US1694730A - Impervious material - Google Patents

Impervious material Download PDF

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Publication number
US1694730A
US1694730A US636493A US63649323A US1694730A US 1694730 A US1694730 A US 1694730A US 636493 A US636493 A US 636493A US 63649323 A US63649323 A US 63649323A US 1694730 A US1694730 A US 1694730A
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US
United States
Prior art keywords
sulfur
artificial graphite
articles
impervious material
graphite
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
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US636493A
Inventor
Warren F Bleecker
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Individual
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Individual
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Priority to US636493A priority Critical patent/US1694730A/en
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Publication of US1694730A publication Critical patent/US1694730A/en
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Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L9/00—Rigid pipes
    • 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
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/30—Self-sustaining carbon mass or layer with impregnant or other layer

Definitions

  • My invention relates to an impervious and chemical resistant material and a method for its production and its main object is to provide a material suitable for making conduits, vesgls, pumpg valves and othe similar articles and devices, which is iiinpervrousto liquids and gases and Which is proof against the corrosive action of acids and other chemicals.
  • the base of the material is artificial graphite which while strictly chemipahproof, is by reason of its porosity not suitable for use in the production of apparatus employed to corn duct or contain liquids or gases and my invention consists in filling or closing the pores and interstices of the artificial graphite either before or after it has been formed into the desired shapes, with sulfur which by intimate contact with the walls thereof becomes an integral part of the material and renders it proof against the permeation of liquids and other fluids.
  • the liquid sulfur readily enters the pores and crevices of the graphite and after the material has thus been thoroughly impregnated, the bath is allowed to cool before the articles are taken out, to obtain the advantage of a maximum contraction of the molten mass prior to its final expansion.
  • An article of manufacture consisting of a solid body of artificial graphite, the vp igls of which are gilps erl,witlg s Di 2.
  • An article of manufacture consisting of a solid body of artificial graphite, the voids of Which are filled with sulfur.

Description

UNHTED STATES FATE QFHQE,
IMPERVIOUS MATERIAL.
No Drawing.
My invention relates to an impervious and chemical resistant material and a method for its production and its main object is to provide a material suitable for making conduits, vesgls, pumpg valves and othe similar articles and devices, which is iiinpervrousto liquids and gases and Which is proof against the corrosive action of acids and other chemicals.
The base of the material is artificial graphite Which while strictly chemipahproof, is by reason of its porosity not suitable for use in the production of apparatus employed to corn duct or contain liquids or gases and my invention consists in filling or closing the pores and interstices of the artificial graphite either before or after it has been formed into the desired shapes, with sulfur which by intimate contact with the walls thereof becomes an integral part of the material and renders it proof against the permeation of liquids and other fluids.
Since sulfur is equally capable of resisting the corrosive influences of acids and other chemicals as is the artificial graphite to which it is applied, it is evident that articles prepared according to my invention are particularly adapted for use in laboratories and factories to conduct and contain chemical liquids and gases, and that as such, the material is eminently suitable for the production of pumps, valves, conduits and vessels or containers of various types and forms.
In carrying my invention into effect, I place artificial graphite or articles made thereof in'a bath of molten sulfur which by p the properapplication of heat may be maintained in a liquid condition for an extended period.
Application filed May 3, 1923. Serial No. 638,493.
The liquid sulfur readily enters the pores and crevices of the graphite and after the material has thus been thoroughly impregnated, the bath is allowed to cool before the articles are taken out, to obtain the advantage of a maximum contraction of the molten mass prior to its final expansion.
It is desirable to remove the articles from the bath before it has cooled to a point of solidification, after which the sulfur contained in the pores and crevices of the graphite will harden in place and become a permanent and solid part of the material.
I desire it understood that while the above described process of applying the sulfur to artificial graphite is preferable by reason of its simplicity, practicability and economy, other methods may be resorted to within the spirit of my invention as defined in the hereunto appended claims, and that in accordance with the nature of the articles or the uses for which they are intended. the voids of the graphite may be completely filled withthe sulfur or merely closed at the surface thereof.
What I claim and desire to secure by Letters Patent is:
1. An article of manufacture consisting of a solid body of artificial graphite, the vp igls of which are gilps erl,witlg s Di 2. An article of manufacture consisting of a solid body of artificial graphite, the voids of Which are filled with sulfur.
In testimony whereof I have affixed my signature.
WVARREN F. BLEECKER.
US636493A 1923-05-03 1923-05-03 Impervious material Expired - Lifetime US1694730A (en)

Priority Applications (1)

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US636493A US1694730A (en) 1923-05-03 1923-05-03 Impervious material

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US636493A US1694730A (en) 1923-05-03 1923-05-03 Impervious material

Publications (1)

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US1694730A true US1694730A (en) 1928-12-11

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US636493A Expired - Lifetime US1694730A (en) 1923-05-03 1923-05-03 Impervious material

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2837506A (en) * 1956-01-26 1958-06-03 Du Pont Polymerization of chloroprene
US2906644A (en) * 1955-06-22 1959-09-29 Int Alloys Ltd Method of sealing interstices in refractory materials and apparatus made of the same
US2917404A (en) * 1955-04-30 1959-12-15 Kuhnle Ag Method of rendering porous graphite body impervious to fluids
US3208190A (en) * 1962-07-09 1965-09-28 Tile Council Of America Ceramic tile

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2917404A (en) * 1955-04-30 1959-12-15 Kuhnle Ag Method of rendering porous graphite body impervious to fluids
US2906644A (en) * 1955-06-22 1959-09-29 Int Alloys Ltd Method of sealing interstices in refractory materials and apparatus made of the same
US2837506A (en) * 1956-01-26 1958-06-03 Du Pont Polymerization of chloroprene
US3208190A (en) * 1962-07-09 1965-09-28 Tile Council Of America Ceramic tile

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