WO2014005725A4 - Air pump - Google Patents

Air pump Download PDF

Info

Publication number
WO2014005725A4
WO2014005725A4 PCT/EP2013/002007 EP2013002007W WO2014005725A4 WO 2014005725 A4 WO2014005725 A4 WO 2014005725A4 EP 2013002007 W EP2013002007 W EP 2013002007W WO 2014005725 A4 WO2014005725 A4 WO 2014005725A4
Authority
WO
WIPO (PCT)
Prior art keywords
hose
chamber
cross
pressurized
piston
Prior art date
Application number
PCT/EP2013/002007
Other languages
French (fr)
Other versions
WO2014005725A1 (en
Inventor
Nicolaas Van Der Blom
Original Assignee
Sipho Pumps Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sipho Pumps Ltd filed Critical Sipho Pumps Ltd
Priority to CA2917347A priority Critical patent/CA2917347A1/en
Priority to SG11201501686XA priority patent/SG11201501686XA/en
Priority to CN201380046218.4A priority patent/CN104781552B/en
Priority to BR112015000254A priority patent/BR112015000254A2/en
Publication of WO2014005725A1 publication Critical patent/WO2014005725A1/en
Publication of WO2014005725A4 publication Critical patent/WO2014005725A4/en
Priority to PH12015500264A priority patent/PH12015500264A1/en

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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
  • Reciprocating Pumps (AREA)

Abstract

Air pump for inflating small objects such as a bicycle tyre comprises an elongate chamber (80) and a piston (73) slidable in said chamber between a first position and a second position, said chamber having cross-sections of different cross-sectional areas and differing circumferential lengths at the first and second positions, and at least substantially continuously different cross-sectional areas and circumferential lengths at intermediate positions between the first and second positions, the cross-sectional area and circumferential length at said second position being smaller than the cross-sectional area and circumferential length at said first position. Said air pump further comprises a hose (118) communicating the air pump exit valve with a valve on the object to be inflated. The hose comprises an expansion chamber (123) which permits variation of the volume inside the hose.

Claims

AMENDED CLAIMS
received by the International Bureau on 10 February 2014 (10.02.2014)
1 . A hose for a piston-chamber combination communicating at one end
5" with an object to be inflated, at the other end with a chamber,
said chamber is comprising an elongate chamber which is bounded by an inner chamber wall, and comprising a piston in said chamber to be engagingly movable relative to said chamber wall at least between a first position and a second position of the chamber.
said chamber having cross-sections of different cross-sect ional areas and differing / 0 circumferential lengths at the first and second longitudinal positions, and at least substantially continuously different cross-sectional areas at intermediate longitudinal positions between the first and second longitudinal positions, the cross-sectional area at said second longi tudinal position being smaller than the cross-sectional area at said first longitudinal position.
between or including said chamber and said hose is comprising an exit valve, which is 15 communicating with a valve between the other end of said hose and an object to be inflated, characterized by the tact that
the size of the internal volume of said hose between said valves is variable by expanding the diameter of its transversal cross-sectional area of said hose, when pressurized. 0 2. A hose according to claim 1 , wherein said piston is scalingly movable,
3. A hose according to claim lor 2. wherein the internal volume of said hose is zero when unpressurized, and >0 when pressurized. <f 4. A hose according to claim 1 - 3, wherein said change is initialed from a certain predestinated pressure inside said hose.
5. A hose according to claim 1 - 4. wherein the expansion of the diameter is takes place on a part of the length of the hose.
6 A hose according to claim 5.. wherein said hose is comprising an inflatable container, which expand when pressurized, and which implode when depressurizcd.
7. A hose according to claim 6, wherein the form of said container is an ellipsoide, when " pressurized, and a. cylinder whe depressurized. 8. A hose according to claim 7, wherein the wall of said container is comprising a layer with reinlOrforcement strengths which iy parallel to the centre axis of the hose.
9. A hose according to claini 7 or 8, further comprising means for for
" limiting the expansion, wherein said container is comprising a stopper for its expansion.

Statement PCT Art 1 b amendments

This patent application is concerning a hose, which is related to a piston-chamber combination, and no an air pump, as suggested by tire Examiner. Which is why the preamble of the claims wording is "Λ hose for a piston-chamber combination..

1 . By combining originally filed claims 1 and 2 into a new claim I . has the objection PCT ISR been overcome - the circumference has been taken out of the prc-amble.

2. The addition "..by expanding the diameter of the transversal cross-sectional area of said Hose, when pressurized" has the prior art been overcome.

Additionally has it overcome an existing water hose, which is partly imploding, and at the same time enlarging its length, when pressurized.

PCT/EP2013/002007 2012-07-06 2013-07-08 Air pump WO2014005725A1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
CA2917347A CA2917347A1 (en) 2012-07-06 2013-07-08 Hose for a piston-chamber combination
SG11201501686XA SG11201501686XA (en) 2012-07-06 2013-07-08 Air pump
CN201380046218.4A CN104781552B (en) 2012-07-06 2013-07-08 Flexible pipe used for piston chamber combination
BR112015000254A BR112015000254A2 (en) 2012-07-06 2013-07-08 piston-chamber combination
PH12015500264A PH12015500264A1 (en) 2012-07-06 2015-02-06 Hose for piston-chamber combination

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ID20120053 2012-07-06
IDP-00201200538 2012-07-06

Publications (2)

Publication Number Publication Date
WO2014005725A1 WO2014005725A1 (en) 2014-01-09
WO2014005725A4 true WO2014005725A4 (en) 2014-04-03

Family

ID=49881371

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2013/002007 WO2014005725A1 (en) 2012-07-06 2013-07-08 Air pump

Country Status (6)

Country Link
CN (1) CN104781552B (en)
BR (1) BR112015000254A2 (en)
CA (1) CA2917347A1 (en)
PH (1) PH12015500264A1 (en)
SG (1) SG11201501686XA (en)
WO (1) WO2014005725A1 (en)

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3981625A (en) * 1974-02-22 1976-09-21 Dahltron Corporation Pump with gauge means
GB2057291A (en) * 1979-08-31 1981-04-01 Hackett W J Safety pipette filler
GB2132282B (en) * 1982-12-18 1986-02-05 Ford Motor Co Hand operated inflator
JPH0833332B2 (en) * 1988-08-22 1996-03-29 株式会社ニッショー Liquid pressure detection mechanism
FR2756357B1 (en) * 1996-11-26 1998-12-24 Souard Olivier SPARE WHEEL INFLATOR
CN2366580Y (en) * 1999-01-25 2000-03-01 邱吉均 Portable type pressed air storage type air pump
WO2000065235A1 (en) 1999-04-22 2000-11-02 Nvb International A device comprising a combination of a chamber and a piston
MXPA03008786A (en) 2001-03-27 2004-07-30 Nvb Int As A combination of a chamber and a piston, a pump, a motor, a shock absorber and a transducer incorporating the combination.
EP2035705A2 (en) 2006-06-07 2009-03-18 NVB International LTD A piston-chamber combination
US8109745B2 (en) * 2009-01-21 2012-02-07 Scott Wu Floor pump
EP2454484A2 (en) * 2009-06-30 2012-05-23 NVB International UK Ltd Measuring and reading the size of a parameter of a remotely positioned device
TWI422743B (en) * 2010-04-19 2014-01-11 Ying Che Huang Pump structure

Also Published As

Publication number Publication date
BR112015000254A2 (en) 2017-06-27
CN104781552B (en) 2017-04-26
PH12015500264A1 (en) 2015-03-30
CN104781552A (en) 2015-07-15
CA2917347A1 (en) 2014-01-09
WO2014005725A1 (en) 2014-01-09
SG11201501686XA (en) 2015-05-28

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