included.
    Type: Grant
    Filed: August 1, 2002
    Date of Patent: February 1, 2005
    Inventors: Joseph William Lowry, Eustathios Vassiliou
  • Publication number: 20050017166
    Abstract: A mass spectrometer suitable to measure both positive and negative particles, such as ions for example in a vacuum chamber. This spectrometer is provided with a turnable permanent magnet segment, which provides the gap of a yoke with adequate magnetic flux having the appropriate direction to separate the positive or the negative particles. Changing the polarity adjusts the flight path of the ions. Thus, negatively charged ions and positively charged ions will follow similar flight paths under opposite polarities, permitting the use of a single array of detectors. One or more coils may be used in place of or in addition to the turnable permanent magnet segment in order to provide the appropriate magnetic flux to the gap, and/or facilitate the turning process of the turnable magnet segment. The turnable magnet and/or the coils may be inside or outside the vacuum chamber.
    Type: Application
    Filed: June 3, 2004
    Publication date: January 27, 2005
    Inventors: Adi Scheidemann, Mark Dassel, Mark Wadsworth, Eustathios Vassiliou
  • Publication number: 20050013890
    Abstract: A solid imaging apparatus and method produces an integral three-dimensional object from a multiplicity of cross sectional portions of the object by selectively exposing successive layers of a liquid photoformable composition to actinic radiation. The apparatus includes a vessel for containing the composition so as to present a free surface, and a movable platform disposed within the vessel below the free surface. Part of the composition is transferred above the free surface by lowering and raising a dispenser at predetermined positions located away from the platform. A doctor blade contacts the composition transferred above the free surface, and then moves over the platform to form a substantially uniform layer of the composition.
    Type: Application
    Filed: January 16, 2004
    Publication date: January 20, 2005
    Inventors: Brian Chapman, Christian Clausen, Daniel Mickish, Eustathios Vassiliou
  • Patent number: 6840727
    Abstract: This invention pertains fasteners which are characterized by easy insertion and extraordinarily difficult separation of items that they attach together. This is achieved by a combination of snapping segments with multi-engagement configurations of engageable holes. The snapping segments may comprise anti-opening and/or anti-sliding portions, which immensely increase the strength with which the fasteners hold the objects together. Provision of an elastic body in the vicinity of the bottom section of the fasteners provides water and gas proof properties, and further eliminates squeaking noises. Vehicles comprising objects connected together by the fastening devices described and claimed herein are part of the instant invention.
    Type: Grant
    Filed: June 27, 2003
    Date of Patent: January 11, 2005
    Assignee: Termax Corporation
    Inventor: Eustathios Vassiliou
  • Patent number: 6835037
    Abstract: A Spring fastener with critical configuration of the barbs, which allow the extraction of the fastener without destruction of the slot and/or the fastener. This critical configuration of the barbs allows spring fasteners to be used in slots of various widths and prevents rattling, which would take place in the case of spring fasteners of the present state of the art. The critical configuration is based on the special dimensions and special shape of the barbs with regard to the parts and the slots involved in assemblies of the spring fasteners and the parts. Assemblies of miscellaneous parts connected together by means of such spring fasteners, as well as vehicles comprising such assemblies may be made.
    Type: Grant
    Filed: December 5, 2003
    Date of Patent: December 28, 2004
    Assignee: E. Vasiliou Revocable Trust
    Inventors: Joseph William Lowry, Eustathios Vassiliou