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PumpRelated Patent Categories: Pumps, Expansible Chamber Type, Fluid Serially Moved To Opposite Side Of Pumping Member, Control By Movable Rigid Piston Side WallPump description/claimsThe Patent Description & Claims data below is from USPTO Patent Application 20070148023, Pump. Brief Patent Description - Full Patent Description - Patent Application Claims
BACKGROUND OF INVENTION [0001] 1. Field of Invention [0002] The present invention relates to a pump and, more particularly, to a compact pump. [0003] 2. Related Prior Art [0004] Disclosed in Taiwanese Patent M267345 is a conventional pump. This conventional pump includes a cylinder 10 and a handle 30. The handle 30 always extends beyond the cylinder 10 no matter the pump is in use or not. The handle 30 occupies quite some space in addition to what the cylinder 10 occupies. That is, the smallest entire length of the pump is the length of the handle 30 plus that of the cylinder 10. The pump is bulky, and causes inconvenience for a user trying to store it. [0005] The present invention is therefore intended to obviate or at least alleviate the problems encountered in prior art. SUMMARY OF INVENTION [0006] According to the present invention, a pump includes a cylinder, a nozzle connected to an end of the cylinder, a piston positioned in the cylinder, a rod connected to the piston, a ring installed at an opposite end of the cylinder, a connector connected to the rod and a handle for connection to the connector in an active position where the handle extends beyond the cylinder and in an idle position where the handle shields the cylinder. [0007] The primary advantage of the pump of the present invention is that when the pump is not in use, the handle shields the cylinder so that the entire pump occupies a little space, and can conveniently be stored. [0008] Other advantages and features of the present invention will become apparent from the following description referring to the attached drawings. BRIEF DESCRIPTION OF DRAWINGS [0009] The present invention will be described through detailed illustration of two embodiments referring to the drawings. [0010] FIG. 1 is a perspective view of a pump according to the first embodiment of the present invention. [0011] FIG. 2 is an exploded view of the pump shown in FIG. 1. [0012] FIG. 3 is a cross-sectional view of the pump shown in FIG. 1. [0013] FIG. 4 is a cross-sectional view of the pump in another position than shown in FIG. 3. [0014] FIG. 5 is a cross-sectional view of the pump in another position than shown in FIG. 3. [0015] FIG. 6 is a perspective view of the pump shown in FIG. 5. [0016] FIG. 7 is an exploded view of a pump according to the second embodiment of the present invention. [0017] FIG. 8 is a cross-sectional view of the pump shown in FIG. 7. [0018] FIG. 9 is a cross-sectional view of the pump in another position than shown in FIG. 8. DETAILED DESCRIPTION OF EMBODIMENTS [0019] Referring to FIGS. 1 and 2, there is shown a pump according to a first embodiment of the present invention. The pump includes a cylinder 20, a nozzle 25 connected to an end of the cylinder 20, a piston 22 positioned in the cylinder 20, a rod 21 connected to the piston 22, a ring 23 installed at an opposite end of the cylinder 20 in order to retain the piston 22 in the cylinder 20, a connector 24 connected to the rod 21 and a handle 10 connected to the connector 24. [0020] Referring to FIG. 2, the cylinder 20 includes a plurality of grooves 201 on an internal side. The ring 23 includes a corresponding number of ribs 231 on an internal side. The ribs 231 are fit in the grooves 201 in order to firmly attach the ring 23 to the cylinder 20. Continue reading about Pump... Full patent description for Pump Brief Patent Description - Full Patent Description - Patent Application Claims Click on the above for other options relating to this Pump 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 Pump or other areas of interest. ### Previous Patent Application: Peristaltic pump Next Patent Application: Pump Industry Class: Pumps ### FreshPatents.com Support Thank you for viewing the Pump patent info. IP-related news and info Results in 1.1007 seconds Other interesting Feshpatents.com categories: Software: Finance , AI , Databases , Development , Document , Navigation , Error 174 |
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