US1313493A - Leak-detector eor pneumatic-tire valves - Google Patents

Leak-detector eor pneumatic-tire valves Download PDF

Info

Publication number
US1313493A
US1313493A US1313493DA US1313493A US 1313493 A US1313493 A US 1313493A US 1313493D A US1313493D A US 1313493DA US 1313493 A US1313493 A US 1313493A
Authority
US
United States
Prior art keywords
leak
pneumatic
detector
eor
tire valves
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
Publication date
Application granted granted Critical
Publication of US1313493A publication Critical patent/US1313493A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00—Investigating fluid-tightness of structures
    • G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
    • G01M3/28—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds
    • G01M3/2876—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for valves

Definitions

  • My invention relates to a leak detector for air valves of pneumatic tires.
  • the object of my invention is to design a very simple and inexpensive leak detector which will quickly and infallibly indicate any leakage past the air inlet valve of pneumatic tires.
  • My invention comprises a holder for an elastic diaphragm provided with a compressible marginal bead which is engaged by the holder and exposed so as to seat against and seal the jointbetween the diaphragm and the top of the valve stem.
  • Figure 1 illustrates the ordinary valve stem broken away and shown with my improved leak detector applied thereto in vertical section taken on the line l-1 of Fig. 2.
  • Fig. 2 is a plan view of the device.
  • Fig. 3 is a side elevation of the device. 7
  • a handle 1 formed preferably of stamped metal, though any other material may be employed, and. this handle is provided with a head 2 having a circular opening therein, the sides of the head being formed with down turned curved flanges which serve to embrace and hold the annular elastic bead 4 surrounding and attached to or formed integral with the base of the thin rubber diaphragm 5. While rubber is provided for the diaphragm and 1ts bead, it should be understood that any other suitable material may be employed.
  • the curved side flanges 3 embrace only the sides of the bead and in doing so the flanges leave the under side of the bead sufliciently exposed to engage the top of the valve stem 6, thus leaving an anholder until the diaphragm is forcibly re-' moved and replaced by a new one.
  • a handle having an opening therein,'a flexible diaphragm having a marginal bead, and means to engage said bead to hold it in position against the underside of the handle with the diaphragm in position to expand through the opening in the handle.
  • a leak detector for tire valves comprising a stamped metal handle having at one end an enlarged opening and down turned flanges, in combination with a removable detector comprising a flexible diaphragm having an enlarged integral elastic bead surrounding its base, said bead at its sides being engaged by said flanges and held against the underface of the handle with the diaphragm in position to expand upwardly through the opening in the handle, substan tially as described.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Fluid Pressure (AREA)
  • Check Valves (AREA)

Description

. LOKEY.
C. W LEAK DETECTOB FOR PNEUMATIC TIR E VALV ES.'
APPLICATION HLED APR. 3. 1 919.
Patented Aug. 19, 1919.
Wilt/um a m N 7 N NIB COLUMBIA nLANoal'lAPu 1.10., WASHINUTONfD. 1:,
CHARLES W. LOKEY, 0F IBI'RMING-H'AM, ALABAMA.
LEAK-DETECTOR FOR PNEUMATIC-TIRE VALVES.
Specification of Letters Patent.
Patented Aug. 19, 1919.
Application filed April 3, 1919. Serial No. 287,354.
To all whom it may concern Be it known that I, CHARLES W. LOKEY, a citizen of the United States of America, residing at Birmingham, in the county of Jefferson and State of Alabama, have invented certain new and useful Improvements in Leak-Detectors for Pneumatic- Tire Valves, of which the following is a specification.
My invention relates to a leak detector for air valves of pneumatic tires.
The object of my invention is to design a very simple and inexpensive leak detector which will quickly and infallibly indicate any leakage past the air inlet valve of pneumatic tires.
My invention comprises a holder for an elastic diaphragm provided with a compressible marginal bead which is engaged by the holder and exposed so as to seat against and seal the jointbetween the diaphragm and the top of the valve stem.
My invention is illustrated in its preferred embodiment in the accompanying drawings, in which Figure 1 illustrates the ordinary valve stem broken away and shown with my improved leak detector applied thereto in vertical section taken on the line l-1 of Fig. 2.
Fig. 2 is a plan view of the device.
Fig. 3 is a side elevation of the device. 7
Similar reference numerals refer to similar parts throughout the drawings.
As illustrated in its simplest embodiment, I show a handle 1 formed preferably of stamped metal, though any other material may be employed, and. this handle is provided with a head 2 having a circular opening therein, the sides of the head being formed with down turned curved flanges which serve to embrace and hold the annular elastic bead 4 surrounding and attached to or formed integral with the base of the thin rubber diaphragm 5. While rubber is provided for the diaphragm and 1ts bead, it should be understood that any other suitable material may be employed. It will be noted that the curved side flanges 3 embrace only the sides of the bead and in doing so the flanges leave the under side of the bead sufliciently exposed to engage the top of the valve stem 6, thus leaving an anholder until the diaphragm is forcibly re-' moved and replaced by a new one. The diaphragm being assembled in the handle, it is only necessary to place the head 2 of the latter over the valve stem 7 so that the bead 4: will engage the top of the valve stem and being of like diameter therewith will form a packing for the joint, when the handle is pressed downwardly, which will cause any leakage of air to promptly indicate itself by expanding the diaphragm which normally takes the retracted or deflated position indicated in full lines, Fig. 3.
This invention is not intended to be restricted in scope to the specific embodiments shown, but contemplates such modifications as come within the spirit and scope of the claims.
Having thus described my invention, whatI claim as new and desire to secure by Letters Patent, is
1. A handle having an opening therein,'a flexible diaphragm having a marginal bead, and means to engage said bead to hold it in position against the underside of the handle with the diaphragm in position to expand through the opening in the handle.
2. A leak detector for tire valves comprising a stamped metal handle having at one end an enlarged opening and down turned flanges, in combination with a removable detector comprising a flexible diaphragm having an enlarged integral elastic bead surrounding its base, said bead at its sides being engaged by said flanges and held against the underface of the handle with the diaphragm in position to expand upwardly through the opening in the handle, substan tially as described.
In testimony whereof I affix my signature.
' CHARLES W. LOKEY.
Witness: 7
NOMIE WELSH.
fiopies of this patent may be obtainedior five cents each, by addressing the "Commissioner of Patents,
Washington, D. 0."
US1313493D Leak-detector eor pneumatic-tire valves Expired - Lifetime US1313493A (en)

Publications (1)

Publication Number Publication Date
US1313493A true US1313493A (en) 1919-08-19

Family

ID=3380986

Family Applications (1)

Application Number Title Priority Date Filing Date
US1313493D Expired - Lifetime US1313493A (en) Leak-detector eor pneumatic-tire valves

Country Status (1)

Country Link
US (1) US1313493A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2665580A (en) * 1952-10-30 1954-01-12 Clawson Dwight Valve leak detector

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2665580A (en) * 1952-10-30 1954-01-12 Clawson Dwight Valve leak detector

Similar Documents

Publication Publication Date Title
US625114A (en) Inflation-valve
US1724063A (en) Combined inflating and deflating valve
US1313493A (en) Leak-detector eor pneumatic-tire valves
US1304814A (en) kraft
US2047405A (en) Combined tire inflater and pressure gauge
US2482922A (en) Airline inflating gun
US3456676A (en) Tire valve
US1731632A (en) Pressure indicator
US1423873A (en) Valve device for pneumatic tires
US1246131A (en) Combined tire-valve and pressure-governor.
US1213518A (en) Coupling for pneumatic tires.
US2160398A (en) Valve stem
US574992A (en) Valve for pneumatic tires
US636465A (en) Valve for inflation.
US2147153A (en) Valve stem
US838219A (en) Nipple connection and valve-opener.
US603510A (en) Inflation-tube
US1166221A (en) Blow-off valve.
US558606A (en) Bicycle-tire valve
US1472712A (en) Tire-valve tester
US1101008A (en) Valve.
US577122A (en) Air-valve
US1198287A (en) Attachment for pneumatic-tire valves.
US1238249A (en) Air-pressure gage.
US1693084A (en) Tire valve