US1536926A - Electric heating unit - Google Patents

Electric heating unit Download PDF

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Publication number
US1536926A
US1536926A US626970A US62697023A US1536926A US 1536926 A US1536926 A US 1536926A US 626970 A US626970 A US 626970A US 62697023 A US62697023 A US 62697023A US 1536926 A US1536926 A US 1536926A
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United States
Prior art keywords
electric heating
heating unit
quartz tube
tube
gas
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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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US626970A
Inventor
Probst Emil
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.)
General Electric Co
Original Assignee
General Electric 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.)
Filing date
Publication date
Application filed by General Electric Co filed Critical General Electric Co
Priority to US626970A priority Critical patent/US1536926A/en
Application granted granted Critical
Publication of US1536926A publication Critical patent/US1536926A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating

Definitions

  • My invention relates to electric heating units, and has for its object to make it pos- 10 sible to load the heating resistance specially high. and therewith to obtain at the same time a specially great radiating efi'ect.
  • a is a spirally bent quartz tube. 7) a heating resistance conductor situated therein.
  • the leading-in wires for the heating resistance 6 are fused 25 in at the twoends of the quartz tube a, so
  • quartz tube a is closed perfectly airtight. This sealing of the ends of the quartz tube a around the leading-in wires may be accomplished in any suitable manner, for
  • drawing 15 shown one illustrative.
  • the clesed tube a is filled with a gas which is indifi ercut as regardsithe resistance wire I). which gas causes the quartz tube a.
  • a filling gas hydrogen or nitrogen are suitable.
  • the quartz tube a itself may assume a comparatively high temperature without danger of its being destroyed or coming permeable to gas.

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  • Resistance Heating (AREA)

Description

May 5, 1925.
E. PROBST ELECTRIC HEATING UNIT Filed March 22; 1923 InvenLor Emil Probst:
Hi s ALLOTHGH- Patented May 5, 1925.
UNITED STATES PATENT oreiesq EMIL PROBST, OF CHARLOTTENBURG, GERMANY, ASSIGNOR TO COMPANY, A CORPORATION OF NEW YDRK.
GENERAL ELECTRIC ELECTRIC HEATING- UNIT.
Application filed March 22, 1923.
' To all whom it may concern:
Be it known that I. EMIL Puons'r, a citizen of the German Republic, residing at t harlottenburg, Germany; have invented 6 certain new and useful Improvements in Electric lleating Units, of which the following is a specification.
My invention relates to electric heating units, and has for its object to make it pos- 10 sible to load the heating resistance specially high. and therewith to obtain at the same time a specially great radiating efi'ect.
According to my invention the heating resistance is arranged in a spirally bent 5 quartz tube. which is closed and filled with an indifferent gas. Such a heating unit is particularly adapted for use in radiant heaters, or for like purposes. i
In the 2Q embodiment of my invention.
Referring to the drawing, a is a spirally bent quartz tube. 7) a heating resistance conductor situated therein. The leading-in wires for the heating resistance 6 are fused 25 in at the twoends of the quartz tube a, so
that the quartz tube a is closed perfectly airtight. This sealing of the ends of the quartz tube a around the leading-in wires may be accomplished in any suitable manner, for
-and a. drawing 15 shown one illustrative.
Serial No. 626,970,
example, by means of the blended seal process disclosed in United States Patent No. 1.173.688 to Elihu Thomson. The clesed tube a is filled with a gas which is indifi ercut as regardsithe resistance wire I). which gas causes the quartz tube a. As a filling gas, hydrogen or nitrogen are suitable.
The quartz tube a itself may assume a comparatively high temperature without danger of its being destroyed or coming permeable to gas.
What I claim as new and desire to secure by Letters Patent of the United States, is,--
1. An electric heating unit comprising a spirally bent quartz tube, said tube being closed and filled with an indifferent gas, resistance conductor extending through said tube.
2. An electric heating unit comprising a spirally bent quartz tube, a resistance condurtor in said tube extending throughout its length, and leadingdn wires for said resistance conductor, said tube having its ends sealed around said leading-in wires and being filled with an indifierent gas.
in witness whereof, I have hereunto set my hand this 27th day of February, 1923.
EMIL PROBST.
a good transmission of heat to :r'
of its 1112-
US626970A 1923-03-22 1923-03-22 Electric heating unit Expired - Lifetime US1536926A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US626970A US1536926A (en) 1923-03-22 1923-03-22 Electric heating unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US626970A US1536926A (en) 1923-03-22 1923-03-22 Electric heating unit

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US1536926A true US1536926A (en) 1925-05-05

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US626970A Expired - Lifetime US1536926A (en) 1923-03-22 1923-03-22 Electric heating unit

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE757229C (en) * 1936-11-20 1954-04-22 Siemens Schuckertwerke A G Electric heating element, suitable for operation in the open air
US6706235B1 (en) * 1999-11-26 2004-03-16 Heraeus Noblelight Gmbh Method for shaping a rivet from a plastic material in the form of a pin

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE757229C (en) * 1936-11-20 1954-04-22 Siemens Schuckertwerke A G Electric heating element, suitable for operation in the open air
US6706235B1 (en) * 1999-11-26 2004-03-16 Heraeus Noblelight Gmbh Method for shaping a rivet from a plastic material in the form of a pin

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