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公开(公告)号：US20180112821A1
公开(公告)日：2018-04-26
申请号：US15568324
申请日：2016-04-22
申请人： Graco Minnesota Inc
摘要： An autofill shutoff valve includes a valve body mounted to a lubricant reservoir and secured to a fill tube extending into the reservoir. The autofill shutoff valve has a valve stem extending through the valve body and into the lubricant reservoir. The valve stem is actuated by a plate disposed within the reservoir from a first position, wherein lubricant flows from a lubricant inlet to a lubricant outlet through the valve body, to a second position, wherein the valve stem blocks the flow of lubricant through the valve body. The autofill shutoff valve provides lubricant directly to the reservoir, thereby eliminating external plumbing and the autofill shutoff valve also prevents overfill of the reservoir by cutting off the flow when the reservoir is full.
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公开(公告)号：US10731791B2
公开(公告)日：2020-08-04
申请号：US15568320
申请日：2016-04-22
申请人： Graco Minnesota Inc.
IPC分类号： F16N13/22 , F16N11/08 , F16N39/00 , F16K31/18 , F04B53/12 , F16N7/38 , F16N19/00 , F04B49/04 , F04B53/06 , F04B53/16 , F04B23/02 , F16N13/02 , F16N37/00 , F16N21/00 , F16K31/24 , F16K21/18 , F16K31/22 , F16K37/00 , F16N13/00 , F16N29/00
摘要： A centerfill assembly for a lubricant reservoir includes a hollow tube for receiving lubricant from the top of the reservoir and loading the lubricant into the reservoir near the bottom of the reservoir. Loading the lubricant near the bottom of the reservoir introduces lubricant near where the stirring paddles mix the lubricant and near where the lubricant is loaded to the lubricant pump. Adding the lubricant near where the pumps load and near the stirring paddles helps to eliminate air pockets in the lubricant. In addition, having the centerfill rod minimizes exterior plumbing and allows for the mounting of valves on the fill line.
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公开(公告)号：US10527228B2
公开(公告)日：2020-01-07
申请号：US15568301
申请日：2016-04-22
申请人： Graco Minnesota Inc.
IPC分类号： F16N11/08 , F16K21/18 , F16N19/00 , F16N13/22 , F16N13/02 , F16N37/00 , F16K31/22 , F16K37/00 , F16N21/00 , F16N13/00 , F16N29/00 , F16N7/38
摘要： A protection mechanism for a lubricant reservoir is mounted within a valve protection chamber disposed on an actuator. The protection mechanism includes a valve actuating plate and an elastic member biasing the valve actuating plate upwards. The actuator is pushed upwards by a rising level of lubricant as the lubricant reservoir is filled. When the reservoir is full, the actuator causes the valve actuating plate to contact a valve stem. The valve actuating plate pushes the valve stem up to shut off a flow of lubricant to the reservoir through the shut off valve. During an overfill event the actuator shifts upward due to the rising level of the lubricant in the reservoir. As the actuator shifts upward, the elastic member compresses such that valve actuating plate remains static relative to the lubricant reservoir as actuator rises.
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公开(公告)号：US10781971B2
公开(公告)日：2020-09-22
申请号：US15568324
申请日：2016-04-22
申请人： Graco Minnesota Inc
IPC分类号： F16N13/22 , F16N11/08 , F16N7/38 , F04B49/04 , F04B23/02 , F16N13/02 , F16N39/00 , F16K31/18 , F04B53/12 , F16N19/00 , F04B53/06 , F04B53/16 , F16K31/24 , F16K21/18 , F16N37/00 , F16K31/22 , F16K37/00 , F16N21/00 , F16N13/00 , F16N29/00
摘要： An autofill shutoff valve includes a valve body mounted to a lubricant reservoir and secured to a fill tube extending into the reservoir. The autofill shutoff valve has a valve stem extending through the valve body and into the lubricant reservoir. The valve stem is actuated by a plate disposed within the reservoir from a first position, wherein lubricant flows from a lubricant inlet to a lubricant outlet through the valve body, to a second position, wherein the valve stem blocks the flow of lubricant through the valve body. The autofill shutoff valve provides lubricant directly to the reservoir, thereby eliminating external plumbing and the autofill shutoff valve also prevents overfill of the reservoir by cutting off the flow when the reservoir is full.
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