Patents by Inventor Peter Meares
Peter Meares 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).
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Patent number: 11506212Abstract: The present invention provides bearing cage retainer for a rolling element rotor bearing in a vacuum pump. The bearing cage retainer being configured to have an operational arrangement in which, at the maximum longitudinal axial displacement limit of the outer race in the direction of the retainer, the bearing cage retainer is disengaged from the bearing cage, and a failure configuration characterised by the dislocation of the bearing cage by a longitudinal axial displacement of the bearing cage relative to the outer race in the direction of the retainer and in which the bearing cage retainer engages said bearing cage and the bearing cage maintains the separation of the rolling elements within the bearing.Type: GrantFiled: October 5, 2018Date of Patent: November 22, 2022Assignee: Edwards LimitedInventors: Peter Meares, Andrew William Snell, Richard Glyn Horler
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Publication number: 20200248701Abstract: The present invention provides bearing cage retainer for a rolling element rotor bearing in a vacuum pump. The bearing cage retainer being configured to have an operational arrangement in which, at the maximum longitudinal axial displacement limit of the outer race in the direction of the retainer, the bearing cage retainer is disengaged from the bearing cage, and a failure configuration characterised by the dislocation of the bearing cage by a longitudinal axial displacement of the bearing cage relative to the outer race in the direction of the retainer and in which the bearing cage retainer engages said bearing cage and the bearing cage maintains the separation of the rolling elements within the bearing.Type: ApplicationFiled: October 5, 2018Publication date: August 6, 2020Inventors: Peter Meares, Andrew William Snell, Richard Glyn Horler
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Patent number: 5886355Abstract: Ion implantation equipment is modified so as to provide filament reflectors to a filament inside of an arc chamber, and to remove the electrical insulators for the filament outside of the arc chamber and providing a means of shielding, thereby reducing the formation of a conductive layer on said insulators and greatly extending the lifetime and reducing downtime of the equipment. The efficiency of the equipment is further enhanced by means of an interchangeable liner for the arc chamber that increases the wall temperature of the arc chamber and thus the electron temperature. The use of tungsten parts inside the arc chamber, obtained either by making the arc chamber itself or portions thereof of tungsten, particularly the front plate having the exit aperture for the ion beam, or by inserting a removable tungsten liner therein, decreases contamination of the ion beam. Serviceability of the arc chamber is improved by means of a unitary clamp that separately grips both the filament and filament reflectors.Type: GrantFiled: August 20, 1996Date of Patent: March 23, 1999Assignee: Applied Materials, Inc.Inventors: Nicholas Bright, Paul Anthony Burfield, John Pontefract, Bernard Francis Harrison, Peter Meares, David R. Burgin, Andrew Stephen Devaney, Peter Torin Kindersley
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Patent number: 5554852Abstract: Ion implantation equipment is modified so as to provide filament reflectors to a filament inside of an arc chamber, and to remove the electrical insulators for the filament outside of the arc chamber and providing a shield, thereby reducing the formation of a conductive layer on said insulators and greatly extending the lifetime and reducing downtime of the equipment. The efficiency of the equipment is further enhanced by an interchangeable liner for the arc chamber that increases the wall temperature of the arc chamber and thus the electron temperature. The use of tungsten parts inside the arc chamber, obtained either by making the arc chamber itself or portions thereof of tungsten, particularly the front plate having the exit aperture for the ion beam, or by inserting a removable tungsten liner therein, decreases contamination of the ion beam. Serviceability of the arc chamber is improved by using a unitary clamp that separately grips both the filament and filament reflectors.Type: GrantFiled: April 3, 1995Date of Patent: September 10, 1996Assignee: Applied Materials, Inc.Inventors: Nicholas Bright, Paul A. Burfield, John Pontefract, Bernard F. Harrison, Peter Meares, David R. Burgin, Andrew S. Devaney, Peter T. Kindersley
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Patent number: 5517077Abstract: Ion implantation equipment is modified so as to provide filament reflectors to a filament inside of an arc chamber, and to remove the electrical insulators for the filament outside of the arc chamber and providing a means of shielding, thereby reducing the formation of a conductive layer on said insulators and greatly extending the lifetime and reducing downtime of the equipment. The efficiency of the equipment is further enhanced by means of an interchangeable liner for the arc chamber that increases the wall temperature of the arc chamber and thus the electron temperature. The use of tungsten parts inside the arc chamber, obtained either by making the arc chamber itself or portions thereof of tungsten, particularly the front plate having the exit aperture for the ion beam, or by inserting a removable tungsten liner therein, decreases contamination of the ion beam. Serviceability of the arc chamber is improved by means of a unitary clamp that separately grips both the filament and filament reflectors.Type: GrantFiled: August 11, 1993Date of Patent: May 14, 1996Assignee: Applied Materials, Inc.Inventors: Nicholas Bright, Paul A. Burfield, John Pontefract, Bernard F. Harrison, Peter Meares, David R. Burgin, Andrew S. Devaney, Peter T. Kindersley
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Patent number: 5262652Abstract: Ion implantation equipment is modified so as to provide filament reflectors to a filament inside of an arc chamber, and to remove the electrical insulators for the filament outside of the arc chamber and providing a means of shielding, thereby reducing the formation of a conductive layer on said insulators and greatly extending the lifetime and reducing downtime of the equipment. The efficiency of the equipment is further enhanced by means of an interchangeable liner for the arc chamber that increases the wall temperature of the arc chamber and thus the electron temperature. The use of tungsten parts inside the arc chamber, obtained either by making the arc chamber itself or portions thereof of tungsten, particularly the front plate having the exit aperture for the ion beam, or by inserting a removable tungsten liner therein, decreases contamination of the ion beam. Serviceability of the arc chamber is improved by means of a unitary clamp that separately grips both the filament and filament reflectors.Type: GrantFiled: June 15, 1992Date of Patent: November 16, 1993Assignee: Applied Materials, Inc.Inventors: Nicholas Bright, Paul A. Burfield, John Pontefract, Bernard F. Harrison, Peter Meares, David R. Burgin, Andrew S. Devaney, Peter T. Kindersley