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WO1995031346A1 - Indicateur de pression de pneu - Google Patents

Indicateur de pression de pneu Download PDF

Info

Publication number
WO1995031346A1
WO1995031346A1 PCT/US1994/005443 US9405443W WO9531346A1 WO 1995031346 A1 WO1995031346 A1 WO 1995031346A1 US 9405443 W US9405443 W US 9405443W WO 9531346 A1 WO9531346 A1 WO 9531346A1
Authority
WO
WIPO (PCT)
Prior art keywords
sleeve
marker
lens
indicator
valve
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.)
Ceased
Application number
PCT/US1994/005443
Other languages
English (en)
Inventor
Philip J. Milanovich
Arthur J. Foss
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to PCT/US1994/005443 priority Critical patent/WO1995031346A1/fr
Priority to AU69138/94A priority patent/AU6913894A/en
Publication of WO1995031346A1 publication Critical patent/WO1995031346A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C23/00—Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles; Arrangement of tyre inflating devices on vehicles, e.g. of pumps or of tanks; Tyre cooling arrangements
    • B60C23/02—Signalling devices actuated by tyre pressure
    • B60C23/04—Signalling devices actuated by tyre pressure mounted on the wheel or tyre
    • B60C23/0491—Constructional details of means for attaching the control device
    • B60C23/0496—Valve stem attachments positioned outside of the tyre chamber
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C23/00—Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles; Arrangement of tyre inflating devices on vehicles, e.g. of pumps or of tanks; Tyre cooling arrangements
    • B60C23/02—Signalling devices actuated by tyre pressure

Definitions

  • the motoring public is generally aware of the need to have tires properly inflated for optimum tire life and performance. Under-inflated tires wear more quickly and degrade the handling characteristics of a car. The problem is that the tedium of measuring the pressure in each tire causes many motorists to forego measuring the pressure in the tires and rely on a visual inspection instead. A visual inspection is inadequate, particularly when a car is equipped with radial tires, because a sidewall bulge is present even in properly inflated tires.
  • U.S. Patent 4,606,931 - Achterholt - discloses a valve cap with a pressure drop indicator in which a diaphragm moves a sliding indicator inward through the valve cap.
  • a blade like marking member within the indicator remains extended when the indicator moves inward to show that the pressure has dropped within the tire.
  • the blade is contained within a transparent end cap and must be positioned correctly for someone to see either side of the blade rather than an edge.
  • lens 31 includes skirt 35 lining the inside of sleeve 11 and press-fit or glued to the interior sleeve 11.
  • the end of skirt 35 seals the periphery of diaphragm 25 against the edge of hole 13.
  • Marker 27 fits within skirt 35 as shown.
  • button 33 extends toward diaphragm 25 to make contact with the surface of diaphragm 25 to assure that diaphragm 25 folds correctly upon contraction and to assure that diaphragm 25 is in contact with button 33 at all times.
  • spring 36 Surrounding marker 27 is spring 36 which extends from shoulder 37 on skirt 35 to flange 39 on marker 27. Spring 36 is held in compression between shoulder 37 and flange 39 and opposes the force applied by diaphragm 25.
  • valve stem 43 When valve stem 43 is not pushed downward, chamber 23 is sealed at its upper end by flange 41 of valve stem 43 pressing aqainst gasket 45 due to the force supplied by spring 49.
  • Valve cap 47 is attached to the upper end of sleeve 12, holding gasket 45 and valve stem 43 in place.
  • FIG. 2 illustrates tire pressure indicator 10 showing a low pressure condition.
  • marker 27 When the air pressure within chamber 23 is less than the predetermined amount, then marker 27 is pushed to the right by spring 36. Outer end 32 of marker 27 is withdrawn into sleeve 11, producing a distinctly different image from the lens shown in FIG. 1. For example, if lens 31 is transparent or lightly frosted, the lens has a gray or white appearance. When end 32 is in lens 31, the appearance of the lens is distinctly altered, depending upon the color of end 32. Thus, marker 27 provides a qualitative indication of whether or not the air pressure within a tire is above a predetermined amount.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Measuring Fluid Pressure (AREA)

Abstract

On obtient une indication de la qualité de la pression d'un pneumatique en faisant coulisser un indicateur (27) dans un manchon (11). L'indicateur (27) se déplace dans une chambre formée d'une lentille creuse (31) fermant une extrémité (32) du manchon (11) et d'une membrane (25) placée dans le manchon (11). Un ressort (36) pousse l'indicateur (27) vers la membrane (25) et la pression de l'air provenant du pneu est appliquée sur le côté opposé de la membrane à partir de l'indicateur (27). Une pression supérieure à une quantité prédéterminée est indiquée par l'extrémité (32) de l'indicateur (27) remplissant pratiquement la lentille creuse (31), et une pression inférieure à la quantité prédéterminée est indiquée par l'extrémité (32) de l'indicateur (27) se rétractant dans le manchon (11).
PCT/US1994/005443 1994-05-13 1994-05-13 Indicateur de pression de pneu Ceased WO1995031346A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/US1994/005443 WO1995031346A1 (fr) 1994-05-13 1994-05-13 Indicateur de pression de pneu
AU69138/94A AU6913894A (en) 1994-05-13 1994-05-13 Tire pressure indicator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US1994/005443 WO1995031346A1 (fr) 1994-05-13 1994-05-13 Indicateur de pression de pneu

Publications (1)

Publication Number Publication Date
WO1995031346A1 true WO1995031346A1 (fr) 1995-11-23

Family

ID=22242568

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1994/005443 Ceased WO1995031346A1 (fr) 1994-05-13 1994-05-13 Indicateur de pression de pneu

Country Status (2)

Country Link
AU (1) AU6913894A (fr)
WO (1) WO1995031346A1 (fr)

Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1450769A (en) * 1922-04-17 1923-04-03 Raymond A Crosby Tire-deflation signal
US2417449A (en) * 1945-03-21 1947-03-18 Rubin Paul Tire inflation indicator valve cap
US2704045A (en) * 1953-01-09 1955-03-15 Gen Motors Corp Pressure indicating device
DE1042406B (de) * 1957-08-20 1958-10-30 Walter Gfoell Ventilkappe fuer Luftbereifungen von Fahrzeugen, insbesondere von Kraftfahrzeugen
US2903888A (en) * 1958-08-16 1959-09-15 Gfoll Walter Pressure gage attachment for tire valve stems
US3276417A (en) * 1965-08-11 1966-10-04 Louis C Flowers Pressure indicating apparatus for a pneumatic tire
US3380427A (en) * 1966-05-10 1968-04-30 Rubin Paul Direct mounting tire gage
US3492968A (en) * 1968-07-08 1970-02-03 Gardner Denver Co Fluid actuated visual indicator
US3799037A (en) * 1972-03-14 1974-03-26 H Schmidt Valve attachment
US4520664A (en) * 1983-05-26 1985-06-04 Robert Kramer Tire pressure indicator
US4606391A (en) * 1983-10-28 1986-08-19 Rainer Achterholt Valve cap with pressure drop indication for pneumatic tires
US4708169A (en) * 1986-11-13 1987-11-24 Jackson Liu Pneumatic pressure gauge
US5007365A (en) * 1990-01-17 1991-04-16 Hwang Feng Lin Air-leak indicator for vehicle tire
US5025244A (en) * 1989-09-14 1991-06-18 Huang Tien Tsai Tire pressure indicator
US5027740A (en) * 1990-01-19 1991-07-02 Robert Kramer Valve cap pressure drop indicator

Patent Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1450769A (en) * 1922-04-17 1923-04-03 Raymond A Crosby Tire-deflation signal
US2417449A (en) * 1945-03-21 1947-03-18 Rubin Paul Tire inflation indicator valve cap
US2704045A (en) * 1953-01-09 1955-03-15 Gen Motors Corp Pressure indicating device
DE1042406B (de) * 1957-08-20 1958-10-30 Walter Gfoell Ventilkappe fuer Luftbereifungen von Fahrzeugen, insbesondere von Kraftfahrzeugen
US2903888A (en) * 1958-08-16 1959-09-15 Gfoll Walter Pressure gage attachment for tire valve stems
US3276417A (en) * 1965-08-11 1966-10-04 Louis C Flowers Pressure indicating apparatus for a pneumatic tire
US3380427A (en) * 1966-05-10 1968-04-30 Rubin Paul Direct mounting tire gage
US3492968A (en) * 1968-07-08 1970-02-03 Gardner Denver Co Fluid actuated visual indicator
US3799037A (en) * 1972-03-14 1974-03-26 H Schmidt Valve attachment
US4520664A (en) * 1983-05-26 1985-06-04 Robert Kramer Tire pressure indicator
US4606391A (en) * 1983-10-28 1986-08-19 Rainer Achterholt Valve cap with pressure drop indication for pneumatic tires
US4708169A (en) * 1986-11-13 1987-11-24 Jackson Liu Pneumatic pressure gauge
US5025244A (en) * 1989-09-14 1991-06-18 Huang Tien Tsai Tire pressure indicator
US5007365A (en) * 1990-01-17 1991-04-16 Hwang Feng Lin Air-leak indicator for vehicle tire
US5027740A (en) * 1990-01-19 1991-07-02 Robert Kramer Valve cap pressure drop indicator

Also Published As

Publication number Publication date
AU6913894A (en) 1995-12-05

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