US2775363A - Vented closure plug - Google Patents

Vented closure plug Download PDF

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Publication number
US2775363A
US2775363A US520031A US52003155A US2775363A US 2775363 A US2775363 A US 2775363A US 520031 A US520031 A US 520031A US 52003155 A US52003155 A US 52003155A US 2775363 A US2775363 A US 2775363A
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US
United States
Prior art keywords
plug
aperture
closure plug
vented closure
cap
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
US520031A
Inventor
Elvin A Taylor
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.)
PLYMOUTH STAMPING CO
Original Assignee
PLYMOUTH STAMPING CO
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.)
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Publication date
Application filed by PLYMOUTH STAMPING CO filed Critical PLYMOUTH STAMPING CO
Priority to US520031A priority Critical patent/US2775363A/en
Application granted granted Critical
Publication of US2775363A publication Critical patent/US2775363A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B18/00—Breathing masks or helmets, e.g. affording protection against chemical agents or for use at high altitudes or incorporating a pump or compressor for reducing the inhalation effort
    • A62B18/08—Component parts for gas-masks or gas-helmets, e.g. windows, straps, speech transmitters, signal-devices
    • A62B18/10—Valves
    • 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]
    • Y10T137/7869—Biased open
    • Y10T137/7871—Weight biased

Definitions

  • the invention relates to vented closure plugs adapted for use in various places where it is desirable to close an aperture against entrance of dust or dirt and at the same time to permit breathing of air. It is the object of the invention to obtain a construction which can be manufactured at low cost and which effectively guards the breathing of air passage. To this end the invention consists in the construction as hereinafter set forth.
  • Fig. 1 is a central longitudinal section through a closure plug of my improved construction
  • Fig. 2 is a top plan view thereof.
  • the plug A is a hollow cup-shaped construction which is externally threaded in its lower portion B, while its upper portion C is frustoconical formed with a central aperture D in its top portion. Covering this aperture is an umbrella cap-shaped member E preferably formed of pressed sheet metal. This member has centrally thereof a depressed cupped portion E which forms a stem passing through the aperture D of a smaller diameter so as to provide clearance for the passage of air. To retain the member E from disengagement, the lower end portion of the cup E is upset to form a head E larger in diameter than said aperture.
  • the peripheral portion of the member B has a depending conical flange E which is parallel to the frustoconical portion C but spaced therefrom.
  • the cap member E is also provided with spaced depressed "Ice knob-like portions E which rest upon the top of the frustoconical portion surrounding the aperture D and hold the cap slightly spaced above the same.
  • the depending peripheral flange B will form an effective guard against entrance within the plug of dust or dirt while not interfering with the free passage of air.
  • cap is formed of pressed sheet metal, it is obvious that it could be formed of any suitable material.
  • a hollow plug having a frustoconical upper portion with an aperture through the top thereof, an umbrella cap covering said aperture and depending about the conical portion of said plug, being also provided with a depending stem portion passing through said aperture and headed at its lower end to prevent Withdrawal, said cap having a plurality of spaced downward projections for resting on the top of said plug and holding the intervening portions slightly spaced therefrom.

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  • Health & Medical Sciences (AREA)
  • Pulmonology (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Closures For Containers (AREA)

Description

- Dec. 25, 19 56 E. A. TAYLOR 2,775,363
VENTED CLOSURE PLUG Filed July 5, 1955 INVENTOR.
ELVIN A.TAYLOR ATTORNEYS United States Patent VENTED CLOSURE PLUG Elvin A. Taylor, Plymouth, Mich., assignor to Plymouth Stamping Company, Plymouth, Mich., a corporation of Michigan Application July 5, 1955, Serial No. 520,031
4 Claims. (Cl. 220-44) The invention relates to vented closure plugs adapted for use in various places where it is desirable to close an aperture against entrance of dust or dirt and at the same time to permit breathing of air. It is the object of the invention to obtain a construction which can be manufactured at low cost and which effectively guards the breathing of air passage. To this end the invention consists in the construction as hereinafter set forth.
In the drawings: 1
Fig. 1 is a central longitudinal section through a closure plug of my improved construction;
Fig. 2 is a top plan view thereof.
The plug A is a hollow cup-shaped construction which is externally threaded in its lower portion B, while its upper portion C is frustoconical formed with a central aperture D in its top portion. Covering this aperture is an umbrella cap-shaped member E preferably formed of pressed sheet metal. This member has centrally thereof a depressed cupped portion E which forms a stem passing through the aperture D of a smaller diameter so as to provide clearance for the passage of air. To retain the member E from disengagement, the lower end portion of the cup E is upset to form a head E larger in diameter than said aperture. The peripheral portion of the member B has a depending conical flange E which is parallel to the frustoconical portion C but spaced therefrom. The cap member E is also provided with spaced depressed "Ice knob-like portions E which rest upon the top of the frustoconical portion surrounding the aperture D and hold the cap slightly spaced above the same. Thus, the depending peripheral flange B will form an effective guard against entrance within the plug of dust or dirt while not interfering with the free passage of air.
While I have described the cap as formed of pressed sheet metal, it is obvious that it could be formed of any suitable material.
What I claim as my invention is:
1. A hollow plug having a frustoconical upper portion with an aperture through the top thereof, an umbrella cap covering said aperture and depending about the conical portion of said plug, being also provided with a depending stem portion passing through said aperture and headed at its lower end to prevent Withdrawal, said cap having a plurality of spaced downward projections for resting on the top of said plug and holding the intervening portions slightly spaced therefrom.
2. The construction as in claim 1 in which said cap is formed of pressed sheet material with a cupped central portion of relatively small diameter forming said stem and upset at its lower end to form a retaining head.
3. The construction as in claim 2 in which said depending portions are downwardly pressed knobs.
4. The construction as in claim 1 in which said plug is inverted cup-shaped having a frustoconical upper portion centrally apertured in the top thereof, said cap having a flaring down turned flange parallel to said conical portion and slightly spaced therefrom.
References Cited in the file of this patent UNITED STATES PATENTS 641,011 Heidel Jan. 9, 1900 1,482,534 Woodbridge Feb. 5, 1924 2,124,455 Hopkins July 19, 1938 2,352,251 Calleson et al June 27, 1944 2,685,383 Kochner Aug. 3, 1954 FOREIGN PATENTS 279,723 Great Britain Nov. 3, 1927
US520031A 1955-07-05 1955-07-05 Vented closure plug Expired - Lifetime US2775363A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US520031A US2775363A (en) 1955-07-05 1955-07-05 Vented closure plug

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US520031A US2775363A (en) 1955-07-05 1955-07-05 Vented closure plug

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US2775363A true US2775363A (en) 1956-12-25

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3388714A (en) * 1965-10-24 1968-06-18 Gen Motors Corp Vent assembly
US3454182A (en) * 1965-09-30 1969-07-08 Timken Roller Bearing Co Vent grommets
US4177831A (en) * 1977-08-25 1979-12-11 Schmelzer Corporation Flexible time delay valve
US4872476A (en) * 1988-05-24 1989-10-10 Caltherm Corporation Check valve for engine cooling system
US8640733B1 (en) 2012-10-09 2014-02-04 Brasscraft Manufacturing Company Excess flow cartridge
US8875725B2 (en) 2012-10-09 2014-11-04 Brasscraft Manufacturing Company Fluid connector with integrated excess flow valve
US9383025B2 (en) 2013-12-16 2016-07-05 Brasscraft Manufacturing Company Excess flow valve with cage

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US641011A (en) * 1899-02-04 1900-01-09 Globe Electric Company Battery.
US1482534A (en) * 1922-02-24 1924-02-05 Joseph L Woodbridge Closure for storage-battery cells
GB279723A (en) * 1927-05-05 1927-11-03 Hans Ernst Improved closure for preserve tins and similar vessels
US2124455A (en) * 1934-06-09 1938-07-19 Prest O Lite Storage Battery C Storage battery vent plug
US2352251A (en) * 1940-03-08 1944-06-27 Crown Can Company Valved container
US2685383A (en) * 1952-09-20 1954-08-03 Knapp Monarch Co Pressure bulb cap

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US641011A (en) * 1899-02-04 1900-01-09 Globe Electric Company Battery.
US1482534A (en) * 1922-02-24 1924-02-05 Joseph L Woodbridge Closure for storage-battery cells
GB279723A (en) * 1927-05-05 1927-11-03 Hans Ernst Improved closure for preserve tins and similar vessels
US2124455A (en) * 1934-06-09 1938-07-19 Prest O Lite Storage Battery C Storage battery vent plug
US2352251A (en) * 1940-03-08 1944-06-27 Crown Can Company Valved container
US2685383A (en) * 1952-09-20 1954-08-03 Knapp Monarch Co Pressure bulb cap

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3454182A (en) * 1965-09-30 1969-07-08 Timken Roller Bearing Co Vent grommets
US3388714A (en) * 1965-10-24 1968-06-18 Gen Motors Corp Vent assembly
US4177831A (en) * 1977-08-25 1979-12-11 Schmelzer Corporation Flexible time delay valve
US4872476A (en) * 1988-05-24 1989-10-10 Caltherm Corporation Check valve for engine cooling system
US8640733B1 (en) 2012-10-09 2014-02-04 Brasscraft Manufacturing Company Excess flow cartridge
US8875725B2 (en) 2012-10-09 2014-11-04 Brasscraft Manufacturing Company Fluid connector with integrated excess flow valve
US9383025B2 (en) 2013-12-16 2016-07-05 Brasscraft Manufacturing Company Excess flow valve with cage

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