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公开(公告)号：DE19882223T1
公开(公告)日：2000-03-30
申请号：DE19882223
申请日：1998-03-24
Applicant: ROSEMOUNT INC
Inventor： SUNDET PAUL C , KRUEGER WILLIAM B
IPC: G01L19/00
Abstract: A process instrument mount includes an outer wall and an inner wall. The outer wall is separated from the inner wall by a space. The mount has a first end and a second end, and a hole extends from the first end to the second end. The inner wall surrounds the hole, and has a threaded region to receive a process instrument from the first end. The inner wall also has a flange proximate the second end to sealingly mate with the process instrument. In one embodiment the inner and outer walls are portions of a unitary metal block, and the space separating them comprises a groove formed in the metal. In another embodiment the inner and outer walls are separate parts joined together at the second end and spaced apart between the first and second ends.
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公开(公告)号：HUT70345A
公开(公告)日：1995-09-28
申请号：HU9500617
申请日：1993-08-30
Applicant: ROSEMOUNT INC
Inventor： LUTZ MARK A , KRUEGER WILLIAM B
Abstract: A low range pressure sensor includes a base plate of brittle material, and a diaphragm plate mounted on the base plate and sealed around a periphery to the base plate. Pressures are introduced to cause the diaphragm to deflect toward the base plate, and the deflection of the diaphragm is sensed through strain gauges to provide an indication of the pressure. The diaphragm is provided with a plurality of individual support posts on a side facing the base plate, so that when the diaphragm is deflected toward the base plate under high overpressures the support posts will support the diaphragm against movement to avoid failure or breakage of the diaphragm. The number of support posts can be varied as desired. In a preferred form of the invention, the base plate is provided with a very thin layer of silicon dioxide, which is a good electrical insulator and which also serves to help accommodate slight movement of the support posts as they touch the surface of the base plate to reduce stress buildup in the diaphragm as the overpressure increases.
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公开(公告)号：HU9500617D0
公开(公告)日：1995-04-28
申请号：HU9500617
申请日：1993-08-30
Applicant: ROSEMOUNT INC
Inventor： LUTZ MARK A , KRUEGER WILLIAM B
Abstract: A low range pressure sensor includes a base plate of brittle material, and a diaphragm plate mounted on the base plate and sealed around a periphery to the base plate. Pressures are introduced to cause the diaphragm to deflect toward the base plate, and the deflection of the diaphragm is sensed through strain gauges to provide an indication of the pressure. The diaphragm is provided with a plurality of individual support posts on a side facing the base plate, so that when the diaphragm is deflected toward the base plate under high overpressures the support posts will support the diaphragm against movement to avoid failure or breakage of the diaphragm. The number of support posts can be varied as desired. In a preferred form of the invention, the base plate is provided with a very thin layer of silicon dioxide, which is a good electrical insulator and which also serves to help accommodate slight movement of the support posts as they touch the surface of the base plate to reduce stress buildup in the diaphragm as the overpressure increases.
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公开(公告)号：MX9305342A
公开(公告)日：1994-06-30
申请号：MX9305342
申请日：1993-09-01
Applicant: ROSEMOUNT INC
Inventor： LUTZ MARK A , KRUEGER WILLIAM B
Abstract: A low range pressure sensor includes a base plate of brittle material, and a diaphragm plate mounted on the base plate and sealed around a periphery to the base plate. Pressures are introduced to cause the diaphragm to deflect toward the base plate, and the deflection of the diaphragm is sensed through strain gauges to provide an indication of the pressure. The diaphragm is provided with a plurality of individual support posts on a side facing the base plate, so that when the diaphragm is deflected toward the base plate under high overpressures the support posts will support the diaphragm against movement to avoid failure or breakage of the diaphragm. The number of support posts can be varied as desired. In a preferred form of the invention, the base plate is provided with a very thin layer of silicon dioxide, which is a good electrical insulator and which also serves to help accommodate slight movement of the support posts as they touch the surface of the base plate to reduce stress buildup in the diaphragm as the overpressure increases.
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公开(公告)号：AT548639T
公开(公告)日：2012-03-15
申请号：AT08862655
申请日：2008-12-05
Applicant: ROSEMOUNT INC
Inventor： BEHM STEVEN M , KRUEGER WILLIAM B , SMITH JAY W , REDDICK JEFFREY P , GRAUPMANN JEFFREY , SEELIG AARON
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Patent Agency Ranking
公开(公告)号：BR9306946A
公开(公告)日：1999-01-12
申请号：BR9306946
申请日：1993-08-30
Applicant: ROSEMOUNT INC
Inventor： LUTZ MARK A , KRUEGER WILLIAM B
Abstract: A low range pressure sensor includes a base plate of brittle material, and a diaphragm plate mounted on the base plate and sealed around a periphery to the base plate. Pressures are introduced to cause the diaphragm to deflect toward the base plate, and the deflection of the diaphragm is sensed through strain gauges to provide an indication of the pressure. The diaphragm is provided with a plurality of individual support posts on a side facing the base plate, so that when the diaphragm is deflected toward the base plate under high overpressures the support posts will support the diaphragm against movement to avoid failure or breakage of the diaphragm. The number of support posts can be varied as desired. In a preferred form of the invention, the base plate is provided with a very thin layer of silicon dioxide, which is a good electrical insulator and which also serves to help accommodate slight movement of the support posts as they touch the surface of the base plate to reduce stress buildup in the diaphragm as the overpressure increases.
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公开(公告)号：PL173699B1
公开(公告)日：1998-04-30
申请号：PL30759193
申请日：1993-08-30
Applicant: ROSEMOUNT INC
Inventor： LUTZ MARK A , KRUEGER WILLIAM B
Abstract: A low range pressure sensor includes a base plate of brittle material, and a diaphragm plate mounted on the base plate and sealed around a periphery to the base plate. Pressures are introduced to cause the diaphragm to deflect toward the base plate, and the deflection of the diaphragm is sensed through strain gauges to provide an indication of the pressure. The diaphragm is provided with a plurality of individual support posts on a side facing the base plate, so that when the diaphragm is deflected toward the base plate under high overpressures the support posts will support the diaphragm against movement to avoid failure or breakage of the diaphragm. The number of support posts can be varied as desired. In a preferred form of the invention, the base plate is provided with a very thin layer of silicon dioxide, which is a good electrical insulator and which also serves to help accommodate slight movement of the support posts as they touch the surface of the base plate to reduce stress buildup in the diaphragm as the overpressure increases.
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公开(公告)号：PL307591A1
公开(公告)日：1995-05-29
申请号：PL30759193
申请日：1993-08-30
Applicant: ROSEMOUNT INC
Inventor： LUTZ MARK A , KRUEGER WILLIAM B
Abstract: A low range pressure sensor includes a base plate of brittle material, and a diaphragm plate mounted on the base plate and sealed around a periphery to the base plate. Pressures are introduced to cause the diaphragm to deflect toward the base plate, and the deflection of the diaphragm is sensed through strain gauges to provide an indication of the pressure. The diaphragm is provided with a plurality of individual support posts on a side facing the base plate, so that when the diaphragm is deflected toward the base plate under high overpressures the support posts will support the diaphragm against movement to avoid failure or breakage of the diaphragm. The number of support posts can be varied as desired. In a preferred form of the invention, the base plate is provided with a very thin layer of silicon dioxide, which is a good electrical insulator and which also serves to help accommodate slight movement of the support posts as they touch the surface of the base plate to reduce stress buildup in the diaphragm as the overpressure increases.
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公开(公告)号：NO950777L
公开(公告)日：1995-02-28
申请号：NO950777
申请日：1995-02-28
Applicant: ROSEMOUNT INC
Inventor： LUTZ MARK A , KRUEGER WILLIAM B
Abstract: A low range pressure sensor includes a base plate of brittle material, and a diaphragm plate mounted on the base plate and sealed around a periphery to the base plate. Pressures are introduced to cause the diaphragm to deflect toward the base plate, and the deflection of the diaphragm is sensed through strain gauges to provide an indication of the pressure. The diaphragm is provided with a plurality of individual support posts on a side facing the base plate, so that when the diaphragm is deflected toward the base plate under high overpressures the support posts will support the diaphragm against movement to avoid failure or breakage of the diaphragm. The number of support posts can be varied as desired. In a preferred form of the invention, the base plate is provided with a very thin layer of silicon dioxide, which is a good electrical insulator and which also serves to help accommodate slight movement of the support posts as they touch the surface of the base plate to reduce stress buildup in the diaphragm as the overpressure increases.
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公开(公告)号：NO950777A
公开(公告)日：1995-02-28
申请号：NO950777
申请日：1995-02-28
Applicant: ROSEMOUNT INC
Inventor： LUTZ MARK A , KRUEGER WILLIAM B
CPC classification number: G01L19/0618 , G01L9/0042
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