US1748510A - Electric heater for valves - Google Patents

Electric heater for valves Download PDF

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Publication number
US1748510A
US1748510A US331247A US33124729A US1748510A US 1748510 A US1748510 A US 1748510A US 331247 A US331247 A US 331247A US 33124729 A US33124729 A US 33124729A US 1748510 A US1748510 A US 1748510A
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United States
Prior art keywords
electric heater
valves
valve
heater
core
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
US331247A
Inventor
Paris R Forman
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.)
National Pneumatic Co Inc
Original Assignee
National Pneumatic Co Inc
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 National Pneumatic Co Inc filed Critical National Pneumatic Co Inc
Priority to US331247A priority Critical patent/US1748510A/en
Application granted granted Critical
Publication of US1748510A publication Critical patent/US1748510A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • 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
    • Y10T137/6416—With heating or cooling of the system
    • Y10T137/6606—With electric heating element

Definitions

  • This invention relates in general to the combination of an electric heater and a valve by means of which the temperature of the valve is maintained above the freezing point.
  • One of the objects of this invention is the provision of an exceedingly simple electric heating element and a conducting member for uniting it with a valve by means of which the conducting member carries the heat to the valve to maintain its temperature above the freezing point.
  • a further object of this invention is the provision of a structure of this type which is exceedingly simple, easy to manufacture, and rugged and eflicient in use.
  • This invention resides substantially in the combination, construction, arrangement, and relative location of parts, all as will be setforth hereinafter.
  • Figure 1 is a top plan view of the device of this invention showing the association of the valve and heater;
  • Fig. 2 is a longitudinal cross sectional view through the heater.
  • Fig. 1 The struct-ure is clearly shown in Fig. 1 as comprising a support 1 by means of which the valve is secured, for instance to the pneumatic motor.
  • the valve 2 is shown generally and is of the electro-magnetic type but, of iourse, is not necessarily limited to this form.
  • the electric heater has been shown generally at 3 secured to the support.
  • the parts 1, 2 and 3 are attached mechanically and being of metal provide a path for the heat.
  • the heater structure is shown comprising two spaced end members 6 for closing the cylindrical casing 5. These parts are held together by long bolts and nuts 7. Mounted within the casing is an iron core 8 having a reduced threaded portion 9. The core is encircled by a suitable insulator 10 against which lie a number of spaced turns of resistance wire 11. These turns are covered by another insulating layer 12 against which lies a second coil of spaced turns. rThis coil is also encased in the insulating layer 13 and all the parts are surrounded by the heat insulating material 14. The two layers of coils are in series and the two terminals 15 are connected to the binding posts 4. The support 1 is provided with a threaded hole into which the reduced end 9 of the core 8 is screwed.
  • T have embodied certain principles in a structure given for purposes of illustration but T do not desire to be limited to this structure since many changes in its details will occur to those skilled in the art without depart-ing from those principles. T do not desire, therefore, to be limited except as required by the appended claim.
  • the combination comprising a compressed air valve

Description

lFeb. 25, 1930. P. R. FORMAN 1,748,510
ELECTRIC HEATER FOR VALVES Filed Jan. 9, 1929 lvwemtoz Patented Feb. 25, 1930 0 PATENT OFFICE PARIS R. FORMAN, OF RAHXVAY,
COMPANY, OF NEW YORK,
ELECTRIC HEATER FOR VALVES Application filed January 9, 1929. Serial No.
This invention relates in general to the combination of an electric heater and a valve by means of which the temperature of the valve is maintained above the freezing point.
One of the objects of this invention is the provision of an exceedingly simple electric heating element and a conducting member for uniting it with a valve by means of which the conducting member carries the heat to the valve to maintain its temperature above the freezing point.
A further object of this invention Ais the provision of a structure of this type which is exceedingly simple, easy to manufacture, and rugged and eflicient in use.
These and other objects, as will appear from the following disclosure, are secured by means of this invention.
This invention resides substantially in the combination, construction, arrangement, and relative location of parts, all as will be setforth hereinafter.
Referring to the drawings Figure 1 is a top plan view of the device of this invention showing the association of the valve and heater; and
Fig. 2 is a longitudinal cross sectional view through the heater.
In pneumatic systems such as those used for operatingdoors, gates, windows, and the like by means of pneumatic motors di'liiculty often arises by reason of the fact that the water vapor contained in the compressed air when the device is used on street cars, sub way trains, and the like, freezes under winter operating conditions. In compressing air for use in pneumatic systems the water vapor is condensed into small drops which often freeze and clog the system particularly at the control valves. The principle of this inventioniis to provide a device by means of which the control valves are maintained at a temperature where the water vapor cannot freeze.`
The struct-ure is clearly shown in Fig. 1 as comprising a support 1 by means of which the valve is secured, for instance to the pneumatic motor. The valve 2 is shown generally and is of the electro-magnetic type but, of iourse, is not necessarily limited to this form. The electric heater has been shown generally at 3 secured to the support. The parts 1, 2 and 3 are attached mechanically and being of metal provide a path for the heat.
The heater structure is shown comprising two spaced end members 6 for closing the cylindrical casing 5. These parts are held together by long bolts and nuts 7. Mounted within the casing is an iron core 8 having a reduced threaded portion 9. The core is encircled by a suitable insulator 10 against which lie a number of spaced turns of resistance wire 11. These turns are covered by another insulating layer 12 against which lies a second coil of spaced turns. rThis coil is also encased in the insulating layer 13 and all the parts are surrounded by the heat insulating material 14. The two layers of coils are in series and the two terminals 15 are connected to the binding posts 4. The support 1 is provided with a threaded hole into which the reduced end 9 of the core 8 is screwed.
When electric current is supplied to the heating coil 11 by connecting a. current source to the binding pest Li the heat generated is con ducted by core 8 and reduced portion 9 to the support 1 and to the valve body Q. Thus by this arrangement the temperature of thel valve may be maintained above the point where the water vapor in the air controlled by the valve will freeze.
From the foregoing disclosure it will be apparent that T have embodied certain principles in a structure given for purposes of illustration but T do not desire to be limited to this structure since many changes in its details will occur to those skilled in the art without depart-ing from those principles. T do not desire, therefore, to be limited except as required by the appended claim.
NEVJ JERSEY, ASSIGNOR TO NATTONAL YNEUIIATIC 1l. Y., A CORPORATTON OF Ti'l" VRGTNIA keo What I seek to secure by United States Letters Patent is:
In a device of the type described, the combination comprising a compressed air valve,
a heat conducting core detachably connected PARIS R. FORMAN.
US331247A 1929-01-09 1929-01-09 Electric heater for valves Expired - Lifetime US1748510A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US331247A US1748510A (en) 1929-01-09 1929-01-09 Electric heater for valves

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US331247A US1748510A (en) 1929-01-09 1929-01-09 Electric heater for valves

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US1748510A true US1748510A (en) 1930-02-25

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US331247A Expired - Lifetime US1748510A (en) 1929-01-09 1929-01-09 Electric heater for valves

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2518863A (en) * 1947-10-17 1950-08-15 Jr Charles C Camden Heating jacket for auto drain valves
US4131785A (en) * 1976-02-18 1978-12-26 Electro-Therm, Inc. Electrically heated liquid tank employing heat pipe heat transfer means
US5965046A (en) * 1996-04-17 1999-10-12 Applied Materials, Inc. Method and apparatus for baking out a gate valve in a semiconductor processing system
US6536458B1 (en) * 1998-12-24 2003-03-25 Peter Kindermann Device for heating a tap

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2518863A (en) * 1947-10-17 1950-08-15 Jr Charles C Camden Heating jacket for auto drain valves
US4131785A (en) * 1976-02-18 1978-12-26 Electro-Therm, Inc. Electrically heated liquid tank employing heat pipe heat transfer means
US5965046A (en) * 1996-04-17 1999-10-12 Applied Materials, Inc. Method and apparatus for baking out a gate valve in a semiconductor processing system
US6274854B1 (en) 1996-04-17 2001-08-14 Applied Materials, Inc. Method and apparatus for baking out a gate valve in a semiconductor processing system
US6536458B1 (en) * 1998-12-24 2003-03-25 Peter Kindermann Device for heating a tap

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