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公开(公告)号：US20220074545A1
公开(公告)日：2022-03-10
申请号：US17013714
申请日：2020-09-07
发明人： Tadd McBride , Chris Holland , Brandon Green
摘要： A piston assembly is for a fluid delivery device, preferably a lubricant injector, the injector having a measuring chamber defined by an inner cylindrical surface and an axial end face, a flow port through the end face, and a central axis extending through the chamber. The piston assembly includes a piston body disposeable within the chamber so as to be linearly displaceable along the central axis. The piston body includes a cylindrical head, the head having first and second axial ends and an outer circumferential surface, and a rod extending axially from the second axial end of the piston head. A seal is coupled with the first axial end of the piston head and has an annular lip sealingly engageable with the chamber inner cylindrical surface and an axial end engageable with the chamber end face.
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公开(公告)号：US11774040B2
公开(公告)日：2023-10-03
申请号：US17013714
申请日：2020-09-07
发明人： Tadd McBride , Chris Holland , Brandon Green
摘要： A piston assembly is for a fluid delivery device, preferably a lubricant injector, the injector having a measuring chamber defined by an inner cylindrical surface and an axial end face, a flow port through the end face, and a central axis extending through the chamber. The piston assembly includes a piston body disposeable within the chamber so as to be linearly displaceable along the central axis. The piston body includes a cylindrical head, the head having first and second axial ends and an outer circumferential surface, and a rod extending axially from the second axial end of the piston head. A seal is coupled with the first axial end of the piston head and has an annular lip sealingly engageable with the chamber inner cylindrical surface and an axial end engageable with the chamber end face.
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公开(公告)号：US10774989B2
公开(公告)日：2020-09-15
申请号：US15850348
申请日：2017-12-21
发明人： Brad Edler , Chris Holland , Paul Conley
IPC分类号： F16N25/02 , F16K11/044 , F16N27/00 , F16N7/38
摘要： A lubricant injector includes a body having an inlet at a first end fluidly coupleable to a lubricant source, an outlet, a delivery chamber coupled with the outlet and a bore defined by a substantially circular inner surface with a constant inner diameter and spaced axially from the body inlet, the bore having a first port fluidly connected with the body inlet and a second port disposed between the body inlet and the first port and fluidly connected with the delivery chamber. A generally circular cylindrical piston is disposed within the bore so as to divide the bore into an operating chamber fluidly coupled with the first port and a measuring chamber fluidly coupled with the second port and located axially between the operating chamber and the body first end. The piston has an outer circumferential slidably disposed against the bore inner surface and having a generally constant outside diameter.
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公开(公告)号：US20190195424A1
公开(公告)日：2019-06-27
申请号：US15850348
申请日：2017-12-21
发明人： Brad Edler , Chris Holland , Paul Conley
IPC分类号： F16N25/02 , F16N27/00 , F16K11/044
摘要： A lubricant injector includes a body having an inlet at a first end fluidly coupleable to a lubricant source, an outlet, a delivery chamber coupled with the outlet and a bore defined by a substantially circular inner surface with a constant inner diameter and spaced axially from the body inlet, the bore having a first port fluidly connected with the body inlet and a second port disposed between the body inlet and the first port and fluidly connected with the delivery chamber. A generally circular cylindrical piston is disposed within the bore so as to divide the bore into an operating chamber fluidly coupled with the first port and a measuring chamber fluidly coupled with the second port and located axially between the operating chamber and the body first end. The piston has an outer circumferential slidably disposed against the bore inner surface and having a generally constant outside diameter.
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公开(公告)号：US10767813B2
公开(公告)日：2020-09-08
申请号：US15850306
申请日：2017-12-21
发明人： Brad Edler , Chris Holland , Paul Conley
摘要： A lubricant injector includes a body having an inlet fluidly coupleable to a lubricant source, an outlet, and an elongated bore extending along an axis and having an outer end proximal to the body second end, a closed inner end spaced axially from the body first end, a first port, and a second port disposed generally between the bore closed end and the first port. A delivery chamber separate from the bore has an inlet port and an outlet port fluidly coupled with the body outlet. A piston disposed within the bore divides the bore into an operating chamber coupled with the first port and a measuring chamber coupled with the second port. The operating chamber is fluidly coupled with the inlet and the measuring chamber is located between the bore closed end and the operating chamber and is fluidly coupleable with the inlet and alternatively with the delivery chamber.
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公开(公告)号：US20190195423A1
公开(公告)日：2019-06-27
申请号：US15850306
申请日：2017-12-21
发明人： Brad Edler , Chris Holland , Paul Conley
摘要： A lubricant injector includes a body having an inlet fluidly coupleable to a lubricant source, an outlet, and an elongated bore extending along an axis and having an outer end proximal to the body second end, a closed inner end spaced axially from the body first end, a first port, and a second port disposed generally between the bore closed end and the first port. A delivery chamber separate from the bore has an inlet port and an outlet port fluidly coupled with the body outlet. A piston disposed within the bore divides the bore into an operating chamber coupled with the first port and a measuring chamber coupled with the second port. The operating chamber is fluidly coupled with the inlet and the measuring chamber is located between the bore closed end and the operating chamber and is fluidly coupleable with the inlet and alternatively with the delivery chamber.
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