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  Inflator with inflation and deflation effectsUSPTO Application #: 20060078449Title: Inflator with inflation and deflation effects Abstract: An inflator with inflation and deflation effects. The inflator includes: a cylinder body in which a piston is fitted for compressing the gas in a compression room formed in the cylinder body between the piston and the front end of the cylinder body; a piston rod having an internal gas passage, a front end of the piston rod extending through a rear end of the cylinder body into the cylinder body to connect with the piston, a front end of the gas passage communicating with the compression room; a handle connected with a rear end of the piston rod; a gas passage connector located at the cylinder body end of the inflator; a rear end of the gas passage communicating with outer side through the gas passage connector; a cylinder body connector located at the handle end of the inflator; the compression room communicating with the outer side through the cylinder body connector; a first one-way valve only permitting the gas to one-way flow between the compression room and outer side; a second one-way valve only permitting the gas to one-way flow between outer side, the gas passage and the compression room. Along the longitude of the inflator, the two one-way valves only permit the gas to one-way flow in the same direction. When inflating an object, the object is connected with one of the two connectors; when deflating the object, the object is connected with the other connector. (end of abstract)
Agent: Troxell Law Office PLLC - Falls Church, VA, US Inventor: Chiang Pei Chen USPTO Applicaton #: 20060078449 - Class: 417570000 (USPTO) Related Patent Categories: Pumps, Expansible Chamber Type, Having Pumping Chamber Pressure Responsive Distributor, Distributor Positioned Opposite Pumping Member End Face, Distributor Coextensive With Pumping Member End Face The Patent Description & Claims data below is from USPTO Patent Application 20060078449. Brief Patent Description - Full Patent Description - Patent Application Claims
[0001] This application is a Continuation-in-Part of application Ser. No. 10/950,517, entitled INFLATOR WITH INFLATION AND DEFLATION EFFECTS, filed on Sep. 28, 2004. FIELD OF THE INVENTION [0002] The present invention is related to an inflating device, and more particularly to an inflator with both inflation and deflation effects. The inflator minimizes the possibility of mis-installation when inflating or deflating an object. BACKGROUND OF THE INVENTION [0003] A conventional inflator is used to inflate an object. However, such inflator cannot exhaust the gas from the object. [0004] U.S. Pat. No. 6,250,343 of this applicant discloses an inflator which can inflate an object as well as suck gas out of the object. [0005] FIG. 1 shows the structure of the above Patent, in which a piston 12 is disposed in a cylinder body 10. Via a piston rod 14, the piston 12 can be pushed to compress the gas in the internal space 15 of the cylinder body. An intake one-way valve 16 and an exhaust one-way valve 18 are arranged at front end of the cylinder body 10. The intake one-way valve 16 only permits the gas to flow from outer side into the space 15, while the exhaust one-way valve 18 only permits the gas to be exhausted from the space 14 to outer side. [0006] When inflated, a conducting member 19 is mounted at the exhaust one-way valve 18 as shown in FIG. 1. When the piston 12 is pushed toward the front end of the cylinder body 10, the gas in the space 15 is compressed to flow through the exhaust one-way valve 18 and the conducting member 19 into an object to inflate the same. When the piston is pushed in reverse direction, the ambient atmosphere can flow through the intake one-way valve 16 into the space 14. [0007] When deflating the object, the conducting member 19 is mounted at the intake one-way valve 16 as shown in FIG. 2. When the piston 12 is pushed toward the rear end of the cylinder body 10, the gas in the space 15 is decompressed and the gas in the object flows through the conducting member 19 and the intake one-way valve 16 into space 15. Then the piston is pushed toward the front end of the cylinder body so as to exhaust the gas in the space 15 through the exhaust one-way valve 18 to outer side. [0008] According to the above structure, the inflator has both inflation and deflation functions. However, the intake one-way valve 16 and the exhaust one-way valve 18 are both disposed at front end of the cylinder body 10. It is uneasy for a user to distinguish these two one-way valves 16, 18 from each other. As a result, it often takes place that a user mis-mounts the conducting member at an incorrect one-way valve. SUMMARY OF THE INVENTION [0009] It is therefore a primary object of the present invention to provide an inflator with both inflation and deflation effects. In inflation or deflation operations, the gas flow ways of the inflator are respectively positioned in the cylinder body and the handle of the inflator. Therefore, a user can easily distinguish the two gas flow ways from each other so as to minimize the possibility of mis-installation. [0010] The present invention can be best understood through the following description and accompanying drawings wherein: BRIEF DESCRIPTION OF THE DRAWINGS [0011] FIG. 1 and FIG. 2 are longitudinally sectional views of a prior inflator in operation; [0012] FIG. 3 is a rear perspective view of a preferred embodiment of the present invention, also showing various gas-conducting members co-used with the present invention; [0013] FIG. 4 is a longitudinally sectional view of FIG. 3; [0014] FIGS. 5 and 6 are sectional views according to FIG. 4, showing the inflation operation of the present invention; [0015] FIGS. 7 and 8 are sectional views according to FIG. 4, showing the deflation operation of the present invention; [0016] FIG. 9 is a longitudinally sectional view of another embodiment of the present invention; [0017] FIG. 10 is a longitudinally sectional view of still another embodiment of the present invention; [0018] FIG. 11 is a partial enlarged view of another embodiment according to FIG. 10; [0019] FIG. 12 is a longitudinally sectional view of still another embodiment of the present invention; [0020] FIG. 13 shows the inflation operation according to FIG. 12; Continue reading... Full patent description for Inflator with inflation and deflation effects Brief Patent Description - Full Patent Description - Patent Application Claims Click on the above for other options relating to this Inflator with inflation and deflation effects patent application. ###  How KEYWORD MONITOR works... a FREE service from FreshPatents1. Sign up (takes 30 seconds). 2. Fill in the keywords to be monitored. 3. Each week you receive an email with patent applications related to your keywords. Start now! - Receive info on patent apps like Inflator with inflation and deflation effects or other areas of interest. ### Previous Patent Application: Phacoemulsification machine with post-occlusion surge control system and related method Next Patent Application: Scroll pump with controlled axial thermal expansion Industry Class: Pumps ### FreshPatents.com Support Thank you for viewing the Inflator with inflation and deflation effects patent info. 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