EP2356337A1 - Hand-actuated air pump - Google Patents
Hand-actuated air pumpInfo
- Publication number
- EP2356337A1 EP2356337A1 EP09792756A EP09792756A EP2356337A1 EP 2356337 A1 EP2356337 A1 EP 2356337A1 EP 09792756 A EP09792756 A EP 09792756A EP 09792756 A EP09792756 A EP 09792756A EP 2356337 A1 EP2356337 A1 EP 2356337A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- piston
- hand
- cylinder
- actuated pump
- distal end
- 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.)
- Withdrawn
Links
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
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C27/00—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas
- A47C27/08—Fluid mattresses or cushions
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
- F16K15/20—Check valves specially designed for inflatable bodies, e.g. tyres
Definitions
- the present invention relates generally to pumps. More specifically, the present invention relates to a hand-actuated pump for filling an inflatable object.
- Inflatable mattresses have become popular due to their utility as an extra bed needed around the house or on camping trips.
- An advantage of such inflatable mattresses is that they are portable and easily stored.
- a pump is typically required to fill these mattresses quickly and efficiently.
- a battery operated or corded pump may be provided with the mattress and adapted to fill the mattress with air.
- An embodiment of a hand-actuated pump includes a cylinder with a proximal end and a distal end. The distal end defines an opening.
- the hand- actuated pump also includes a piston with a proximal end.
- the proximal end of the piston is configured to be slidably inserted into the distal end of the cylinder.
- An exhaust port is positioned at the proximal end of the cylinder and configured to be removably attached to an inflatable object and to communicate air to the inflatable object.
- At least one valve is positioned at the distal end of the piston.
- FIG. 1a and Fig. 1 b are perspective views of one embodiment of a hand-actuated pump in an extended position
- FIG. 2 is a perspective view of the hand-actuated pump embodiment of
- Fig. 1a in a closed position
- FIGs. 3a-3c are views of the exhaust port of the hand-actuated pump embodiment of Fig. 1a;
- Fig. 4a is a view of the valve cover of the embodiment of Fig. 1a from the outside of the piston;
- Fig. 4b is a view of the valve cover of the embodiment of Fig. 1a from the inside of the piston;
- Fig. 5a and Fig. 5b illustrate an unpacking operation of the embodiment of the hand-actuated pump in Fig. 1a;
- FIG. 6a - Fig. 6c illustrate a pumping operation of an embodiment of a hand-actuated pump as shown in Fig. 1a.
- Fig. 1a and Fig. 1 b are perspective views of a hand-actuated pump 100 in an extended position.
- the hand-actuated pump 100 includes a cylinder 105 and a piston 107 configured to be fully inserted into the cylinder 105, as shown in Fig. 2
- the repetitive insertion and removal of the piston 107 enables the inflation of an inflatable object, such as a flexible inflatable support.
- the cylinder 105 and piston 107 are generally cylindrical in shape and define an inner chamber. However, other geometries may be utilized.
- the cylinder 105 and piston 107 may comprise any material suitable to enable pumping operations, such as plastic, metal, or a different material.
- the distal end 107a of the piston 107 defines a handle 125 that enables pulling the piston 107 out of the cylinder 105.
- a pair of valves 400 enabling air to be drawn into the pump 100 are positioned at the distal end 107a of the piston 107.
- the number of valves 400 may be increased or decreased depending on the amount of air flow desired. The valves 400 are described in more detail below.
- the inside diameter of the cylinder 105 and the outside diameter of the piston 107 are sized to allow the piston 107 to slide inside the cylinder 105 and to form a substantially air tight seal between the piston 107 and the cylinder 105.
- the piston 107 may define a raised annular ridge, hereinafter referred to as a ring 310, on the outside surface towards the proximal end of the piston, as shown in Fig. 3a.
- the ring 310 may further improve the seal between the piston 107 and cylinder 105.
- the cylinder 105 may define one or more raised annular ridges, hereinafter referred to as rumble strips 112, at the distal end 105b.
- the rumble strips 112 are configured to engage the ring 310 (Fig. 3) defined on the piston 107.
- the rumble strips 112 and ring 310 cooperate to produce noise when the ring 310 is drawn across the rumble strips 112.
- the noise in turn warns an operator that the piston 107 is near the end of its operative position.
- the number of rumble strips 112 may be increased or decreased to increase or decrease the intensity of the warning provided to the operator.
- the cylinder 105 may define a raised annular ridge 114 at the distal end 105b with an interior surface (not shown) configured to engage the ring 310 and generally prevent the piston 107 from being completely removed from the cylinder 105 during pumping operations.
- the proximal end 105a of the cylinder 105 defines an exhaust port 115.
- the exhaust port 115 enables attachment of the hand-actuated pump to an inflatable object such as an air mattress.
- the exhaust port 115 is utilized to communicate air to the inflatable object and may be integrally formed with the cylinder 105 or may be removably attached. For example, the exhaust port 115 may be glued, welded, or screwed to the cylinder 105.
- Figs. 3a and 3b are cross-sectional views of the exhaust port 115 (Fig. 1 b).
- the exhaust port 115 includes a coupler 300 and a cover 315.
- the coupler is generally cylindrical and is configured to move within an opening defined in the proximal end 105a of the cylinder 105.
- the coupler 300 may include locking members 305 that enable removable attachment of the hand-actuated pump 100 to an inflatable support.
- the hand-actuated pump 100 may be locked to the inflatable object by sliding the coupler inside a complementary port (not shown) on the inflatable object.
- the coupler 300 may then be rotated so that the locking members 305 engage complementary locking members (not shown) on the inflatable object.
- the hand-actuated pump 100 may be removed by reversing the direction of rotation of the coupler 300. Locking the hand-actuated pump 100 to the inflatable object enables an operator to concentrate his efforts on filling the inflatable object with air rather than trying to forcibly keep the hand-actuated pump 100 and inflatable object together.
- the cover 315 is configured to be inserted into an opening of the coupler and may prevent objects from entering the hand-actuated pump when not in use.
- the cover 315 includes a tail 315a configured to be inserted into the retention tab 320 located on the proximal end 105a of the cylinder 105.
- the retention tab 320 defines an opening for receiving the tail 315a of the cover 315.
- Fig. 4a and Fig. 4b are front and back views, respectively, of the valves 400.
- the valves 400 enable unidirectional flow of air into the piston during pumping operations. When the piston and cylinder are pulled apart, the valves 400 allow air to enter the inner chamber defined by the piston 107 and cylinder 105. When the piston 107 and cylinder 105 are pushed together, the valves 400 close. This forces air through the exhaust port 115.
- two valves are utilized. However, the number of valves may be increased to increase air flow into the chamber or decreased to save space and reduce costs. Placement of the valves on the distal end of the piston provides for the decreased resistance of air flowing into the hand-actuated pump when the piston is drawn out of the cylinder. This in turn leads to reduced fatigue on the part of the operator.
- Each valve 400 includes a valve membrane 405, a bridge support 410, and a valve grill 415.
- the bridge support 410 is utilized to secure the valve membrane 405 over an opening in the distal end 107a of the piston 107.
- the valve membrane 405 is circular and has a diameter that is approximately the same size as the diameter of the opening.
- the shape of the valve membrane 405 may be adapted to cover a valve opening with a different shape.
- the valve membrane 405 may comprise any material suitably flexible, yet impermeable to air flow, such as rubber, to allow unidirectional flow of air.
- the valve grill 415 is configured to prevent objects that may obstruct air flow and/or damage the chamber defined by the cylinder 105 and piston 107 from entering through the valve.
- the valve grill includes tabs or snaps 415a which enable removable attachment of the grill to the distal end 107a of the piston 107.
- Fig. 5a and Fig. 5b show an unpacking operation of the hand-actuated pump 100.
- An inflatable object 500 may be stored in the hand-actuated pump 100.
- the operator may remove the piston 107 from the cylinder 105 as shown in Fig. 5b.
- the inflatable object 500 may then be removed from the piston 107.
- Fig. 6a - Fig. 6c illustrate a pumping operation of the hand-actuated pump 100.
- the operator may attach the coupler 300 (Fig. 3b) at the exhaust port 115 (Fig. 1 ) of the hand-actuated pump to a complementary coupler (not shown) on the inflatable object 500.
- the operator may then lock the hand- actuated pump 100 to the inflatable object 500 by rotating the coupler 300 until the locking members 305 (Fig. 3) engage a set of complementary locking members (not shown) on the coupler of the inflatable object 500.
- the operator may then place his hand through the handle 125 and initiate pumping operations to inflate the inflatable object 500.
- a rumble may be heard and felt by the operator. This in turn indicates to the operator that the piston is near the end of its operative pumping range.
- the operator may remove the hand-actuated pump 100 by performing the reverse of the operations described above and then closing the valve on the inflatable object 500, as shown in Fig. 6c.
- the exhaust cover may be attached to the piston, and the valve cover may be attached to the cylinder.
- a strap and/or handle may or may not be utilized.
- the number of valves may be greater or fewer than two.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
- Reciprocating Pumps (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US9894008P | 2008-09-22 | 2008-09-22 | |
PCT/US2009/057626 WO2010033891A1 (en) | 2008-09-22 | 2009-09-21 | Hand-actuated air pump |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2356337A1 true EP2356337A1 (en) | 2011-08-17 |
Family
ID=41611092
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09792756A Withdrawn EP2356337A1 (en) | 2008-09-22 | 2009-09-21 | Hand-actuated air pump |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP2356337A1 (en) |
KR (1) | KR20110083629A (en) |
CN (1) | CN102239332A (en) |
AU (1) | AU2009293032A1 (en) |
CA (1) | CA2738112A1 (en) |
WO (1) | WO2010033891A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10443588B2 (en) * | 2017-09-12 | 2019-10-15 | Bell Sports, Inc. | Mini pump with integrated valve core tool |
CN111643910A (en) * | 2020-04-22 | 2020-09-11 | 怀化学院 | Portable handheld toy with pressure relieving effect |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1412279A (en) * | 1920-12-13 | 1922-04-11 | Tornado Auto Pump Company | Pump |
US1491388A (en) * | 1923-05-11 | 1924-04-22 | Edwin E Foster | Air pump |
US2573375A (en) * | 1946-03-25 | 1951-10-30 | Thomas W Winstead | Pump container |
US2741360A (en) * | 1953-11-06 | 1956-04-10 | Ideal Toy Corp | Container for packaging and inflating pneumatic articles |
US2908109A (en) * | 1956-07-18 | 1959-10-13 | Packard Container Corp | Air pumps and valves therefor |
DE1703474A1 (en) * | 1967-05-29 | 1972-02-03 | Stiga Verken Ab | Double-acting piston pump for gaseous or liquid media |
US5291625A (en) * | 1993-08-02 | 1994-03-08 | Leslie Philip L | Body support pads and mattresses |
US5762095A (en) * | 1996-04-22 | 1998-06-09 | Schwinn Cycling & Fitness Inc. | Combination pump head |
-
2009
- 2009-09-21 EP EP09792756A patent/EP2356337A1/en not_active Withdrawn
- 2009-09-21 AU AU2009293032A patent/AU2009293032A1/en not_active Abandoned
- 2009-09-21 KR KR1020117009078A patent/KR20110083629A/en not_active Application Discontinuation
- 2009-09-21 WO PCT/US2009/057626 patent/WO2010033891A1/en active Application Filing
- 2009-09-21 CN CN2009801403793A patent/CN102239332A/en active Pending
- 2009-09-21 CA CA2738112A patent/CA2738112A1/en not_active Abandoned
Non-Patent Citations (1)
Title |
---|
See references of WO2010033891A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO2010033891A1 (en) | 2010-03-25 |
CA2738112A1 (en) | 2010-03-25 |
CN102239332A (en) | 2011-11-09 |
KR20110083629A (en) | 2011-07-20 |
AU2009293032A1 (en) | 2010-03-25 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20110329 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR |
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RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: JINDAL, SARAH Inventor name: SANDERS, ANTHONY Inventor name: LUC, SAM |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: THE COLEMAN COMPANY, INC. |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: SANDERS, ANTHONY Inventor name: LAM, LUC Inventor name: JINDAL, SARAH |
|
DAX | Request for extension of the european patent (deleted) | ||
17Q | First examination report despatched |
Effective date: 20120308 |
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GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
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STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 20130103 |