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公开(公告)号：US20240361268A1
公开(公告)日：2024-10-31
申请号：US18635250
申请日：2024-04-15
CPC分类号： G01N27/06 , G01N27/046 , G01N33/2888
摘要： Provided are an oil condition determination system and an oil condition determination method that are capable of continuously determining the oil condition when oil is partially replaced or oil is added. An oil condition determination system includes a measurement unit and a determination unit. The measurement unit periodically measures a resistance value of oil. The determination unit periodically determines a condition of the oil based on the resistance value, stores a local maximum value of the resistance value, determines that the condition of the oil has changed when a difference between the local maximum value and the resistance value becomes greater than or equal to a first threshold value, and initializes the local maximum value and updates the first threshold value when the amount of change in the resistance value per unit time becomes greater than or equal to a second threshold value.
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公开(公告)号：US20240044325A1
公开(公告)日：2024-02-08
申请号：US18266922
申请日：2021-09-22
CPC分类号： F04B45/022 , F04B49/08 , F04B53/1095 , F04B53/1032
摘要： A control unit 6 of a bellows pump device 1 determines whether or not a second bellows 14 (first bellows 13) is in a predetermined expanded state when the first bellows 13 (second bellows 14) contracts to a mid-contraction state, on the basis of respective detection signals of a first detection unit 29 and a second detection unit 31, and when a determination result of the determination is negative, the control unit 6 performs next pressure increase control of controlling a second electropneumatic regulator 52 (first electropneumatic regulator 51) such that an air pressure of a pressurized air to be supplied to a second suction-side air chamber 26B (first suction-side air chamber 26A) of a second driving unit 28 (first driving unit 27) at next expansion of the second bellows 14 (first bellows 13) is increased.
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公开(公告)号：US11879549B2
公开(公告)日：2024-01-23
申请号：US17611294
申请日：2020-04-17
IPC分类号： F16J15/34 , F16L27/087
CPC分类号： F16J15/3404 , F16L27/087
摘要： Each of mechanical seal devices 7 of a rotary joint 1 includes a first shaft side seal ring 71 and a second shaft side seal ring 72 attached to a shaft body 5, and a first case side seal ring 73 and a second case side seal ring 74 attached to a case body 2. The first shaft side seal ring 71 and the second shaft side seal ring 72 have contact surfaces 71b and 72b axially facing each other and coming into contact with each other, and grooves 421c and 421d for forming a second communication flow passage 42 connecting a second outer flow passage 32 and a second inner flow passage 62 are formed in both the contact surfaces 71b and 72b.
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公开(公告)号：USD1002797S1
公开(公告)日：2023-10-24
申请号：US29796300
申请日：2021-06-23
摘要： FIG. 1 is a front view of a fluid block showing our new design;
FIG. 2 is a rear view thereof;
FIG. 3 is a left side view thereof;
FIG. 4 is a right side view thereof;
FIG. 5 is a top plan view thereof;
FIG. 6 is a bottom plan view thereof;
FIG. 7 is a front, plane, perspective view from the right side thereof;
FIG. 8 is a front, plane, perspective view from the left side thereof;
FIG. 9 is a perspective view from the bottom, back, and right side thereof;
FIG. 10 is a perspective view from the bottom, back, left side thereof; and,
FIG. 11 is a reference diagram thereof.
The broken lines in the drawings depict portions of the fluid block that form no part of the claimed design. The dash-dot-dash lines in the drawings are the boundary lines to separate disclaimed areas on an embodiment from the claimed.-
公开(公告)号：USD1001971S1
公开(公告)日：2023-10-17
申请号：US29796284
申请日：2021-06-23
摘要： FIG. 1 is a front view of a fluid block showing our new design;
FIG. 2 is a rear view thereof;
FIG. 3 is a left side view thereof;
FIG. 4 is a right side view thereof;
FIG. 5 is a top plan view thereof;
FIG. 6 is a bottom plan view thereof;
FIG. 7 is a front, plane, perspective view from the right side thereof;
FIG. 8 is a front, plane, perspective view from the left side thereof;
FIG. 9 is a perspective view from the bottom, back, and right side thereof; and,
FIG. 10 is a perspective view from the bottom, back, left side thereof.
The broken lines in the drawings depict portions of the fluid block that form no part of the claimed design. The dash-dot-dash lines in the drawings are the boundary lines to separate disclaimed areas on an embodiment from the claimed.-
公开(公告)号：USD997310S1
公开(公告)日：2023-08-29
申请号：US29785604
申请日：2021-05-26
设计人： Atsushi Nakano , Kiyotaka Ohmae , Kazukiyo Teshima
摘要： FIG. 1 is a top perspective view of a gasket, according to the present design.
FIG. 2 is a front elevation view of the gasket of FIG. 1.
FIG. 3 is a rear elevation view of the gasket of FIG. 1, the rear elevation view being identical to the front elevation view of FIG. 2.
FIG. 4 is a left side elevation view of the gasket of FIG. 1.
FIG. 5 is a right side elevation view of the gasket of FIG. 1, the right side elevation view being identical to the left side elevation view of FIG. 4.
FIG. 6 is a top plan view of the gasket of FIG. 1.
FIG. 7 is a bottom plan view of the gasket of FIG. 1, the bottom plan view being identical to the top plan view of FIG. 6; and,
FIG. 8 is a cross-sectional view of the gasket of FIG. 1, along cut line 8-8 that is visible in FIG. 2.-
公开(公告)号：US11708928B2
公开(公告)日：2023-07-25
申请号：US17791499
申请日：2020-10-13
CPC分类号： F16L47/041 , F16L43/008
摘要： A resin joint includes a joint body having a flow path, sleeves, and union nuts that fix tubes to the joint body. The joint body has a body portion with a curved inner peripheral surface and a straight portion protruding from an end portion of the body portion. The straight portion has outer and inner cylindrical portions radially arranged inside the outer cylindrical portion. An end portion of the inner cylindrical portion is positioned closer to the body portion than is an end portion of the outer cylindrical portion. A groove portion extending parallel with the outer and inner cylindrical portions in an axial direction is formed between an inner peripheral surface of the outer cylindrical portion and an outer peripheral surface of the inner cylindrical portion. The tube is fixed to the joint body such that a press-fit portion of the sleeve is press-fitted in the groove portion.
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公开(公告)号：USD985740S1
公开(公告)日：2023-05-09
申请号：US29785588
申请日：2021-05-26
设计人： Atsushi Nakano , Kiyotaka Ohmae , Tomoyuki Koike
摘要： FIG. 1 is a top perspective view of a gasket, according to the present design.
FIG. 2 is a front elevation view of the gasket of FIG. 1.
FIG. 3 is a rear elevation view of the gasket of FIG. 1, the rear elevation view being identical to the front elevation view of FIG. 2.
FIG. 4 is a left side elevation view of the gasket of FIG. 1.
FIG. 5 is a right side elevation view of the gasket of FIG. 1, the right side elevation view being identical to the left side elevation view of FIG. 4.
FIG. 6 is a top plan view of the gasket of FIG. 1.
FIG. 7 is a bottom plan view of the gasket of FIG. 1, the bottom plan view being identical to the top plan view of FIG. 6; and,
FIG. 8 is a cross-sectional view of the gasket of FIG. 1, along cut line 8-8 that is visible in FIG. 2.-
公开(公告)号：US20220205541A1
公开(公告)日：2022-06-30
申请号：US17611294
申请日：2020-04-17
IPC分类号： F16J15/34 , F16L27/087
摘要： Each of mechanical seal devices 7 of a rotary joint 1 includes a first shaft side seal ring 71 and a second shaft side seal ring 72 attached to a shaft body 5, and a first case side seal ring 73 and a second case side seal ring 74 attached to a case body 2. The first shaft side seal ring 71 and the second shaft side seal ring 72 have contact surfaces 71b and 72b axially facing each other and coming into contact with each other, and grooves 421c and 421d for forming a second communication flow passage 42 connecting a second outer flow passage 32 and a second inner flow passage 62 are formed in both the contact surfaces 71b and 72b.
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公开(公告)号：US11371500B2
公开(公告)日：2022-06-28
申请号：US15527239
申请日：2016-02-19
发明人： Yuji Sato , Takashi Nishi
摘要： Provided is a floating ring type mechanical seal in which a floating ring is pinched and held between a rotary ring provided in a rotary shaft and a stationary ring provided in a seal casing to be movable in an axial direction while being urged toward the rotary ring so that a relative rotation of the floating ring with respect to the stationary ring is inhibited. The rotary ring is made of a sintered compact of SiC or cemented carbide. A diamond film is formed on a sealing surface sliding on the floating ring in the rotary ring. A diamond film continuous to the diamond film of the sealing surface is formed on an outer peripheral surface of the rotary ring and a rear surface, which is a surface opposite to the sealing surface, in the rotary ring.
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