Portable pump capable of transmitting air pressure value via wireless transmission to mobile electronic device for indication

Patent metadata

Field	Value
Publication number	US-9587633-B2
Application number	US-201314093577-A
Country	US
Kind code	B2
Filing date	Dec 2, 2013
Priority date	Oct 18, 2013
Publication date	Mar 7, 2017
Grant date	Mar 7, 2017

Abstract

A portable pump includes a cylinder, a nozzle, a valve, a piston rod, a tube, and a pressure sensing device. The nozzle connects with the cylinder and includes a passage connectable with the inflatable. The valve is mounted between the cylinder and the nozzle. The piston rod has a rod hole and is connected with a piston and a handle. The handle includes a recess. The tube is connected with the valve. The pressure sensing device is disposed in the recess. The pressure sensing device can measure a pressure value of the air flowing into the recess and is connectable with a mobile electronic device via wireless transmission for indication.

First claim

What is claimed is:

1. A portable pump comprising:
a cylinder having a chamber;
a nozzle disposed on one end of the cylinder and adapted to be attachable with an inflatable, with the nozzle including a passage adapted to be connectable and in communication with the inflatable,
a valve mounted between the cylinder and the nozzle, wherein the valve includes an orifice and a limiting ring, wherein the orifice includes first and second channels connected and in communication with each other, with the first channel unidirectionally connected with the chamber;
a piston rod having a rod hole, with one end of the piston rod connected with a piston, and with another end of the piston rod connected with a handle, with the piston slidably disposed and reciprocal inside the chamber for pushing air unidirectionally passing through the valve and the passage into the inflatable, with the handle including a recess;
a tube connected with the valve and arranged through the piston rod and the piston, with two opposite ends of the tube respectively connected and in communication with the valve and the rod hole, with two opposite ends of the second channel respectively connected and in communication with the passage and the tube, wherein the limiting ring surrounds the valve and abuts against the chamber, wherein the limiting ring is made of a soft material, with an outer diameter of the limiting ring gradually increasing from an end adjacent to the piston to another end adjacent to the nozzle to cause the first channel of the orifice to be unidirectionally connected with the chamber; and
a pressure sensing device disposed in the recess, with the pressure sensing device including a wireless transmission circuit board, a sensing unit, and a power supply unit, with the sensing unit and the power supply unit electrically connected with the wireless transmission circuit board, with the sensing unit measuring an air pressure value of the air flowing into the recess, and with the wireless transmission circuit board connectable with a mobile electronic device via wireless transmission for indicating the air pressure value.

2. The portable pump as claimed in claim 1 , wherein the wireless transmission circuit board is a BLUETOOTH® circuit board capable of connecting to the mobile electronic device via BLUETOOTH® connection.

3. The portable pump as claimed in claim 1 , wherein the valve includes a first assembling hole connected and in communication with the orifice, wherein the piston includes a second assembling hole, and wherein the tube inserts through the second assembling hole and is fixed into the first assembling hole.

4. The portable pump as claimed in claim 1 , wherein the handle includes a through hole interconnecting with the recess, wherein the wireless transmission circuit board includes an indicator light arranged in the through hole, wherein the indicator light switches on as the wireless transmission circuit board wirelessly connects with the mobile electronic device, wherein a diffuser covers an opening of the through hole, and wherein the diffuser is made of a transparent material.

5. The portable pump as claimed in claim 1 , wherein the power supply unit includes at least one battery, wherein the recess includes a first joining portion formed at an inner periphery thereof, wherein the handle further includes a cover, and wherein the cover includes a second joining portion formed at an outer periphery thereof and engageable with the first joining portion.

6. The portable pump as claimed in claim 1 , wherein the recess includes a first engaging portion formed at an inner periphery thereof, wherein the pressure sensing device further includes a case arranged in the recess and accommodating the wireless transmission circuit board, the sensing unit and the power supply unit, wherein the case includes a vent and a second engaging portion, with the vent formed at one end face thereof formed and in communication with the rod hole, and with the second engaging portion engageable with the first engaging portion.

Assignees

• Wu Scott

Inventors

• Wu Scott

Classifications

• B60C23/02

  Signalling devices actuated by tyre pressure {(hand-held tyre pressure gauges G01L17/00)} · CPC title

• F04B33/005 Primary

  specially adapted for inflating tyres of non-motorised vehicles, e.g. cycles, tricycles · CPC title

• F04B53/128

  Annular disc valves · CPC title

• G01L17/00

  Devices or apparatus for measuring tyre pressure or the pressure in other inflated bodies · CPC title

• F04B33/00

  Pumps actuated by muscle power, e.g. for inflating · CPC title