US1791190A - Spark plug - Google Patents

Spark plug Download PDF

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Publication number
US1791190A
US1791190A US397703A US39770329A US1791190A US 1791190 A US1791190 A US 1791190A US 397703 A US397703 A US 397703A US 39770329 A US39770329 A US 39770329A US 1791190 A US1791190 A US 1791190A
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United States
Prior art keywords
spark plug
shell
electrode
ring
skirt
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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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US397703A
Inventor
Emil P Butusov
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Individual
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Individual
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Priority to US397703A priority Critical patent/US1791190A/en
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Publication of US1791190A publication Critical patent/US1791190A/en
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Expired - Lifetime legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
    • H01T13/00—Sparking plugs
    • H01T13/20—Sparking plugs characterised by features of the electrodes or insulation
    • H01T13/24—Sparking plugs characterised by features of the electrodes or insulation having movable electrodes

Definitions

  • This invention appertains to new and useful improvements in spark plugs and the same has as its principle object the provision of means whereby the collection of carbon with in the usual skirt portion thereof is elimi nated.
  • Another important object of the invention is to provide a spark plug wherein the sparking points will always be maintained clean.
  • Figure 1 represents a longitudinal sectional View through the novel plug structure.
  • Figure 2 represents a cross sectional view taken substantially on line the movable element.
  • the novel spark plug includes a dielectric body 5, which tapers toward its upper end and which is provided with a longitudinal bore for receiving the positive electrode 6.
  • This electrode extends through the upper end of the body 5 and connects to the threaded projection 7, which serves as a binding post when the knurled nut 8 is engaged thereon.
  • the high tension wire of the ignition system is obviously connected to this binding post.
  • the lower portion of the body is constructed to provide a shoulder 9 which is adapted for disposition within the cavity 10 of the spark plug shell 11.
  • This shell is internally thread-ed at the said cavity 10 for the reception of the threaded portion of a ja-mbnut 12. It will be observed that suitable packing is placed within the cavity, between the body 5 and the shell 11 and nut 12.
  • the shell 11 is provided with a depending cylindrical skirt 13 which is provided with external threads and which has a counterbore 14; for the reception of the conductor ring 15.
  • This ring may be secured to the 2-2 of Figure 1.
  • Figure 3 represents a perspective view of 4 skirt in any suitable manner, as by spotwelding, sweating, or the like.
  • Extending from the lower end of the electrode 6 is an enlarged continuation thereof denoted by numeral 16, the same being provided at lower end with a head 17.
  • a conical shaped body 18 of some suitable current conductive material is slidably disposed on the shank 16 and normally rests upon the head 17.
  • a compressible spring 19 is convoluted on the shank 16 and is interposed 1 between the inner end of the body 5 and the apex portion of the body 18.
  • the body 18 is thus tensionally against the head 17 and in normal relation with respect to the ring 15.
  • the spark plug When the spark plug is energized, the spark will ump from the body 18 to the ring 15 and as the explosion takes place, 18 is forced upwardly so as to seat against the ring 15, thus preventing any carbon particles from collecting within the skirt 13. As the power of the explosion dissipates, the body 18 will return to its position upon the head 17.

Description

E. P. BUTUSOV SPARK PLUG Filed Oct. 5. 1929 Inventor 17 /1327 fffiaiwsov A iiomey Patented Feb. 3, 1931 EMIL r. BUrusov, or CHICAGO, IfiLINOIS SPARK PLUG 7 Application filed Sctober 5, 1829. Serial No. 397,703.
This invention appertains to new and useful improvements in spark plugs and the same has as its principle object the provision of means whereby the collection of carbon with in the usual skirt portion thereof is elimi nated.
Another important object of the invention is to provide a spark plug wherein the sparking points will always be maintained clean.
These and other important objects and advantages of the invention -will become more apparent to the reader after considering the invention as described and claimed hereinafter.
In the drawings: a
Figure 1 represents a longitudinal sectional View through the novel plug structure.
Figure 2 represents a cross sectional view taken substantially on line the movable element.
Referring to the drawings, wherein like numerals designate like parts, it will be seen that the novel spark plug includes a dielectric body 5, which tapers toward its upper end and which is provided with a longitudinal bore for receiving the positive electrode 6.
This electrode extends through the upper end of the body 5 and connects to the threaded projection 7, which serves as a binding post when the knurled nut 8 is engaged thereon. The high tension wire of the ignition system is obviously connected to this binding post.
The lower portion of the body is constructed to provide a shoulder 9 which is adapted for disposition within the cavity 10 of the spark plug shell 11. This shell is internally thread-ed at the said cavity 10 for the reception of the threaded portion of a ja-mbnut 12. It will be observed that suitable packing is placed within the cavity, between the body 5 and the shell 11 and nut 12.
The shell 11 is provided with a depending cylindrical skirt 13 which is provided with external threads and which has a counterbore 14; for the reception of the conductor ring 15. This ring may be secured to the 2-2 of Figure 1. Figure 3 represents a perspective view of 4 skirt in any suitable manner, as by spotwelding, sweating, or the like.
Extending from the lower end of the electrode 6 is an enlarged continuation thereof denoted by numeral 16, the same being provided at lower end with a head 17. A conical shaped body 18 of some suitable current conductive material is slidably disposed on the shank 16 and normally rests upon the head 17. A compressible spring 19 is convoluted on the shank 16 and is interposed 1 between the inner end of the body 5 and the apex portion of the body 18.
The body 18 is thus tensionally against the head 17 and in normal relation with respect to the ring 15. I
When the spark plug is energized, the spark will ump from the body 18 to the ring 15 and as the explosion takes place, 18 is forced upwardly so as to seat against the ring 15, thus preventing any carbon particles from collecting within the skirt 13. As the power of the explosion dissipates, the body 18 will return to its position upon the head 17.
Changes in the shape, size and materials may be resorted to in the construction of this novel spark plug without departing from the spirit and scope of the invention as claimed I hereinafter.
Having thus described the invention, what I claim is:
1. In a spark plug, a shell, a positive electrode disposed through the shell, a body slidable on the lower portion of the electrode and adapted to seat against the lower end of the shell, and means on the lower end of the eleitrode upon which the body may normally res 2. In a spark plug, a shell, a positive electrode disposed through the shell, a body slidable on the lower portion of the electrode and adapted to seat against the lower end of the shell, and means on the lower end of the electrode upon which the body may normally rest, and spring means on the electrode for normally urging the body against the said means on the lower portion of the electrode.
8. In a spark plug, a shell, an electrode disposed through the shell, a conductor ring maintained spaced the body F 1,7e1,1eo
EMIL P. BUTUSOV.
US397703A 1929-10-05 1929-10-05 Spark plug Expired - Lifetime US1791190A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US397703A US1791190A (en) 1929-10-05 1929-10-05 Spark plug

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US397703A US1791190A (en) 1929-10-05 1929-10-05 Spark plug

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US1791190A true US1791190A (en) 1931-02-03

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE34152E (en) * 1987-08-19 1992-12-29 Unison Industries Limited Partnership Igniter plug with vibration damping means

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE34152E (en) * 1987-08-19 1992-12-29 Unison Industries Limited Partnership Igniter plug with vibration damping means

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