US1258079A - Safety-valve for pneumatic tires. - Google Patents

Safety-valve for pneumatic tires. Download PDF

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Publication number
US1258079A
US1258079A US1914819611A US1258079A US 1258079 A US1258079 A US 1258079A US 1914819611 A US1914819611 A US 1914819611A US 1258079 A US1258079 A US 1258079A
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United States
Prior art keywords
valve
safety
tire
chamber
stem
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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
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William J Young
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Individual
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Individual
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Priority to US1914819611 priority Critical patent/US1258079A/en
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Publication of US1258079A publication Critical patent/US1258079A/en
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Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B9/00—Component parts for respiratory or breathing apparatus
    • A62B9/02—Valves
    • 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
    • F16K15/02—Check valves with guided rigid valve members
    • F16K15/025—Check valves with guided rigid valve members the valve being loaded by a spring
    • 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
    • F16K15/02—Check valves with guided rigid valve members
    • F16K15/06—Check valves with guided rigid valve members with guided stems
    • F16K15/063—Check valves with guided rigid valve members with guided stems the valve being loaded by a spring
    • F16K15/066—Check valves with guided rigid valve members with guided stems the valve being loaded by a spring with a plurality of valve members
    • 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
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
    • F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/3584—Inflatable article [e.g., tire filling chuck and/or stem]
    • Y10T137/3709—Stem attached relief valve
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7837—Direct response valves [i.e., check valve type]
    • Y10T137/7838—Plural
    • Y10T137/7841—One valve carries head and seat for second valve
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7837—Direct response valves [i.e., check valve type]
    • Y10T137/7904—Reciprocating valves
    • Y10T137/7922—Spring biased
    • Y10T137/7929—Spring coaxial with valve

Definitions

  • This invention relates to safety valves for pneumatic tires which are designed to relieve the pressure within the tire when the latter exceeds a redetermined amount, and it has for its o ject to provide a novel safety valve of this type, all as will be more fully hereinafter described and then pointed out in the appended claim.
  • valve stem 1 designates the ordinary valve stem of a pneumatic tire having the usual valve 2 therein provided with a valve stem 3, said valve being normally seated by the spring 4.
  • a member 5 which is adapted to be screwed to the screw-threaded end 6 of the valve stem 1, said member having at its inner end a guiding head 7 which lits over the valve stem and which coperates with the screw-threaded portion to hold the member 5 rmly in place.
  • This member 5 is provided with an outer chamber 8 which communicates with the bore of the valve stem 1 through a passageway 9 and this passageway is normally closed by a balanced safety valve 10 which is held a ainst aseat 11 by means of a spring 12.
  • T e spring is shown as backed against an adjustable plate 13 that is screw-threaded into the chamber 8 and by means of which the tension of the spring may be controlled.
  • the outer end of the casing 5 is closed by a removable cap 14 which is provided with a stem 15 constituting an auxiliary valve chamber. -Within this stem a valve seat member 16 is secured with which coperates a safety valve 17 that is held to its seat by a spring 18. This spring 18 is backed against a cap 19 that is adjustably secured to the stem 15, said cap being provided with the port 20.
  • the safety valve 10 is provided With a central aperture 22 having a valve seat 23 at its inner end, which valve seat is normally closed by an inwardly-opening check valve 24 that is held to its seat by a spring 25 arranged to engage ay collar 26 on the end of the stem 27 of said valve 24.
  • This valve 24 is also provided with a projection 28 of such a length that when the casing 5 is in proper position and the safety valve 10 is closed, this projection will engage the end of the stem 3 of the usual valve 2 and open said valve away from its seat. Therefore, when my attachment is applied to a valve stem, the valve 2 with which the valve stem l is ordinarily supplied is open.
  • valve 10 will open the valve 10 and allow a certain amount of airv to pass into the chamber 8.
  • This chamber 8 may be made of any suitable size and if the amount of air which thus escapes into the chamber 8 is sul'iicient to relieve the excessive pressure in the tire, then the valve 10 will automatically seat itself again.
  • the i tension of the springs 12 and 18 can be adjusted so that the safety valves will o en when any predetermined pressure is reac ed in the pneumatic tire, and the presence of these valves operates to prevent blow-outs from occurring.
  • the chamber 8 is in the nature of a storage chamber as it receives and stores up a certain vcliune ef air when any air escapes from the tire through the valve l0: Aiter the pressure in the tire has been relieved by the eseape et air into the chamber 8, tbepressnre in said chamber will be substantially equal te that ci the increased. geressure in the tire, and this pressure will remain in the chamber 8 so long as the pressure in the tire does not decrease materially below its normal amount. lf, however, the tire pressure dces decrease, then the greater pressure in tbe chamber 8 will open tbe valve 2e, thus allowing some of the an' in the chamber 8 to pass back inte the tire again.
  • valve l0 is formed with the dange 3l by means ci which the valve is practically balanced, thus malrins1 it mere sensitive.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Pulmonology (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Check Valves (AREA)

Description

I w.1. YOUNG,` SAFETY VALVE FOR PNE-UMATIC TIRES. APPLICATION FILED FEB. I9 |914.
Wirneses. InvenTor.
Lm'fww/l. william. Young,
. b @MKM y AHys are WILLIAM J. YOUNG', 0F MINETTO, NEW YORK.
SAFETY-VALVE FOR PNEUMTIC TIRES.
Specification of Letters Patent.
Patented Mar. 5, 1918..
Application led February 19, 1914. Serial No. 819,811.
To all whomz't may concern:
Be it known that I, WmLrAM J. Yonne, a citizen of the United States, residin at Minette, county of Oswego, State of ew York, have invented an Improvement in Safety-Valves for Pneumatic Tires, of which the following description, in connection with the accompanying drawing, is a specilication, like characters on the drawing representing like parts.
This invention relates to safety valves for pneumatic tires which are designed to relieve the pressure within the tire when the latter exceeds a redetermined amount, and it has for its o ject to provide a novel safety valve of this type, all as will be more fully hereinafter described and then pointed out in the appended claim.
The drawings show a sectional View illustrating a selected embodiment of my invention from which the principle thereof will be readily seen.
1 designates the ordinary valve stem of a pneumatic tire having the usual valve 2 therein provided with a valve stem 3, said valve being normally seated by the spring 4. These are the parts which are of common construction and form no part of my present invention.
In accordance with my invention I provide a member 5 which is adapted to be screwed to the screw-threaded end 6 of the valve stem 1, said member having at its inner end a guiding head 7 which lits over the valve stem and which coperates with the screw-threaded portion to hold the member 5 rmly in place. This member 5 is provided with an outer chamber 8 which communicates with the bore of the valve stem 1 through a passageway 9 and this passageway is normally closed by a balanced safety valve 10 which is held a ainst aseat 11 by means of a spring 12. T e spring is shown as backed against an adjustable plate 13 that is screw-threaded into the chamber 8 and by means of which the tension of the spring may be controlled. The outer end of the casing 5 is closed by a removable cap 14 which is provided with a stem 15 constituting an auxiliary valve chamber. -Within this stem a valve seat member 16 is secured with which coperates a safety valve 17 that is held to its seat by a spring 18. This spring 18 is backed against a cap 19 that is adjustably secured to the stem 15, said cap being provided with the port 20. The
plate 18 is also provided with a port 21 for.
the escape of air.
The safety valve 10 is provided With a central aperture 22 having a valve seat 23 at its inner end, which valve seat is normally closed by an inwardly-opening check valve 24 that is held to its seat by a spring 25 arranged to engage ay collar 26 on the end of the stem 27 of said valve 24. This valve 24 is also provided with a projection 28 of such a length that when the casing 5 is in proper position and the safety valve 10 is closed, this projection will engage the end of the stem 3 of the usual valve 2 and open said valve away from its seat. Therefore, when my attachment is applied to a valve stem, the valve 2 with which the valve stem l is ordinarily supplied is open. The air in the tire, however, is prevented from escaping by means of the valves 24 and 10, the valve 24 being held to its seat by air pressure and the spring 27, while the valve 10 which is an outwardly-opening valve is held to its seat by the spring 12. This spring l2 will have suflicient strength to hold the valve 10 seated against the ordinary pressure in the tire.
If, however, the pressure in the tire increases either permanently or momentarily beyond the safety point by reason of the air in the tire becoming heated or because of the wheel running over obstructions, such increased pressure will open the valve 10 and allow a certain amount of airv to pass into the chamber 8. This chamber 8 may be made of any suitable size and if the amount of air which thus escapes into the chamber 8 is sul'iicient to relieve the excessive pressure in the tire, then the valve 10 will automatically seat itself again. If, however, the amount of air which escapes from the tire is greater than that required to lill the i tension of the springs 12 and 18 can be adjusted so that the safety valves will o en when any predetermined pressure is reac ed in the pneumatic tire, and the presence of these valves operates to prevent blow-outs from occurring.
The chamber 8 is in the nature of a storage chamber as it receives and stores up a certain vcliune ef air when any air escapes from the tire through the valve l0: Aiter the pressure in the tire has been relieved by the eseape et air into the chamber 8, tbepressnre in said chamber will be substantially equal te that ci the increased. geressure in the tire, and this pressure will remain in the chamber 8 so long as the pressure in the tire does not decrease materially below its normal amount. lf, however, the tire pressure dces decrease, then the greater pressure in tbe chamber 8 will open tbe valve 2e, thus allowing some of the an' in the chamber 8 to pass back inte the tire again.
it will be noted that the valve l0 is formed with the dange 3l by means ci which the valve is practically balanced, thus malrins1 it mere sensitive.
Having described my invention, what l claim as new and desire to secure by Letters Patent-is e u In a device of the class described, the cennbination with the vaive stein of a pneumatic tire, of akcasing secured theretcand provided with a chamber, said casing having an opening forming a communication between said chamber and the air passage ci aesacve said valve stem, theouter end of said opena ing constituting a valve seat, an outwardlycpening valve engaging said seat and having an extension which is received in said open ing, said valve having an axial passage therethrough and the lower end of said exneck, an outwardly-opening valve in the neck of the cap, an apertnred cap screwthreaded to the neck of the first-named cap, and a spring conined between said second cap and said second outwardly-opening valve.
ln testimony whereof, l have signed my naine to this specification, in the presence of two subscribing witnesses.
WILLIAM J. YOUNG. Witnesses:
S. F. KEDY, CEAS. H. YOUNG.
US1914819611 1914-02-19 1914-02-19 Safety-valve for pneumatic tires. Expired - Lifetime US1258079A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5060685A (en) * 1990-10-18 1991-10-29 Ilya Zhabokrug Safety cap for tire valve

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5060685A (en) * 1990-10-18 1991-10-29 Ilya Zhabokrug Safety cap for tire valve

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