公开(公告)号：US6065947A

公开(公告)日：2000-05-23

申请号：US211120

申请日：1998-12-14

Applicant: Scott Wu

Inventor： Scott Wu

IPC: F04B25/02 ,  F04B33/00 ,  F04B39/00 ,  F04B5/02 ,  F04B53/12

CPC classification number: F04B39/0016 ,  F04B25/02 ,  F04B33/005

Abstract: A pump includes a main body, a piston slidably received in the main body, and a hose having a first end attached to an end of the main body and a second end attached to the piston. A handle is attached to a piston rod, which, in turn, is attached to the piston. Air is outputted to a main passage via the hose during an outward stroke. Air is outputted to the main passage via a hole defined in the end of the main body during an inward stroke.

Abstract translation: 泵包括主体，可滑动地容纳在主体中的活塞和软管，其具有附接到主体的端部的第一端和附接到活塞的第二端。 手柄连接到活塞杆，活塞杆又连接到活塞上。 在向外冲程期间，空气经由软管输出到主通道。 在向内冲程期间，空气经由限定在主体的端部的孔输出到主通道。

公开(公告)号：US5975109A

公开(公告)日：1999-11-02

申请号：US232403

申请日：1999-01-15

Applicant: Scott Wu

Inventor： Scott Wu

IPC: B60S5/04 ,  F04B33/00 ,  F16K15/20 ,  F16K29/02

CPC classification number: F04B33/005 ,  B60S5/04 ,  Y10T137/3584 ,  Y10T137/3724

Abstract: A pumping device includes a main body having a passage defined therein through which air passes, a head connected to the main body, and a retainer slidably received in the head. The retainer includes a first compartment communicated with the passage. The second end of the retainer includes a conical recess defined therein, and a nozzle is slidably mounted in the second end of the retainer. A nozzle head is securely mounted in the second end of the head and includes a second compartment communicated with the first compartment via the nozzle. The nozzle head includes a hollow conical section for engaging with the conical recess of the retainer. A retaining pin is mounted in the first compartment and has a first end secured to the first end of the nozzle to slide therewith. A lever includes a first end pivotally connected to the first end of the head and a second operative end for switching the first end of the retaining pin and the retainer between a first operative position in which the first end of the lever bears against the first end of the retainer and the first end of the retaining pin and a second inoperative position in which the first end of the lever neither engages with the first end of the retainer nor engages with the first end of the retaining pin.

Abstract translation: 泵送装置包括主体，其具有限定在其中空气通过的通道，连接到主体的头部和可滑动地容纳在头部中的保持器。 保持器包括与通道连通的第一隔室。 保持器的第二端包括限定在其中的锥形凹部，并且喷嘴可滑动地安装在保持器的第二端中。 喷嘴头牢固地安装在头部的第二端，并且包括通过喷嘴与第一隔室连通的第二隔室。 喷嘴头包括用于与保持器的锥形凹部接合的中空锥形部分。 保持销安装在第一隔室中，并且具有固定到喷嘴的第一端的第一端以与其一起滑动。 杠杆包括枢转地连接到头部的第一端的第一端和用于将保持销和保持器的第一端在第一操作位置之间切换的第二端，在第一操作位置中，杆的第一端抵靠第一端 和第二不工作位置，其中杆的第一端既不与保持器的第一端接合，也不与保持销的第一端接合。

公开(公告)号：US20240384713A1

公开(公告)日：2024-11-21

申请号：US18318821

申请日：2023-05-17

Applicant: Scott Wu

Inventor： Scott Wu

IPC: F04B33/00

Abstract: A portable air pump includes an inflating mechanism, a joint seat disposed on a cylinder of the inflating mechanism, a support seat pivotally coupled to the joint seat, a positioning mechanism pivotally coupled to the support seat, and a footrest is coupled to the support seat. The joint seat has a joint end including a positioning portion and a groove. The support seat includes a connection pivotally received by the groove and has a receptacle. The positioning mechanism includes a positioning member pivotally engaged in the receptacle and a biasing member. The positioning member is biased by the biasing member and detachably engagable with the positioning portion. The footrest is folded out when the positioning member is engaged with the positioning portion and adapted to be folded toward the inflating mechanism when the positioning member is disengaged from the positioning portion.

公开(公告)号：US11959470B2

公开(公告)日：2024-04-16

申请号：US17246849

申请日：2021-05-03

Applicant: Scott Wu

Inventor： Scott Wu

IPC: F04B39/10 ,  F04B49/22 ,  F16K17/04

CPC classification number: F04B39/1033 ,  F04B49/22 ,  F16K17/0486

Abstract: A relief device in air pump includes a main body defining an interior space and a discharge passage fluidly communicating with the interior space. The discharge passage is selectively closed and opened by a valve device. The valve device is movable in the discharge passage. The valve device includes a first sealing portion and a second sealing portion selectively engaging with the discharge passage. The valve device is movable between a first position in which one of the first and the second sealing portions engages with the discharge passage and a second position in which the other of the first and the second sealing portion engages with the discharge passage. The discharge passage has a length measuring from the first end to the second end thereof, which is smaller than a length which measures a separation distance between the first and the second sealing portions.

公开(公告)号：US20230082548A1

公开(公告)日：2023-03-16

申请号：US17472931

申请日：2021-09-13

Applicant: Scott Wu

Inventor： Scott Wu

IPC: F04B49/24 ,  F04B53/10

Abstract: A relief device in air pump includes a main body defining an interior space and a discharge hole fluidly communicating with the interior space. The discharge hole is selectively closed and opened by a valve device. The valve device is movable in the discharge hole. The discharge hole includes a first air sealing structure and the valve device includes a second air sealing structure and a third air sealing structure adapted to selectively contact with the first air sealing structure to prevent air flowing outside of the main body through the discharge hole and in addition at least one pressure releasing structure, located between the second and the third air sealing structures, adapted to cooperate with the first air sealing structure to delimit a gap therebetween for air to flow outside of the main body.

公开(公告)号：US11555492B2

公开(公告)日：2023-01-17

申请号：US17197344

申请日：2021-03-10

Applicant: Scott Wu

Inventor： Scott Wu

IPC: F04B49/24 ,  F04B39/12 ,  F04B33/00 ,  F04B49/035

Abstract: An air compression pump includes a pump head and a pumping device fluidly connected with the pump head. The pumping device includes a cylinder fixed to the pump head. Further, a relief valve is fluidly connected with and received by the pump head. The relief valve defines a relief hole which is fluidly communicable with the first cylinder. The relief valve includes a valve body selectively closing the relief hole. The valve body is movable to an open position to relieve pressure in the air compression pump by allowing pressurized air to flow out of the air compression pump through the relief hole.

公开(公告)号：US11333138B2

公开(公告)日：2022-05-17

申请号：US17088827

申请日：2020-11-04

Applicant: Scott Wu

Inventor： Scott Wu

IPC: F04B33/00 ,  F04B39/12 ,  F04B25/00 ,  F04B37/12

Abstract: A three-stage compression air pump includes a pump head and a pumping device. The pumping device includes first and second cylinders and a plunger. The first cylinder is connected with the pump head and coupled to a first piston moving in the second cylinder. The second cylinder includes a first end cap and a second end cap respectively coupled to the two ends thereof. The first cylinder is inserted through the first end cap. The second end cap defines an orifice allowing outside air to flow into the second cylinder and includes a one-way valve preventing the air in the second cylinder from flowing outside the three-stage compression pump. The plunger is inserted in and movably coupled to the first cylinder and coupled to a second piston moving in the first cylinder and connected with the second end cap. The plunger is inserted through the first piston.

公开(公告)号：US11168678B2

公开(公告)日：2021-11-09

申请号：US16809834

申请日：2020-03-05

Applicant: Scott Wu

Inventor： Scott Wu

IPC: F16K15/20 ,  F04B33/00 ,  B60S5/04

Abstract: An inflation pump including a body having a cylinder and a head integrally formed with the cylinder. The cylinder includes a pressurizing space. The head includes a through-hole extending along a longitudinal axis. An intercommunication passage is disposed between and intercommunicates with the through-hole and the pressurizing space. A pressurizing unit is slidably received in the pressurizing space and is reciprocally slidable relative to the body. A nozzle unit includes a pressing device disposed in the through-hole. The pressing device includes a push seat having a check ring. The check ring includes an inner side abutting against the push seat and an outer side abutting against a portion of an inner periphery of the through-hole. The portion of the inner periphery of the through-hole is located between the intercommunication passage and the coupling end. The check ring permits air to flow only from the intercommunication passage towards the coupling end.

公开(公告)号：US20200056601A1

公开(公告)日：2020-02-20

申请号：US16103986

申请日：2018-08-16

Applicant: Scott Wu

Inventor： Scott Wu

IPC: F04B27/08 ,  F04B39/10 ,  F04B33/00 ,  F04B27/00 ,  F04B39/00 ,  F04B27/14

Abstract: A variable pressure air pump includes a first cylinder and a second cylinder movable relative to the first cylinder along a longitudinal axis. An air tube is mounted in the first and second cylinders. A mounting portion is integrally formed on a first end of the air tube. A first piston and a second piston compress air in the first and second cylinders. A connecting device is mounted to the first cylinder for coupling with an object to be inflated. An air escape device selectively seals a second chamber of the second cylinder to selectively compress the air in the second cylinder. A first check valve is mounted to the mounting portion of the air tube. A second check valve is mounted to the second piston.

公开(公告)号：US10557768B2

公开(公告)日：2020-02-11

申请号：US15725305

申请日：2017-10-05

Applicant: Scott Wu

Inventor： Scott Wu

IPC: G01L7/16

Abstract: A pressure gauge includes a base, a dial, an indicator, and an actuating device. The base defines a channel. The dial has graduations in a first region for low pressures, graduations in a second region for high pressures, and a middle graduation located between the first and second regions. The graduations in the first region are spaced at a first distance. The graduations in the second region are spaced at a second distance different from the first distance. The actuating device includes a pressure responding device and a plunger held in the channel. The plunger is abutted by the pressure responding device. The pressure responding device includes a first and second resilient member having a different modulus of elasticity and arranged in series. The shaft is rotated in response to movement of the plunger.