US20170067458A1 - Hand pump for pumping air of lower pressure and high pressure - Google Patents
Hand pump for pumping air of lower pressure and high pressure Download PDFInfo
- Publication number
- US20170067458A1 US20170067458A1 US14/848,811 US201514848811A US2017067458A1 US 20170067458 A1 US20170067458 A1 US 20170067458A1 US 201514848811 A US201514848811 A US 201514848811A US 2017067458 A1 US2017067458 A1 US 2017067458A1
- Authority
- US
- United States
- Prior art keywords
- cylinder
- receptacle
- control valve
- air
- lid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B33/00—Pumps actuated by muscle power, e.g. for inflating
- F04B33/005—Pumps actuated by muscle power, e.g. for inflating specially adapted for inflating tyres of non-motorised vehicles, e.g. cycles, tricycles
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B33/00—Pumps actuated by muscle power, e.g. for inflating
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/0005—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00 adaptations of pistons
- F04B39/0016—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00 adaptations of pistons with valve arranged in the piston
Abstract
A hand pump includes a receptacle having a compartment and a chamber, a tubular member engaged into the chamber and secured to the receptacle, a cylinder engaged onto the tubular member, a piston is engaged between the tubular member and the cylinder for forcing an air from a front space of the cylinder into the tubular member with a lower pressure, a lid is attached to the cylinder and a check valve controls the air to flow only from the outer environment into the cylinder, a control valve member is engaged in the lid for controlling the air to flow through the lid, and an actuator is attached to the lid and engaged with the control valve member for opening the hole of the lid and for releasing the air selectively.
Description
- 1. Field of the Invention
- The present invention relates to a hand air pump, and more particularly to a hand air pump including an improved and simplified structure or configuration for pumping air of lower pressure and high pressure and arranged for allowing the user to easily and quickly actuate or operate the hand pump.
- 2. Description of the Prior Art
- Various kinds of typical hand pumps have been developed and provided for pumping air and normally comprise a pumping mechanism for generating or providing a pressurized air to inflate various inflatable devices or tubes or valves, such as sports balls, vehicle tires, cushioning members or the like. Some of the inflatable devices are required to be pumped with a lower pressure, but the other inflatable devices may be required to be pumped with an increased or higher pressure.
- For example, U.S. Pat. No. 5,779,457 to Chuang et al. discloses one of the typical hand air pumps comprising a different structure or configuration for pumping air of lower pressure and high pressure.
- However, the typical hand air pump includes a complicated structure or configuration that may not be easily and quickly made or manufactured and that may include a complicated making or manufacturing procedure and that may include a greatly increased manufacturing cost.
- The present invention has arisen to mitigate and/or obviate the afore-described disadvantages of the conventional hand pumps for pumping air of lower pressure and high pressure.
- The primary objective of the present invention is to provide a hand air pump including an improved and simplified structure or configuration for pumping air of lower pressure and high pressure and arranged for allowing the user to easily and quickly actuate or operate the hand pump.
- In accordance with one aspect of the invention, there is provided a hand pump comprising a receptacle including a partition provided therein to form a compartment and a chamber in the receptacle, the partition being located between the chamber and the compartment and including an opening formed in the partition and communicating with the chamber and the compartment of the receptacle, a tubular member including a first end portion engaged into the chamber and secured to the receptacle, and a second end portion extended out of the receptacle, and the tubular member including a bore formed therein and communicating with the opening of the partition and the compartment of the receptacle, a cylinder slidably engaged onto the tubular member, the cylinder including a first end portion engageable into the chamber of the receptacle and a second end portion extended out of the receptacle, the cylinder including a space having an inner diameter greater than an outer diameter of the tubular member, a piston attached to the second end portion of the tubular member and slidably engaged between the tubular member and the cylinder for separating the space of the cylinder into a front space and a rear space, the piston including a passage formed therein, a control valve device attached to the piston for controlling the air to flow through the passage of the piston selectively, a first check valve disposed between the piston and the control valve device for controlling the air to flow only from the control valve device through the passage of the piston and into the bore of the tubular member, and to prevent the air from flowing backwardly from the bore of the tubular member into the control valve device, a cover attached to the first end portion of the cylinder, a second check valve attached to the first end portion of the cylinder for controlling the air to flow from an outer environment into the front space of the cylinder when the cylinder is moved toward the receptacle, and to prevent the air from flowing out of the front space of the cylinder when the cylinder is moved away from the receptacle, a lid attached to the second end portion of the cylinder, the lid including a hole formed therein, a third check valve attached to the second end portion of the cylinder for controlling the air to flow only from the outer environment through the hole of the lid and into the rear space of the cylinder when the cylinder is moved away from the receptacle, and to prevent the air from flowing out of the rear space of the cylinder when the cylinder is moved toward the receptacle, a control valve member engaged in the lid for controlling the air to flow through the hole of the lid, and an actuator attached to the lid and engaged with the control valve member for selectively opening the hole of the lid, and arranged for allowing the user to easily and quickly actuate or operate the hand pump.
- The control valve member includes a sliding member slidably engaged in the cylinder, the sliding member includes a stem extendible out of the hole of the lid, and a spring biasing member is engaged with the sliding member for biasing the sliding member to block the hole of the lid selectively.
- The control valve member includes a barrel attached onto the second end portion of the cylinder, the barrel includes a compartment formed therein and includes a slot communicating with the compartment of the barrel, and the actuator is engaged in the compartment of the barrel and includes a shank extendible out of the slot of the barrel.
- The control valve device includes an outer peripheral groove formed therein, and a manifold formed in the control valve device and communicating with the passage of the piston and the outer peripheral groove of the control valve device, and a valve piece engaged into the outer peripheral groove of the control valve device and arranged to control the air to flow only from the front space of the cylinder into the manifold of the control valve device and into the bore of the tubular member when the cylinder is moved away from the receptacle, and to prevent the air from flowing from the rear space of the cylinder into the manifold of the control valve device and into the bore of the tubular member when the cylinder is moved toward the receptacle.
- The valve piece is selected from a sealing ring engaged into the outer peripheral groove of the control valve device. The receptacle includes a valve piece and a gasket engaged into the compartment of the receptacle, and a cap is secured to the receptacle for retaining the valve piece and the gasket within the compartment of the receptacle.
- Further objectives and advantages of the present invention will become apparent from a careful reading of the detailed description provided hereinbelow, with appropriate reference to the accompanying drawings.
-
FIG. 1 is an exploded view of a hand pump in accordance with the present invention; -
FIG. 2 is a perspective view of the hand pump for pumping air of lower pressure and high pressure; -
FIG. 3 is a cross sectional view of the hand pump, taken along lines 3-3 ofFIG. 2 ; -
FIGS. 4, 5 are enlarged partial cross sectional views of the hand pump; -
FIGS. 6, 7 are enlarged partial cross sectional views similar toFIGS. 4 and 5 respectively, illustrating the operation of the hand pump; and -
FIGS. 8, 9, 10, 11, 12, 13, 14, 15, 16 are cross sectional views similar toFIG. 3 , illustrating the operation of the hand pump. - Referring to the drawings, and initially to
FIGS. 1-5 , a hand pump in accordance with the present invention comprises areceptacle 10 including a compartment orchamber 11 formed therein, and including apartition 12 formed or provided in thechamber 11 of thereceptacle 10 for forming or defining a chamber orcompartment 13 in the front portion of thereceptacle 10, and thepartition 12 is arranged to be located between thechamber 11 and thecompartment 13 of thereceptacle 10 and includes anopening 14 formed in thepartition 12 and communicating with thechamber 11 and thecompartment 13 of thereceptacle 10. - A
valve piece 15 and agasket 16 are disposed or engaged into thecompartment 13 of thereceptacle 10, and acap 17 is attached or mounted or secured to thereceptacle 10 for anchoring or retaining or positioning thevalve piece 15 and thegasket 16 within thecompartment 13 of thereceptacle 10, and for engaging with the inflatable devices (not illustrated) and for providing a pressurized air to inflate the inflatable devices. The above-described structure or configuration for thevalve piece 15 and thegasket 16 and thecap 17 is typical and is not related to the present invention and will not be described in further details. - A
tubular member 20 includes one or front orfirst end portion 21 engaged into thechamber 11 of thereceptacle 10, and attached or mounted or secured to thereceptacle 10 with such as a threaded engagement or the like, and another or rear orsecond end portion 22 extended or located out of thereceptacle 10, and thetubular member 20 includes abore 23 formed therein and communicating with theopening 14 of thepartition 12 and thecompartment 13 of thereceptacle 10, but offset or spaced or separated from thechamber 11 of thereceptacle 10. - Another tubular member or
cylinder 30 is slidably disposed or engaged onto thetubular member 20, and includes one or front orfirst end portion 31 engageable into thechamber 11 of thereceptacle 10, and another or rear orsecond end portion 32 extended or located out of thereceptacle 10, and thecylinder 30 includes aninner space 33 formed therein and having an inner diameter greater than the outer diameter of thetubular member 20. Apiston 24 is attached or mounted or secured to the rear orsecond end portion 22 of thetubular member 20 and slidably engaged in theinner space 33 of thecylinder 30; i.e., thepiston 24 is slidably engaged between thetubular member 20 and thecylinder 30, and for spacing or separating theinner space 33 of thecylinder 30 into afront space 34 and arear space 35. - As shown in
FIGS. 1, 3, and 8-16 , thepiston 24 includes apassage 25 formed therein, and acontrol valve device 40 is attached or mounted or secured to thepiston 24 for controlling the air to flow through thepassage 25 of thepiston 24 selectively. Acheck valve 26 is disposed or engaged between thepiston 24 and thecontrol valve device 40, or is attached or mounted or secured to thepiston 24 for controlling the air to flow only from thecontrol valve device 40 through thepassage 25 of thepiston 24 and into thebore 23 of thetubular member 20, and to prevent the air from flowing backwardly from thebore 23 of thetubular member 20 into thecontrol valve device 40. - The
control valve device 40 includes an outer peripheral groove 41 (FIGS. 1, 4, 6 ) formed in the outer peripheral portion thereof, and includes amanifold 42 formed therein (FIGS. 1, 3-4, 6 ) and communicating with thepassage 25 of thepiston 24 and the outerperipheral groove 41 of thecontrol valve device 40, and anothervalve piece 43, such as asealing ring 43 is disposed or engaged into the outerperipheral groove 41 of thecontrol valve device 40, and arranged for allowing the air to flow only from thefront space 34 of thecylinder 30 into themanifold 42 of thecontrol valve device 40 and into thebore 23 of thetubular member 20 when thecylinder 30 is moved rightward away from the receptacle 10 (FIGS. 3, 6 ), and to prevent the air from flowing from therear space 35 of thecylinder 30 into themanifold 42 of thecontrol valve device 40 and into thebore 23 of thetubular member 20 when thecylinder 30 is moved leftward and toward the receptacle 10 (FIGS. 4, 10 ). - A
cover 36 is attached or mounted or secured to and/or engaged into the front orfirst end portion 31 of thecylinder 30, and anothercheck valve 37 is attached or mounted or secured to the front orfirst end portion 31 of thecylinder 30 for controlling the air to flow only from the outer environment into thefront space 34 of thecylinder 30 when thecylinder 30 is moved leftward and toward thereceptacle 10, and to prevent the air from flowing out of thefront space 34 of thecylinder 30 when thecylinder 30 is moved rightward away from thereceptacle 10. Another cover orlid 50 is attached or mounted or secured to and/or engaged into the rear orsecond end portion 32 of thecylinder 30, and afurther check valve 51, such as a cylindrical basket 51(FIG. 1 ) is also attached or mounted or secured to the rear orsecond end portion 32 of thecylinder 30 for controlling the air to flow only from the outer environment into therear space 35 of thecylinder 30 when thecylinder 30 is moved rightward away from thereceptacle 10, and to prevent the air from flowing out of therear space 35 of thecylinder 30 when thecylinder 30 is moved leftward and toward thereceptacle 10. - As shown in
FIGS. 1, 3, 5, and 7 , thelid 50 includes ahole 52 formed therein, a slidingmember 53 is slidably received or engaged in thecylinder 30 and includes astem 54 extendible out of thehole 52 of thelid 50, and aspring biasing member 55 is attached or mounted or secured to thelid 50 and engaged with the slidingmember 53 for biasing and forcing or moving the slidingmember 53 to block thehole 52 of thelid 50 selectively (FIG. 5 ) and/or for controlling the air to flow through thehole 52 of thelid 50 selectively, and arranged for allowing the air to flow through thehole 52 of thelid 50 selectively when the slidingmember 53 is depressed or disengaged from thehole 52 of thelid 50 with the stem 54 (FIG. 7 ). The slidingmember 53 and thespring biasing member 55 may thus be formed and acted as acontrol valve member 53 that is engaged in thelid 50 for controlling the air to flow through thehole 52 of thelid 50. - A control ferrule or hand grip or
barrel 60 is attached or mounted or secured onto the rear orsecond end portion 32 of thecylinder 30 and includes acompartment 61 formed therein (FIGS. 5, 7 ), and includes aslot 62 formed therein and communicating with thecompartment 61 of thebarrel 60, and includes adepression 63 formed in the outer portion thereof and communicating with theslot 62 of thebarrel 60, and anactuator 65 is movably disposed or engaged in thecompartment 61 of thebarrel 60 or attached to thelid 50 and contacted or engaged with thestem 54 of the slidingmember 53, and includes a knob orshank 66 extendible out of theslot 62 of thebarrel 60 for being actuated or operated by the user to depress thestem 54 and to disengage the slidingmember 53 from thehole 52 of thelid 50 selectively. - In operation, as shown in
FIGS. 3, 5-6 and 8-11 , theshank 66 of theactuator 65 is movable along theslot 62 of thebarrel 60 and selectively disengaged from thestem 54 of the slidingmember 53, at this moment, the slidingmember 53 may be biased and forced and moved by thespring biasing member 55 to block thehole 52 of thelid 50 selectively (FIG. 5 ) and arranged for allowing the air to flow only from the outer environment into and through thehole 52 of thelid 50 selectively and into therear space 35 of thecylinder 30. When thecylinder 30 is pulled and moved away from thereceptacle 10 from the position as shown inFIG. 8 to that shown inFIGS. 3 and 9 , the air in thefront space 34 of thecylinder 30 is controlled by the control valve device 40 (FIG. 6 ) to flow into themanifold 42 of thecontrol valve device 40 and into thebore 23 of thetubular member 20 and then into thecompartment 13 of thereceptacle 10, and for providing the pressurized air of a relatively lower pressure to inflate the inflatable devices. - When the
cylinder 30 is pushed and moved toward thereceptacle 10 from the position as shown inFIG. 9 to that shown inFIGS. 10 and 11 , the air in therear space 35 of thecylinder 30 is controlled by the control valve device 40 (FIG. 4 ) to flow into themanifold 42 of thecontrol valve device 40 and then to flow into thebore 23 of thetubular member 20 and then to flow into thecompartment 13 of thereceptacle 10, and for providing the pressurized air of a relatively higher pressure to inflate the inflatable devices. - On the contrary, as shown in
FIGS. 12-16 , theactuator 65 may be moved to engage with thestem 54 of the sliding member 53 (FIG. 7 ) and may depress and disengage the slidingmember 53 from thehole 52 of thelid 50 such that the air in therear space 35 of thecylinder 30 may freely flow out through thehole 52 of thelid 50. When thecylinder 30 is pulled and moved away from thereceptacle 10 from the position as shown inFIG. 12 to that shown inFIGS. 13 and 14 , the air in thefront space 34 of thecylinder 30 may also be controlled by the control valve device 40 (FIG. 6 ) to flow into themanifold 42 of thecontrol valve device 40 and into thebore 23 of thetubular member 20 and then into thecompartment 13 of thereceptacle 10, and for providing the pressurized air of a relatively lower pressure to inflate the inflatable devices. When thecylinder 30 is pushed and moved toward thereceptacle 10 from the position as shown inFIG. 14 to that shown inFIGS. 15 and 16 , the air in therear space 35 of thecylinder 30 may flow out and may not be pressurized at this moment. - Accordingly, the hand pump in accordance with the present invention includes an improved and simplified structure or configuration for pumping air of lower pressure and high pressure and arranged for allowing the user to easily and quickly actuate or operate the hand pump.
- Although this invention has been described with a certain degree of particularity, it is to be understood that the present disclosure has been made by way of example only and that numerous changes in the detailed construction and the combination and arrangement of parts may be resorted to without departing from the spirit and scope of the invention as hereinafter claimed.
Claims (6)
1. A hand pump comprising:
a receptacle including a partition provided therein to form a compartment and a chamber in said receptacle, said partition being located between said chamber and said compartment and including an opening formed in said partition and communicating with said chamber and said compartment of said receptacle,
a tubular member including a first end portion engaged into said chamber and secured to said receptacle, and a second end portion extended out of said receptacle, and said tubular member including a bore formed therein and communicating with said opening of said partition and said compartment of said receptacle,
a cylinder slidably engaged onto said tubular member, said cylinder including a first end portion engageable into said chamber of said receptacle and a second end portion extended out of said receptacle, said cylinder including a space having an inner diameter greater than an outer diameter of said tubular member,
a piston attached to said second end portion of said tubular member and slidably engaged between said tubular member and said cylinder for separating said space of said cylinder into a front space and a rear space, said piston including a passage formed therein,
a control valve device attached to said piston for controlling the air to flow through said passage of said piston selectively,
a first check valve disposed between said piston and said control valve device for controlling the air to flow only from said control valve device through said passage of said piston and into said bore of said tubular member, and to prevent the air from flowing backwardly from said bore of said tubular member into said control valve device,
a cover attached to said first end portion of said cylinder,
a second check valve attached to said first end portion of said cylinder for controlling the air to flow from an outer environment into said front space of said cylinder when said cylinder is moved toward said receptacle, and to prevent the air from flowing out of said front space of said cylinder when said cylinder is moved away from said receptacle,
a lid attached to said second end portion of said cylinder, said lid including a hole formed therein,
a third check valve attached to said second end portion of said cylinder for controlling the air to flow only from said outer environment through said hole of said lid and into said rear space of said cylinder when said cylinder is moved away from said receptacle, and to prevent the air from flowing out of said rear space of said cylinder when said cylinder is moved toward said receptacle,
a control valve member engaged in said lid for controlling the air to flow through said hole of said lid, and
an actuator attached to said lid and engaged with said control valve member for selectively opening said hole of said lid.
2. The hand pump as claimed in claim 1 , wherein said control valve member includes a sliding member slidably engaged in said cylinder, said sliding member includes a stem extendible out of said hole of said lid, and a spring biasing member is engaged with said sliding member for biasing said sliding member to block said hole of said lid selectively.
3. The hand pump as claimed in claim 2 , wherein said control valve member includes a barrel attached onto said second end portion of said cylinder, said barrel includes a compartment formed therein and includes a slot communicating with said compartment of said barrel, and said actuator is engaged in said compartment of said barrel and includes a shank extendible out of said slot of said barrel.
4. The hand pump as claimed in claim 1 , wherein said control valve device includes an outer peripheral groove formed therein, and a manifold formed in said control valve device and communicating with said passage of said piston and said outer peripheral groove of said control valve device, and a valve piece engaged into said outer peripheral groove of said control valve device and arranged to control the air to flow only from said front space of said cylinder into said manifold of said control valve device and into said bore of said tubular member when said cylinder is moved away from said receptacle, and to prevent the air from flowing from said rear space of said cylinder into said manifold of said control valve device and into said bore of said tubular member when said cylinder is moved toward said receptacle.
5. The hand pump as claimed in claim 4 , wherein said valve piece is selected from a sealing ring engaged into said outer peripheral groove of said control valve device.
6. The hand pump as claimed in claim 1 , wherein said receptacle includes a valve piece and a gasket engaged into said compartment of said receptacle, and a cap secured to said receptacle for retaining said valve piece and said gasket within said compartment of said receptacle.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/848,811 US20170067458A1 (en) | 2015-09-09 | 2015-09-09 | Hand pump for pumping air of lower pressure and high pressure |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/848,811 US20170067458A1 (en) | 2015-09-09 | 2015-09-09 | Hand pump for pumping air of lower pressure and high pressure |
Publications (1)
Publication Number | Publication Date |
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US20170067458A1 true US20170067458A1 (en) | 2017-03-09 |
Family
ID=58191114
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US14/848,811 Abandoned US20170067458A1 (en) | 2015-09-09 | 2015-09-09 | Hand pump for pumping air of lower pressure and high pressure |
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US (1) | US20170067458A1 (en) |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6027316A (en) * | 1997-09-30 | 2000-02-22 | Wang; Lopin | Air pump capable of inflating an inflatable object regardless of air pressure level in the inflatable object |
US6120265A (en) * | 1999-03-15 | 2000-09-19 | Wu; Scott | Two-stroke operable pump |
US6220274B1 (en) * | 2000-05-25 | 2001-04-24 | Lo-Pin Wang | Air valve connection head of inflation device with air storage bottle |
US6290496B1 (en) * | 1998-02-24 | 2001-09-18 | Radiance Inc. | Apparatus and method for photothermal destruction of oral bacteria |
US6702556B2 (en) * | 2000-02-07 | 2004-03-09 | Fx Airguns Ab | Multi-cylinder compression pump |
US8025491B2 (en) * | 2007-10-19 | 2011-09-27 | Lopin Wang | Air pump having selectable low pressure and high pressure mode |
-
2015
- 2015-09-09 US US14/848,811 patent/US20170067458A1/en not_active Abandoned
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6027316A (en) * | 1997-09-30 | 2000-02-22 | Wang; Lopin | Air pump capable of inflating an inflatable object regardless of air pressure level in the inflatable object |
US6290496B1 (en) * | 1998-02-24 | 2001-09-18 | Radiance Inc. | Apparatus and method for photothermal destruction of oral bacteria |
US6120265A (en) * | 1999-03-15 | 2000-09-19 | Wu; Scott | Two-stroke operable pump |
US6702556B2 (en) * | 2000-02-07 | 2004-03-09 | Fx Airguns Ab | Multi-cylinder compression pump |
US6220274B1 (en) * | 2000-05-25 | 2001-04-24 | Lo-Pin Wang | Air valve connection head of inflation device with air storage bottle |
US8025491B2 (en) * | 2007-10-19 | 2011-09-27 | Lopin Wang | Air pump having selectable low pressure and high pressure mode |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: BETO ENGINEERING & MARKETING CO., LTD., TAIWAN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:WANG, LO PIN;REEL/FRAME:036521/0512 Effective date: 20150709 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |