US3224264A - Pressure indicating device - Google Patents

Pressure indicating device Download PDF

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Publication number
US3224264A
US3224264A US284591A US28459163A US3224264A US 3224264 A US3224264 A US 3224264A US 284591 A US284591 A US 284591A US 28459163 A US28459163 A US 28459163A US 3224264 A US3224264 A US 3224264A
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US
United States
Prior art keywords
cylindrical wall
diameter
hollow body
pressure
cavity
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.)
Expired - Lifetime
Application number
US284591A
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English (en)
Inventor
Becciani Renato
Valtorta Luigi
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Individual
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Individual
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Filing date
Publication date
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Publication of US3224264A publication Critical patent/US3224264A/en
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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
    • B60C29/00—Arrangements of tyre-inflating valves to tyres or rims; Accessories for tyre-inflating valves, not otherwise provided for
    • B60C29/06—Accessories for tyre-inflating valves, e.g. housings, guards, covers for valve caps, locks, not otherwise provided for

Definitions

  • the present invention relates to a pressure indicating device, which is particularly adapted to be attached directly to tire valves of vehicles in general, and serve also as a closing cap of such valves.
  • An object of the present invention is to provide a pressure indicating device of the described kind, which will be reliable in operation, of simple but durable construction and of low cost.
  • FIG. 2 is a perspective View of the pressure indicator shown in FIG. 1.
  • FIG. 3 is a perspective view of a bell shaped indicating member
  • the sleeve member is provided with a screw thread 17 adapted to be screwed on the tire valve (not shown in the drawing).
  • said inner flangelike upper portion 13 of the sleeve member 14 is bent inwardly to form an inner flange portion provided on the lower surface thereof, with an annular groove 18 in which there is pressed the deformable material of said elastic diaphragm 12 wound around the inner flange portion 13.
  • recess 25 is provided in order to increase the surface exposed to the pressure of the tire and consequently the lifting force acting on the top wall 24 when the latter is in contact with the end 13 of the sleeve member in opposition to the elastic action of the spring 26.
  • the sleeve portion 14 is adapted to receive in a stable and fluid tight manner a metallic bush 14a having an inner thread 17 to be screwed on the tire valve. Furthermore, against the 3 annular abutment 19 defined by the end of the diaphragm 12 and the inner flange 13 of the bush 14a, a flange 28a. of a bush member 28 forced in an air tight manner into the aperture 12a of the flexible diaphragm 12 is pressed, said bush member 28 being provided with an axial hole 28!) providing communication 22 between chamber 22 and the inside 23 of the bush 14a.
  • annular gasket element 20a is arranged to accomplish a sealing contact between the tire valve stem and the bush member 28, the lower surface of said annular gasket 20a lying in a plane which is parallel and axially downwardly projecting with respect to the lower end surface of said bush member 28.
  • cavities 7 and 27 and the outside atmosphere may be provided in a similar manner as described with reference to the embodiment of FIGS. 1-3.
  • this second embodiment of the pressure gauge is substantially as above disclosed with reference to the first embodiment.
  • the only difierence consists in the fact that by screwing the outer hollow body 1 through the thread 17 of the bush 14 on a tire valve terminal, firstly the annular gasket element 20a contacts the annular end edge of the tire valve stem so that a fluid tight contact is achieved and subsequently by further screwing the bush member 28a compresses the gasket 20a and presses down the core of the tire valve causing escape of compressed air from the tire within the chamber 22 of the flexible diaphragm 12.
  • a pressure indicating device comprising a hollow body having a closed top part and a bottom part, an opening in said bottom part, a substantially cylindrical wall on said bottom part and surrounding said opening, said cylindrical wall having a diameter smaller than the diameter of the cavity of said hollow body, said cylindrical wall projecting from said bottom within the cavity of said hollow body, at a distance from the top part thereof, a bag-like bellows member of flexible material and having a neck portion of reduced diameter projecting from the body portion of said bellows member having a diameter substantially greater than the diameter of said neck portion, said neck portion fitting within the interior of the top portion of said cylindrical wall, means for fixing said neck portion to the inside of the top portion of said cylindrical wall, a bell member above said cylindrical wall and riding on said bellows member, said bell member being movable within the interior of said hollow body, spring means biasing said bell member towards said cylindrical wall, indication markings on the outer surface of said bell member and window means on the outer wall of said hollow body for allowing vision of said indication marklngs.
  • a pressure indicating device comprising a hollow body having a closed top part and a bottom part, means defining an opening in said bottom part, a substantially cylindrical wall on said bottom part and surrounding said opening, said cylindrical wall having a diameter smaller than the diameter of the cavity of said hollow body, said cylindrical wall projecting from said bottom within the cavity of said hollow body at a distance from the top part thereof, a bag-like bellows member of flexible material and having a neck portion of reduced diameter projecting from the body portion of said bellows member having a diameter substantially greater than the diameter of said neck portion, said neck portion fitting within the interior of the top portion of said cylindrical wall, means for fixing said neck portion to the inside of the top portion of said cylindrical wall, a bell member above said cylindrical wall and riding on said bellows member, said bell member being movable within the interior of said hollow body, a portion of said bag-like bellows member near the neck portion thereof riding on the top portion of said cylindrical wall and extending therefrom towards the inner surface of said bell member, said bellows member having a plate

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Measuring Fluid Pressure (AREA)
US284591A 1962-06-20 1963-05-31 Pressure indicating device Expired - Lifetime US3224264A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT1204962 1962-06-20
CH644364A CH425273A (de) 1962-06-20 1964-05-16 Druckanzeigende Kappe für Luftreifenventile

Publications (1)

Publication Number Publication Date
US3224264A true US3224264A (en) 1965-12-21

Family

ID=25699577

Family Applications (1)

Application Number Title Priority Date Filing Date
US284591A Expired - Lifetime US3224264A (en) 1962-06-20 1963-05-31 Pressure indicating device

Country Status (4)

Country Link
US (1) US3224264A (xx)
BE (1) BE691397A (xx)
CH (1) CH425273A (xx)
GB (1) GB1041663A (xx)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3523451A (en) * 1967-09-05 1970-08-11 Theodore Kohn Pressure gauge
US3556044A (en) * 1969-04-15 1971-01-19 Robertshaw Controls Co Indicating means
JPS4726757Y1 (xx) * 1970-11-27 1972-08-17
US3720224A (en) * 1970-12-18 1973-03-13 Joco Inc Tire pressure indicator and inflation device
US3780693A (en) * 1972-05-15 1973-12-25 E Parr Visible fluid pressure indicator
US3916817A (en) * 1973-02-22 1975-11-04 Gen Motors Corp Pressure responsive visual warning devices
US4090466A (en) * 1977-04-18 1978-05-23 Stephen Jubinski Gas economizer
WO1996011813A1 (de) * 1994-10-13 1996-04-25 Hans Steiner Druckabnahme-anzeigevorrichtung

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2238125A (en) * 1990-01-17 1991-05-22 Hwang Feng Lin Pressure gauge
GB2320091A (en) * 1996-12-04 1998-06-10 Connor Edward O Combined dustcap and air pressure gauge

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1494001A (en) * 1922-02-01 1924-05-13 Paul L Mitchell Combined dust cap and tire gauge
US1633145A (en) * 1924-07-05 1927-06-21 Schraders Son Inc Gauge
US1807752A (en) * 1931-06-02 poster
US1946224A (en) * 1928-06-20 1934-02-06 Mastrangel Louis Tire gauge
US2225675A (en) * 1938-12-02 1940-12-24 William S West Combination valve cap and tire gauge device
US2704045A (en) * 1953-01-09 1955-03-15 Gen Motors Corp Pressure indicating device
US2948256A (en) * 1957-09-16 1960-08-09 Leonard L Tapp Tire pressure indicator

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1807752A (en) * 1931-06-02 poster
US1494001A (en) * 1922-02-01 1924-05-13 Paul L Mitchell Combined dust cap and tire gauge
US1633145A (en) * 1924-07-05 1927-06-21 Schraders Son Inc Gauge
US1946224A (en) * 1928-06-20 1934-02-06 Mastrangel Louis Tire gauge
US2225675A (en) * 1938-12-02 1940-12-24 William S West Combination valve cap and tire gauge device
US2704045A (en) * 1953-01-09 1955-03-15 Gen Motors Corp Pressure indicating device
US2948256A (en) * 1957-09-16 1960-08-09 Leonard L Tapp Tire pressure indicator

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3523451A (en) * 1967-09-05 1970-08-11 Theodore Kohn Pressure gauge
US3556044A (en) * 1969-04-15 1971-01-19 Robertshaw Controls Co Indicating means
JPS4726757Y1 (xx) * 1970-11-27 1972-08-17
US3720224A (en) * 1970-12-18 1973-03-13 Joco Inc Tire pressure indicator and inflation device
US3780693A (en) * 1972-05-15 1973-12-25 E Parr Visible fluid pressure indicator
US3916817A (en) * 1973-02-22 1975-11-04 Gen Motors Corp Pressure responsive visual warning devices
US4090466A (en) * 1977-04-18 1978-05-23 Stephen Jubinski Gas economizer
WO1996011813A1 (de) * 1994-10-13 1996-04-25 Hans Steiner Druckabnahme-anzeigevorrichtung

Also Published As

Publication number Publication date
GB1041663A (en) 1966-09-07
BE691397A (xx) 1967-05-29
CH425273A (de) 1966-11-30

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