US20070048149A1 - Oil suction pump - Google Patents
Oil suction pump Download PDFInfo
- Publication number
- US20070048149A1 US20070048149A1 US11/211,610 US21161005A US2007048149A1 US 20070048149 A1 US20070048149 A1 US 20070048149A1 US 21161005 A US21161005 A US 21161005A US 2007048149 A1 US2007048149 A1 US 2007048149A1
- Authority
- US
- United States
- Prior art keywords
- oil suction
- suction pump
- air
- pump
- air outlet
- 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
Links
- 230000006835 compression Effects 0.000 claims abstract description 13
- 238000007906 compression Methods 0.000 claims abstract description 13
- 238000007789 sealing Methods 0.000 claims description 22
- 238000000034 method Methods 0.000 description 1
Images
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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
- F04F3/00—Pumps using negative pressure acting directly on the liquid to be pumped
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
- F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
- F04F5/14—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being elastic fluid
- F04F5/16—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being elastic fluid displacing elastic fluids
- F04F5/20—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being elastic fluid displacing elastic fluids for evacuating
Definitions
- the present invention relates to an oil suction pump, and more particularly to an oil suction pump having an air outlet normally closed by a valve and openable by air flowing against and pushing the valve backward. Therefore, a manual air pump may be externally connected to the oil suction pump, allowing a user to operate the oil suction pump via a power-actuated air compressor or the manual air pump, depending on actual need.
- U.S. Pat. No. 6,736,603 B2 discloses an oil suction pump invented by the same inventor of the present invention.
- the oil suction pump disclosed in U.S. Pat. No. 6,736,603 B2 includes a float that ascends with the level of oil sucked into a container connected with the oil suction pump, such that an air intake valve for controlling the suction of oil is automatically closed when the level of oil sucked into the container reaches a preset height.
- the oil suction pump disclosed in U.S. Pat. No. 6,736,603 B2 is operable only when it is connected to a power-actuated air compressor.
- the oil suction pump disclosed in U.S. Pat. No. 6,736,603 B2 is workable to automatically suck oil only in a power-actuated manner.
- the oil suction pump is completely useless when it is used in an environment without power supply.
- a primary object of the present invention is to provide an oil suction pump, in which a normally closed air outlet is controlled by flowing air to open. Therefore, a manual air pump may be externally connected to the oil suction pump, allowing the oil suction pump to be operated via a power-actuated air compressor or the manual air pump, so that the oil suction pump has expanded range of application and may be more conveniently operated.
- FIG. 1 is a vertical sectional view of a conventional oil suction pump
- FIG. 2 is a perspective view of an oil suction pump according to the present invention.
- FIG. 3 is a vertical sectional view of the oil suction pump of FIG. 2 ;
- FIG. 4 is a fragmentary and enlarged sectional view of FIG. 3 showing the structure of the oil suction pump of the present invention
- FIG. 5 is another vertical sectional view of the oil suction pump of the present invention showing the manner in which high-pressure air flows through an air outlet of the oil suction pump;
- FIG. 6 is a fragmentary and enlarged sectional view of FIG. 5 showing the structure of the oil suction pump of the present invention
- FIG. 7 is a vertical sectional view of the oil suction pump of the present invention showing the operating of a manual air pump to suck in air;
- FIG. 8 is a sectional view of a relief valve included in the oil suction pump of the present invention.
- FIG. 9 is a sectional view of the relief valve of FIG. 8 in a position of relieving air.
- FIG. 1 is a vertical sectional view of a conventional oil suction pump, based on which the present invention is made.
- the oil suction pump of FIG. 1 includes a push switch 1 , a shaft 2 located below the push switch 1 , a first compression spring 3 provided around an upper portion of the shaft 2 for the push switch 1 to be elastically moved downward within a predetermined range, and an enclosed passage 4 for receiving the shaft 2 therein.
- the enclosed passage 4 has an open upper end communicating with the push switch 1 and is communicable at two opposite sides with an air outlet pipe 5 and an air inlet pipe 6 , respectively.
- An open lower end of the enclosed passage 4 communicates with a slide way 8 , in which a first end of a float arm 7 is located.
- First and second airtight seal rings 91 , 92 are provided near upper and lower ends, respectively, of the shaft 2 , so that the shaft 2 located in the enclosed passage 4 is always in an airtight relation with the enclosed passage 4 near the upper and the lower end of the shaft 2 .
- a third airtight seal ring 93 is provided near a middle portion of the shaft 2 . When the shaft 2 is vertically moved in the enclosed passage 4 , the third seal ring 93 is also moved to different height to either close or open a communicating path between an inner end of the air outlet pipe 5 and the enclosed passage 4 .
- a second compression spring 31 is provided near the middle portion of the shaft 2 to control a magnitude of vertical movement of the shaft 2 in the enclosed passage 4 .
- the enclosed passage 4 includes a downward flared portion in its inner bore.
- the third airtight seal ring 93 on the shaft 2 is just located at a height to firmly abut against the flared portion of the enclosed passage 4 and therefore seals the communicating path between the enclosed passage 4 and the air outlet pipe 5 .
- the third airtight seal ring 93 is also moved downward to separate from the flared portion of the enclosed passage 4 for the air outlet pipe 5 to communicate with the enclosed passage 4 .
- the shaft 2 has a lower end in the form of a hook 21 .
- the hook 21 is located in the slide way 8 to detachably engage with a hook 71 provided at the first end of the float arm 7 horizontally located below the lower end of the shaft 2 .
- the float arm 7 is pivotally turnable about a supporting point 72 provided close to and below the hook 71 .
- a second end of the float arm 7 is pivotally connected to a float 73 .
- the conventional oil suction pump of FIG. 1 may also be internally provided with an air drawing passage 12 to communicate with the air outlet pipe 5 .
- a floating member 13 is provided in the air drawing passage 12 as an auxiliary means to control the air outlet pipe 5 .
- the floating member 13 has a diameter-reduced neck portion provided near an upper end thereof, and a fourth airtight seal ring 94 is provided around the neck portion.
- FIGS. 2 and 3 are perspective and vertical sectional views, respectively, of an oil suction pump according to the present invention.
- the present invention further includes a new cover mounted to a front end of an air outlet 14 to replace that used in the conventional oil suction pump of FIG. 1 .
- the new cover consists of a housing 15 , a muffle 166 , and a valve set 16 .
- the housing 15 is provided on an inner wall surface of a rear end close to the front end of the air outlet 14 with screw threads 152 , so that the housing 15 may be screwed onto an outer wall surface of the front end of the air outlet 14 .
- the housing 15 is also provided on its circumferential wall with several rows of axially sequentially arranged vents 151 .
- a front end of the housing 15 has a radially inward projected portion, a center of which is molded into a sleeve seat 153 .
- a radially inward annular projection 165 is formed around an inner bore of the sleeve seat 153 near an inner end thereof.
- the valve set 16 includes a base 161 , a compression spring 162 , and a sealing head 163 .
- the base 161 is provided around an outer circumferential surface with an annular groove 1611 , which is fitly engaged with the annular projection 165 on the sleeve seat 153 when the base 161 is set in the inner bore of the sleeve seat 153 .
- the base 161 is provided at a central area with a bore 1612 to slidably receive a long shaft 164 rearward extended from a front portion of the sealing head 163 .
- a free end of the long shaft 164 is expanded after the long shaft 164 has been inserted into the bore 1612 , so that the long shaft 164 is prevented from separating from the bore 1612 of the base 161 .
- the compression spring 162 is mounted around the long shaft 164 behind the front portion of the sealing head 163 to provide a restoring force for the long shaft 164 to elastically reciprocate in the bore 1612 of the base 161 .
- the front portion of the sealing head 163 in front of the long shaft 164 is a cylindrical body having a neck portion 167 , around which an airtight seal ring 168 is mounted.
- the compression spring 162 normally pushes the front portion of the sealing head 163 against a front opening 141 of the air outlet 14 of the air suction pump, such that the airtight seal ring 168 mounted on the neck portion 167 of the sealing head 163 tightly seals the front opening 141 .
- valve set 16 With the valve set 16 mounted in the housing 15 and the vents 151 formed on the housing 15 , it is possible to conveniently connect a manual air pump 17 and a pipe holder 18 for temporarily holding an oil suction pipe (not shown) to an outer shell of the oil suction pump.
- the manual air pump 17 is provided at predetermined positions with a movable connector 171 for connecting to the air inlet pipe 6 , and a relief valve 20 .
- FIGS. 4, 5 , and 6 Please refer to FIGS. 4, 5 , and 6 for the operation of the oil suction pump of the present invention.
- a user wants to use a power-actuated air compressor to operate the oil suction pump, simply connects an air pipe connector on the air compressor to the air inlet pipe 6 of the oil suction pump, and high-pressure air 62 supplied from the air compressor, as indicated by the arrows in FIGS. 5 and 6 , would push the sealing head 163 away from the front opening 141 of the air outlet 14 and compress the compression spring 162 , so that the high-pressure air 62 passes the muffle 166 and is muffled before flowing out of the housing 15 via the vents 151 .
- the container 10 When the air is blown out of the container 10 , the container 10 is vacuumized to allow suction of oil 11 into the container 10 .
- the air compressor When the oil suction is completed, the air compressor is shut off, and the compression spring 162 mounted on the long shaft 164 of the sealing head 163 automatically restores from the compressed state to move the sealing head 163 forward, so that the front portion of the sealing head 163 is pushed against the front opening 141 of the air inlet 14 of the oil suction pump with the airtight seal ring 168 around the neck portion 167 of the sealing head 163 tightly sealing the front opening 141 again.
- FIG. 8 shows the structure of the relief valve 20 provided on the outer shell of the manual air pump 17 .
- the relief valve 20 is internally provided with a push button 201 , a compression spring 202 , a sealing head 203 , and an airtight seal ring 204 mounted on the sealing head 203 to normally seal an air passage 205 in the relief valve 20 .
- the push button 201 is downward pressed, the sealing head 203 is moved downward simultaneously, so that the airtight seal ring 204 on the sealing head 203 does not seal the air passage 205 , as shown in FIG. 9 , and air in the manual air pump 17 may be relieved via the air passage 205 , and the manual air pump 17 is ready for use next time.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Abstract
An oil suction pump has an air outlet normally closed by a valve controlled via a compression spring, and the valve may be pushed backward by flowing air to open the air outlet. Therefore, the oil suction pump may be connected to an air compressor or to a manual air pump to obtain flowing air to push backward the valve and thereby open the air outlet and vacuumize a container connected to the oil suction pump for sucking oil into the container. A user may freely select to operate the oil suction pump via the air compressor or the manual air pump depending on actual need.
Description
- The present invention relates to an oil suction pump, and more particularly to an oil suction pump having an air outlet normally closed by a valve and openable by air flowing against and pushing the valve backward. Therefore, a manual air pump may be externally connected to the oil suction pump, allowing a user to operate the oil suction pump via a power-actuated air compressor or the manual air pump, depending on actual need.
- U.S. Pat. No. 6,736,603 B2 discloses an oil suction pump invented by the same inventor of the present invention. The oil suction pump disclosed in U.S. Pat. No. 6,736,603 B2 includes a float that ascends with the level of oil sucked into a container connected with the oil suction pump, such that an air intake valve for controlling the suction of oil is automatically closed when the level of oil sucked into the container reaches a preset height. It is noted the oil suction pump disclosed in U.S. Pat. No. 6,736,603 B2 is operable only when it is connected to a power-actuated air compressor. In other words, the oil suction pump disclosed in U.S. Pat. No. 6,736,603 B2 is workable to automatically suck oil only in a power-actuated manner. The oil suction pump is completely useless when it is used in an environment without power supply.
- Although there are many commercially available oil suction pumps, either power-driven or manual-automatic ones, such as the oil suction pump disclosed in U.S. Pat. No. 6,558,138 B2, none of them are similar to U.S. Pat. No. 6,736,603 B2 in terms of the operating manner thereof. That is, none of the currently available oil suction pumps use a float to control the automatic close of the air intake valve for controlling the suction of oil and prevent oil from jetting out of the air outlet in the process of sucking oil into a container.
- It is therefore tried by the inventor to improve the oil suction pump disclosed in U.S. Pat. No. 6,736,603 B2, so as to develop an oil suction pump that has expanded range of application, and allows a user to automatically operate the oil suction pump via a power-actuated air compressor or to manually operate the oil suction pump via a manual air pump externally connected to the oil suction pump, depending on actual need.
- A primary object of the present invention is to provide an oil suction pump, in which a normally closed air outlet is controlled by flowing air to open. Therefore, a manual air pump may be externally connected to the oil suction pump, allowing the oil suction pump to be operated via a power-actuated air compressor or the manual air pump, so that the oil suction pump has expanded range of application and may be more conveniently operated.
- The structure and the technical means adopted by the present invention to achieve the above and other objects can be best understood by referring to the following detailed description of the preferred embodiments and the accompanying drawings, wherein
-
FIG. 1 is a vertical sectional view of a conventional oil suction pump; -
FIG. 2 is a perspective view of an oil suction pump according to the present invention; -
FIG. 3 is a vertical sectional view of the oil suction pump ofFIG. 2 ; -
FIG. 4 is a fragmentary and enlarged sectional view ofFIG. 3 showing the structure of the oil suction pump of the present invention; -
FIG. 5 is another vertical sectional view of the oil suction pump of the present invention showing the manner in which high-pressure air flows through an air outlet of the oil suction pump; -
FIG. 6 is a fragmentary and enlarged sectional view ofFIG. 5 showing the structure of the oil suction pump of the present invention; -
FIG. 7 is a vertical sectional view of the oil suction pump of the present invention showing the operating of a manual air pump to suck in air; -
FIG. 8 is a sectional view of a relief valve included in the oil suction pump of the present invention; and -
FIG. 9 is a sectional view of the relief valve ofFIG. 8 in a position of relieving air. - Please refer to
FIG. 1 that is a vertical sectional view of a conventional oil suction pump, based on which the present invention is made. As shown, the oil suction pump ofFIG. 1 includes apush switch 1, ashaft 2 located below thepush switch 1, afirst compression spring 3 provided around an upper portion of theshaft 2 for thepush switch 1 to be elastically moved downward within a predetermined range, and an enclosedpassage 4 for receiving theshaft 2 therein. - The enclosed
passage 4 has an open upper end communicating with thepush switch 1 and is communicable at two opposite sides with anair outlet pipe 5 and anair inlet pipe 6, respectively. An open lower end of the enclosedpassage 4 communicates with aslide way 8, in which a first end of a float arm 7 is located. - First and second
airtight seal rings shaft 2, so that theshaft 2 located in the enclosedpassage 4 is always in an airtight relation with the enclosedpassage 4 near the upper and the lower end of theshaft 2. A thirdairtight seal ring 93 is provided near a middle portion of theshaft 2. When theshaft 2 is vertically moved in the enclosedpassage 4, thethird seal ring 93 is also moved to different height to either close or open a communicating path between an inner end of theair outlet pipe 5 and the enclosedpassage 4. Asecond compression spring 31 is provided near the middle portion of theshaft 2 to control a magnitude of vertical movement of theshaft 2 in the enclosedpassage 4. More particularly, the enclosedpassage 4 includes a downward flared portion in its inner bore. When theshaft 2 is not downward moved to compress thesecond compression spring 31, the thirdairtight seal ring 93 on theshaft 2 is just located at a height to firmly abut against the flared portion of the enclosedpassage 4 and therefore seals the communicating path between the enclosedpassage 4 and theair outlet pipe 5. And, when theshaft 2 is moved downward to compress thesecond compression spring 31, the thirdairtight seal ring 93 is also moved downward to separate from the flared portion of the enclosedpassage 4 for theair outlet pipe 5 to communicate with the enclosedpassage 4. - The
shaft 2 has a lower end in the form of ahook 21. Thehook 21 is located in theslide way 8 to detachably engage with ahook 71 provided at the first end of the float arm 7 horizontally located below the lower end of theshaft 2. The float arm 7 is pivotally turnable about a supportingpoint 72 provided close to and below thehook 71. A second end of the float arm 7 is pivotally connected to afloat 73. When the conventional oil suction pump ofFIG. 1 is connected to acontainer 10 for suckingoil 11 thereinto, thefloat 73 ascends when theoil 11 reaches a predetermined level in thecontainer 10. - The conventional oil suction pump of
FIG. 1 may also be internally provided with anair drawing passage 12 to communicate with theair outlet pipe 5. A floatingmember 13 is provided in theair drawing passage 12 as an auxiliary means to control theair outlet pipe 5. Thefloating member 13 has a diameter-reduced neck portion provided near an upper end thereof, and a fourthairtight seal ring 94 is provided around the neck portion. When theoil 11 sucked into thecontainer 10 reaches such a level to move the floatingmember 13 upward, the fourthairtight seal ring 94 is also moved upward to close theair drawing passage 12 and therefore prevents theoil 11 from flowing into and jetting out via theair outlet pipe 5. - Please refer to
FIGS. 2 and 3 that are perspective and vertical sectional views, respectively, of an oil suction pump according to the present invention. In addition to the above-mentioned structure included in the conventional oil suction pump ofFIG. 1 , the present invention further includes a new cover mounted to a front end of anair outlet 14 to replace that used in the conventional oil suction pump ofFIG. 1 . The new cover consists of ahousing 15, amuffle 166, and a valve set 16. - The
housing 15 is provided on an inner wall surface of a rear end close to the front end of theair outlet 14 withscrew threads 152, so that thehousing 15 may be screwed onto an outer wall surface of the front end of theair outlet 14. Thehousing 15 is also provided on its circumferential wall with several rows of axially sequentially arranged vents 151. A front end of thehousing 15 has a radially inward projected portion, a center of which is molded into asleeve seat 153. A radially inwardannular projection 165 is formed around an inner bore of thesleeve seat 153 near an inner end thereof. - The valve set 16 includes a
base 161, acompression spring 162, and a sealinghead 163. Thebase 161 is provided around an outer circumferential surface with anannular groove 1611, which is fitly engaged with theannular projection 165 on thesleeve seat 153 when thebase 161 is set in the inner bore of thesleeve seat 153. Thebase 161 is provided at a central area with abore 1612 to slidably receive along shaft 164 rearward extended from a front portion of the sealinghead 163. A free end of thelong shaft 164 is expanded after thelong shaft 164 has been inserted into thebore 1612, so that thelong shaft 164 is prevented from separating from thebore 1612 of thebase 161. Thecompression spring 162 is mounted around thelong shaft 164 behind the front portion of the sealinghead 163 to provide a restoring force for thelong shaft 164 to elastically reciprocate in thebore 1612 of thebase 161. The front portion of the sealinghead 163 in front of thelong shaft 164 is a cylindrical body having aneck portion 167, around which anairtight seal ring 168 is mounted. Thecompression spring 162 normally pushes the front portion of the sealinghead 163 against afront opening 141 of theair outlet 14 of the air suction pump, such that theairtight seal ring 168 mounted on theneck portion 167 of the sealinghead 163 tightly seals thefront opening 141. - With the valve set 16 mounted in the
housing 15 and thevents 151 formed on thehousing 15, it is possible to conveniently connect amanual air pump 17 and apipe holder 18 for temporarily holding an oil suction pipe (not shown) to an outer shell of the oil suction pump. Themanual air pump 17 is provided at predetermined positions with amovable connector 171 for connecting to theair inlet pipe 6, and arelief valve 20. - Please refer to
FIGS. 4, 5 , and 6 for the operation of the oil suction pump of the present invention. When a user wants to use a power-actuated air compressor to operate the oil suction pump, simply connects an air pipe connector on the air compressor to theair inlet pipe 6 of the oil suction pump, and high-pressure air 62 supplied from the air compressor, as indicated by the arrows inFIGS. 5 and 6 , would push the sealinghead 163 away from thefront opening 141 of theair outlet 14 and compress thecompression spring 162, so that the high-pressure air 62 passes themuffle 166 and is muffled before flowing out of thehousing 15 via thevents 151. When the air is blown out of thecontainer 10, thecontainer 10 is vacuumized to allow suction ofoil 11 into thecontainer 10. When the oil suction is completed, the air compressor is shut off, and thecompression spring 162 mounted on thelong shaft 164 of the sealinghead 163 automatically restores from the compressed state to move the sealinghead 163 forward, so that the front portion of the sealinghead 163 is pushed against thefront opening 141 of theair inlet 14 of the oil suction pump with theairtight seal ring 168 around theneck portion 167 of the sealinghead 163 tightly sealing thefront opening 141 again. - On the other hand, when a user wants to manually operate the oil suction pump of the present invention, simply connects the
movable connector 171 on themanual air pump 17 to theair inlet pipe 6 of the oil suction pump, as shown inFIG. 7 . Before themanual air pump 17 is operated, there is not any high-pressure air 62 flowing into theair outlet 14 to push open the valve set 16, and the valve set 16 is in a closed state. The user needs only to vertically push and pull ahandle 172 of themanual air pump 17, and thecontainer 10 may be vacuumized to allow suction of oil into thecontainer 10. -
FIG. 8 shows the structure of therelief valve 20 provided on the outer shell of themanual air pump 17. As shown, therelief valve 20 is internally provided with apush button 201, acompression spring 202, a sealinghead 203, and anairtight seal ring 204 mounted on the sealinghead 203 to normally seal anair passage 205 in therelief valve 20. When thepush button 201 is downward pressed, the sealinghead 203 is moved downward simultaneously, so that theairtight seal ring 204 on the sealinghead 203 does not seal theair passage 205, as shown inFIG. 9 , and air in themanual air pump 17 may be relieved via theair passage 205, and themanual air pump 17 is ready for use next time.
Claims (12)
1. An oil suction pump, comprising a cover mounted to a front end of an air outlet of said oil suction pump, a manual air pump externally connected to a shell of said oil suction pump, and an oil suction pipe holder externally connected to the shell of said oil suction pump; and said manual air pump being provided with a movable connector identical to an air inlet connector that is usually provided on an air compressor, and a relief valve.
2. The oil suction pump as claimed in claim 1 , wherein said cover consists of a housing, a muffle, and a valve set.
3. The oil suction pump as claimed in claim 2 , wherein said housing is provided on an inner wall surface of a rear end close to the front end of said air outlet with screw threads.
4. The oil suction pump as claimed in claim 3 , wherein said housing is provided on a circumferential wall with several rows of axially sequentially arranged vents.
5. The oil suction pump as claimed in claim 4 , wherein said housing has a front end having a radially inward projected portion, a center of which is molded into a sleeve seat.
6. The oil suction pump as claimed in claim 5 , wherein said sleeve seat has an inner bore, and a radially inward annular projection formed in said inner bore near an inner end thereof.
7. The oil suction pump as claimed in claim 2 , wherein said valve set includes a base, a compression spring, and a sealing head.
8. The oil suction pump as claimed in claim 7 , wherein said base is provided around an outer circumferential surface with an annular groove.
9. The oil suction pump as claimed in claim 7 , wherein said base is provided at a central area with a bore.
10. The oil suction pump as claimed in claim 7 , wherein said sealing head has a front portion in the form of a cylindrical body, and a long shaft rearward extended from said front portion.
11. The oil suction pump as claimed in claim 10 , wherein said front cylindrical body of said sealing head includes a neck portion and an airtight seal ring mounted on said neck portion.
12. The oil suction pump as claimed in claim 11 , wherein said compression spring of said valve set normally pushes said front portion of said sealing head against a front opening of said air outlet of said oil suction pump, with said airtight seal ring on said neck portion of said sealing head tightly sealing said front opening of said air outlet.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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US11/211,610 US20070048149A1 (en) | 2005-08-26 | 2005-08-26 | Oil suction pump |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/211,610 US20070048149A1 (en) | 2005-08-26 | 2005-08-26 | Oil suction pump |
Publications (1)
Publication Number | Publication Date |
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US20070048149A1 true US20070048149A1 (en) | 2007-03-01 |
Family
ID=37804367
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US11/211,610 Abandoned US20070048149A1 (en) | 2005-08-26 | 2005-08-26 | Oil suction pump |
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US (1) | US20070048149A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20100254838A1 (en) * | 2007-09-28 | 2010-10-07 | Tien-Tsai Tseng | Oil drain and suction pump |
US20180066766A1 (en) * | 2016-09-07 | 2018-03-08 | Chuan Jiing Enterprise Co., Ltd. | Fluid Transfer Device Based on Pneumatic Sucking and Expelling |
CN110107542A (en) * | 2019-04-29 | 2019-08-09 | 中山科普医疗设备有限公司 | Integrated negative pressure suction system |
US11649810B2 (en) * | 2019-12-08 | 2023-05-16 | Esun Tools Mfg. Ltd. | Oil suction pump |
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US2750958A (en) * | 1953-04-27 | 1956-06-19 | Baker Oil Tools Inc | Drill pipe float valve |
US6039073A (en) * | 1999-03-02 | 2000-03-21 | International Valve Corporation | Check valve |
US6357492B1 (en) * | 2001-06-07 | 2002-03-19 | Sgr-Bin Hsu | Liquid changer |
US6558138B2 (en) * | 2001-08-17 | 2003-05-06 | Tien Tsai Tseng | Manual/pneumatic oil-pumping device |
US6736603B2 (en) * | 2002-06-14 | 2004-05-18 | Ching-Tsung Chang | Oil suction pump |
US6763847B2 (en) * | 2002-02-01 | 2004-07-20 | Wuu-Cheau Jou | Airless oil header |
US6814552B2 (en) * | 2002-10-31 | 2004-11-09 | Specialized Bicycle Components, Inc. | Pump capable of releasing excessive air |
-
2005
- 2005-08-26 US US11/211,610 patent/US20070048149A1/en not_active Abandoned
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Publication number | Priority date | Publication date | Assignee | Title |
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US2750958A (en) * | 1953-04-27 | 1956-06-19 | Baker Oil Tools Inc | Drill pipe float valve |
US6039073A (en) * | 1999-03-02 | 2000-03-21 | International Valve Corporation | Check valve |
US6357492B1 (en) * | 2001-06-07 | 2002-03-19 | Sgr-Bin Hsu | Liquid changer |
US6558138B2 (en) * | 2001-08-17 | 2003-05-06 | Tien Tsai Tseng | Manual/pneumatic oil-pumping device |
US6763847B2 (en) * | 2002-02-01 | 2004-07-20 | Wuu-Cheau Jou | Airless oil header |
US6736603B2 (en) * | 2002-06-14 | 2004-05-18 | Ching-Tsung Chang | Oil suction pump |
US6814552B2 (en) * | 2002-10-31 | 2004-11-09 | Specialized Bicycle Components, Inc. | Pump capable of releasing excessive air |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20100254838A1 (en) * | 2007-09-28 | 2010-10-07 | Tien-Tsai Tseng | Oil drain and suction pump |
US8240433B2 (en) * | 2007-09-28 | 2012-08-14 | Chuan Jiing Enterprises Co., Ltd. | Oil drain and suction pump |
US20180066766A1 (en) * | 2016-09-07 | 2018-03-08 | Chuan Jiing Enterprise Co., Ltd. | Fluid Transfer Device Based on Pneumatic Sucking and Expelling |
US10139010B2 (en) * | 2016-09-07 | 2018-11-27 | Chuan Jiing Enterprise Co., Ltd. | Fluid transfer device based on pneumatic sucking and expelling |
CN110107542A (en) * | 2019-04-29 | 2019-08-09 | 中山科普医疗设备有限公司 | Integrated negative pressure suction system |
US11649810B2 (en) * | 2019-12-08 | 2023-05-16 | Esun Tools Mfg. Ltd. | Oil suction pump |
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