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公开(公告)号：US11459707B2
公开(公告)日：2022-10-04
申请号：US16413139
申请日：2019-05-15
发明人： Michael A. Rau
IPC分类号： E01B27/04
摘要： A dual ballast cribber for on-rail operation for preventing and removing cemented ballast with minimal site preparation can include a central frame, a plurality of wheels, a first pivot arm, a second pivot arm, a first cribber bucket, a second cribber bucket, a first clamp, a second clamp, and a hydraulic system. The dual ballast cribber may perform a digging cycle in 2 minutes or less. Preferably the digging cycle is performed in 45 seconds or less.
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公开(公告)号：US20220268651A1
公开(公告)日：2022-08-25
申请号：US17182126
申请日：2021-02-22
发明人： Michael A. Rau , Zach McVey , Jeff T. Bartek
摘要： A dynamometer can be used with rail equipment having two pairs of drive wheels. The dynamometer can comprise first and second wheel engagement assemblies, each comprising a frame, a first pair of dynamometer wheels that are spaced relative to a first horizontal dimension, and a second pair of dynamometer wheels that are spaced relative to the first horizontal dimension. The first and second pairs of dynamometer wheels can be spaced relative to a second horizontal dimension. The first pair of dynamometer wheels and second pair of dynamometer wheels can cooperate to define opposing wheel engagement receptacles. A hydraulic motor can couple to the first plurality of support wheels and can be configured to receive a power and an associated torque from a respective pair of the drive wheels of the rail equipment. The first and second wheel engagement assemblies can be movable relative to each other along the second dimension.
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公开(公告)号：US10684000B2
公开(公告)日：2020-06-16
申请号：US15893124
申请日：2018-02-09
发明人： Michael A. Rau
IPC分类号： F21V21/26 , B66F3/38 , B66F3/24 , F21W131/10
摘要： An inline mast adapter configured for attaching a light fixture, where a light fixture is aligned (within 15.24 cm, as measured horizontally, from the center of the light fixture) with an extendable tower mast, when the extendable tower mast is in a vertical position. The inline mast adapter includes a pivot arm, such that a light fixture may be attached from ground level. The inline mast adapter further includes a first gas spring and a second gas spring configured for rotational movement for rotationally moving the pivot arm to a vertical position. Further, the inline mast adapter may be an after-market add on to the extendable tower mast, such that the inline mast adapter is a kit.
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公开(公告)号：US20180231223A1
公开(公告)日：2018-08-16
申请号：US15893124
申请日：2018-02-09
发明人： Michael A. Rau
CPC分类号： F21V21/26 , B66F3/247 , B66F3/38 , F21W2131/1005
摘要： An inline mast adapter configured for attaching a light fixture, where a light fixture is aligned (within 15.24 cm, as measured horizontally, from the center of the light fixture) with an extendable tower mast, when the extendable tower mast is in a vertical position. The inline mast adapter includes a pivot arm, such that a light fixture may be attached from ground level. The inline mast adapter further includes a first gas spring and a second gas spring configured for rotational movement for rotationally moving the pivot arm to a vertical position. Further, the inline mast adapter may be an after-market add on to the extendable tower mast, such that the inline mast adapter is a kit.
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