US2019421A - Attachment for refrigerating systems - Google Patents

Attachment for refrigerating systems Download PDF

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US2019421A
US2019421A US743921A US74392134A US2019421A US 2019421 A US2019421 A US 2019421A US 743921 A US743921 A US 743921A US 74392134 A US74392134 A US 74392134A US 2019421 A US2019421 A US 2019421A
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stem
chamber
attachment
window
passage
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US743921A
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Edgar T Link
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/40—Fluid line arrangements
    • 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
    • Y10T137/1624—Destructible or deformable element controlled
    • Y10T137/1632—Destructible element
    • Y10T137/1639—Combined destructible and fusible element
    • 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
    • Y10T137/1624—Destructible or deformable element controlled
    • Y10T137/1632—Destructible element
    • Y10T137/1692—Rupture disc
    • Y10T137/1759—Knife or cutter causes disc to break
    • Y10T137/1767—Movable knife or cutter
    • 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
    • Y10T137/1624—Destructible or deformable element controlled
    • Y10T137/1797—Heat destructible or fusible
    • Y10T137/1812—In fluid flow path
    • 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
    • Y10T137/598—With repair, tapping, assembly, or disassembly means
    • Y10T137/612—Tapping a pipe, keg, or apertured tank under pressure
    • Y10T137/6123—With aperture forming means
    • 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
    • Y10T137/6851—With casing, support, protector or static constructional installations
    • Y10T137/7043—Guards and shields
    • 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
    • Y10T137/8158—With indicator, register, recorder, alarm or inspection means
    • Y10T137/8359—Inspection means

Definitions

  • This invention relates to an attachment for a refrigerating system, the general object of the invention being to provide means whereby the system can be easily serviced, and voided, with means for automatically voiding the system in case of fire.
  • Fig. 1 is an elevation of the device.
  • Fig. 2 is a vertical sectional view thereof.
  • Fig. 3 is a section on line 33 of Fig. 2.
  • Fig. 4. is a section on line 4-4 of Fig. 2.
  • Fig. 5 is a view of the lower part of the pointed stem.
  • Fig. 6 is a view of the split ring for holding a filter screen in position.
  • Fig. '7 is a view of the screen.
  • Fig. 8 is a view of another part of the valve assembly.
  • the numeral I indicates the 30 body of the device which has a plug 2 closing its upper end, the plug being provided with a threaded hole 3 for receiving a line leading from the system.
  • the upper part of the body forms a chamber 4 which contains the refrigerant drying 35 material 5, such as anhydrous calcium chloride.
  • This material rests on a filter or screen disk 6 which in turn rests on a split ring I seated on a shoulder 8 formed at the bottom of the chamber, said bottom having a recess 9 therein of smaller 40 diameter than the chamber so as to provide the shoulder and this recess and the disk seated on the ring forms a space below the material 5.
  • a smaller chamber I0 is formed in the lower part of the body and is separated from the first 45 chamber by a partition forming part II of the body which is provided with a centrally arranged passage I2 connecting the two chambers together.
  • a tubular stem I3 has its upper end threaded in the lower end of the passage I2 and the bore of the stem forms a continuation of the passage I2 with the lower end of the stem spaced a considerable distance from the bottom of the chamber II'I.
  • Flanges I4 are formed on the stem and act as stops for a float disk I5 which is preferably white so that it will readily be distinguished from by a part of the glass cylinder so that the stem 16 and the float and a portion of the interior of the chamber can be seen.
  • the lower part of the body is of less diameter than the upper portion and an intermediate part is threaded as at 2I for I receiving the threaded upper end of a cap or cover 22 which covers the Window and prevents the glass cylinder from being broken so the cover can easily be removed when the parts are to be observed through the window.
  • An outlet passage 23 extends from the top of the chamber Ill through a side portion of the part II, the outer end of the passage being enlarged and threaded to receive the threaded end of a Valve casing 24.
  • a stem 35 slidingly passes through the stem 21 and has a handle 36 threaded to its upper end and a threaded intermediate part of the stem 35 is threaded in a socket formed in the lower end of 40 the valve 28, as shown at 31, and the stem 35 carries a collar 38 having a gasket thereon for forming a fiuid tight connection with the lower end of the valve when the parts are in the position shown in Figure 2.
  • the lower end of the stem 35 is pointed so that by unscrewing the stem 35 from the valve 28 and pressing upon the stem 35 it can be forced downwardly to cause its pointed end to puncture the disk 34 so that the system can be drained and by connecting thepipe 33 to a source of supply the system can be charged or this pipe 33 can be used for bypassing the fluid from one part of the system to another part.
  • the pipe 33 By lowering the valve 28 upon the seat formed at the upper end of the tube 30 the pipe 33 can be disconnected from the rest of the system.
  • the refrigerant fluid entering the device must first pass through the material 5 in the chamber 4 which will remove moisture and then pass through the filter 6 which removes dirt and then the fluid enters the passage l2 and flows through the stem into the chamber I0. As it passes from the stem, it strikes the reflector I8 carried by the washer l8 and then the fluid passes upwardly filling the cylinder and finally passes through the passage 23 through the valve casing 24 to the evaporator. Any dirt passing the filter will drop by gravity onto the deflector l8 and'the fluid will wash this dirt from the deflector into the bottom of the chamber H! where it can be removed whenever desired.
  • the fluid in the chamber l0 will of course act on the float t5 sothat one can see whether or not the chamber is full, empty or partly full by observing the float through the window 2%] after removing the cover 22.
  • This provides means whereby the operator servicing the system can readily tell when the tubing or lines to which the device is attached .are empty without opem'ng any valves or the like, thereby eliminating danger of odors from the escaping fluid and loss of fluid.
  • the stem I? of material that will corrode the corrosion of this stem will indicate that the fluid contains moisture and thus the drying material is not functioning properly.
  • the amount of liquid in the receiver or condenser can be ascertained by looking through the window 20.
  • This invention aids the service-man to service the job by sight instead of by guess work and by the use of gauges and eliminates disagreeable odors, loss of fluid and other objectionable features of servicing a refrigerating system in the usual way.
  • the device also shows the serviceman by sight whether dirt and moisture are collecting in the system and the proper amount of oil and fluid is flowing through.
  • the attachment can be located wherever desired in the system.
  • An attachment for a refrigerating system comprising a body having upper and lower chambers therein and a passage connecting the chambers together, that part of the body containing the lower chamber having a window therein, the upper chamber receiving the fluid from the system, a stem located in the lower chamber and having its upper end in communication with the passage, a float carried by the stem, .2. glass cylinder in the lower chamber, said stem having its lower end. terminating an appreciable distance above the lower end of the lower chamber and discharge means connected with the top of the lower chamber.
  • An attachment of the class described comprising a body having upper and lower chambers therein and a passage connecting the chambers together, the top of the upper chamber having an inlet .'the lower part of the body having a window therein for communication with the lower chamber, a glass cylinder in the lower chamber covering the window, a stem having its upper end in communication with the passage and its lower end spaced an appreciable distance from the lower end of the lower chamber, a floatcarried by the stem, means carried by the stem for limiting upward and downward movement of the float, a reflector in the bottom of the lower chamber located under the stem, discharge means connected with the top of the lower chamber, and a detachable cap connected with the lower part of the body and covering the window.
  • An attachment of the class described com prising a body having upper and lower chambers therein and a passage connecting the chambers together, the top of the upper chamber having an inlet, the lower part of the body having a window therein for communication with the lower chamber, a glass cylinder in the lower chamber covering the window, a stem having its upper end in communication with the passage and its lower end spaced an appreciable distance from the lower end of the lower chamber, a float carried by the stem, means carried by the stem for limiting upward and downward movement of the float, a reflector in the bottom of the lower chamber located under the stem, discharge means connected with the top of the lower chamber, a detachable cap connected with the lower part of the body and covering the window, said'discharge means including a valve casing, a manually operated valve for said casing, a tube carried by the casing, a pipe connected with the tube a removable fusible disk separating the tube from the pipe, and manually operated means for puncturing the disk.
  • An attachment for a refrigerating system comprising a body having upper and lower chambers'thereimthe upper chamber having an inlet, and an outlet for the top of the lower chamber, a conduit connecting the two chambers together, said'conduit including a stem extending into the lower chamber and formed of corrosive material,
  • the walls of the lower chamber having a window therein, a transparent member in the lower chamber extending across the window and a removable cap for closing the window.

Description

Oct. 29, 1935. E, LlNK 2,019,421
ATTACHMENT FOR REFRIGERATING SYSTEMS Filed Sept. 13, 1934 3 Sheets-Sheet 1 Inventor .Z? .771; 2 2$ M 1935- E. T. LINK 2,019,421
ATTACHMENT FOR REFRIGERATING SYSTEMS Filed Sept. 13, 1934 5 Sheets-Sheet 2 I fivento'r Attorney I Oct. 29, 1935. E. T. LINK I ATTACHMENT FOR REFRIGERATING SYSTEMS Filed Sept. 15, 1954 s Sheets-Sheet s j Inventor Patented Oct. 29, 1935 UNITED STATES FATE ATTACHLIENT FOR REFRIGERATING SYSTEMS Edgar T. Link, Allentown, Pa.
Application September 13, 1934, Serial No. 743,921
4 Claims.
This invention relates to an attachment for a refrigerating system, the general object of the invention being to provide means whereby the system can be easily serviced, and voided, with means for automatically voiding the system in case of fire.
This invention also consists in certain other features of construction and in the combination and arrangement of several parts, to be hereinafter fully described, illustrated in the accompanying drawings and specifically pointed out in the appended claims.
In describing the invention in detail, reference will be had to the accompanying drawings wherein like characters denote like or corresponding parts throughout the several views, and in which:
Fig. 1 is an elevation of the device.
Fig. 2 is a vertical sectional view thereof.
Fig. 3 is a section on line 33 of Fig. 2.
Fig. 4. is a section on line 4-4 of Fig. 2.
Fig. 5 is a view of the lower part of the pointed stem.
Fig. 6 is a view of the split ring for holding a filter screen in position.
Fig. '7 is a view of the screen.
Fig. 8 is a view of another part of the valve assembly.
In these drawings, the numeral I indicates the 30 body of the device which has a plug 2 closing its upper end, the plug being provided with a threaded hole 3 for receiving a line leading from the system. The upper part of the body forms a chamber 4 which contains the refrigerant drying 35 material 5, such as anhydrous calcium chloride. This material rests on a filter or screen disk 6 which in turn rests on a split ring I seated on a shoulder 8 formed at the bottom of the chamber, said bottom having a recess 9 therein of smaller 40 diameter than the chamber so as to provide the shoulder and this recess and the disk seated on the ring forms a space below the material 5. A smaller chamber I0 is formed in the lower part of the body and is separated from the first 45 chamber by a partition forming part II of the body which is provided with a centrally arranged passage I2 connecting the two chambers together. A tubular stem I3 has its upper end threaded in the lower end of the passage I2 and the bore of the stem forms a continuation of the passage I2 with the lower end of the stem spaced a considerable distance from the bottom of the chamber II'I. Flanges I4 are formed on the stem and act as stops for a float disk I5 which is preferably white so that it will readily be distinguished from by a part of the glass cylinder so that the stem 16 and the float and a portion of the interior of the chamber can be seen. The lower part of the body is of less diameter than the upper portion and an intermediate part is threaded as at 2I for I receiving the threaded upper end of a cap or cover 22 which covers the Window and prevents the glass cylinder from being broken so the cover can easily be removed when the parts are to be observed through the window. An outlet passage 23 extends from the top of the chamber Ill through a side portion of the part II, the outer end of the passage being enlarged and threaded to receive the threaded end of a Valve casing 24. This casing is adapted to be connected in any suitable manner to the evapo- 25 rator by its threaded outer end 25 and a valve 26 controls the bore of the casing, said valve having its stem 21 passing through a gland 23 and having a wrench engaging part 29 at its outer end. A tube 30 is connected with the valve casing and 30 a cap 3I connects the outer end of the tube with a pipe 33 and a disk 35 of fusible material normally closes communication between the tube 39 and the pipe 33 and if a fire occurs, this disk will melt and thus the refrigerating system will 35 be drained.
A stem 35 slidingly passes through the stem 21 and has a handle 36 threaded to its upper end and a threaded intermediate part of the stem 35 is threaded in a socket formed in the lower end of 40 the valve 28, as shown at 31, and the stem 35 carries a collar 38 having a gasket thereon for forming a fiuid tight connection with the lower end of the valve when the parts are in the position shown in Figure 2. The lower end of the stem 35 is pointed so that by unscrewing the stem 35 from the valve 28 and pressing upon the stem 35 it can be forced downwardly to cause its pointed end to puncture the disk 34 so that the system can be drained and by connecting thepipe 33 to a source of supply the system can be charged or this pipe 33 can be used for bypassing the fluid from one part of the system to another part. By lowering the valve 28 upon the seat formed at the upper end of the tube 30 the pipe 33 can be disconnected from the rest of the system.
As will be seen, the refrigerant fluid entering the device must first pass through the material 5 in the chamber 4 which will remove moisture and then pass through the filter 6 which removes dirt and then the fluid enters the passage l2 and flows through the stem into the chamber I0. As it passes from the stem, it strikes the reflector I8 carried by the washer l8 and then the fluid passes upwardly filling the cylinder and finally passes through the passage 23 through the valve casing 24 to the evaporator. Any dirt passing the filter will drop by gravity onto the deflector l8 and'the fluid will wash this dirt from the deflector into the bottom of the chamber H! where it can be removed whenever desired. The fluid in the chamber l0 will of course act on the float t5 sothat one can see whether or not the chamber is full, empty or partly full by observing the float through the window 2%] after removing the cover 22. This provides means whereby the operator servicing the system can readily tell when the tubing or lines to which the device is attached .are empty without opem'ng any valves or the like, thereby eliminating danger of odors from the escaping fluid and loss of fluid. By making the stem I? of material that will corrode, the corrosion of this stem will indicate that the fluid contains moisture and thus the drying material is not functioning properly. By raising the compressor at one end, the amount of liquid in the receiver or condenser can be ascertained by looking through the window 20.
This invention aids the service-man to service the job by sight instead of by guess work and by the use of gauges and eliminates disagreeable odors, loss of fluid and other objectionable features of servicing a refrigerating system in the usual way. The device also shows the serviceman by sight whether dirt and moisture are collecting in the system and the proper amount of oil and fluid is flowing through. The attachment can be located wherever desired in the system.
It is thought from the foregoing description that the advantages and novel features of the invention will be readily apparent.
It is to be understood that changes may be made in the construction and in the combination and arrangement of the several parts, provided that such changes fall within the scope of the appended claims.
I claim:
1. An attachment for a refrigerating system comprising a body having upper and lower chambers therein and a passage connecting the chambers together, that part of the body containing the lower chamber having a window therein, the upper chamber receiving the fluid from the system, a stem located in the lower chamber and having its upper end in communication with the passage, a float carried by the stem, .2. glass cylinder in the lower chamber, said stem having its lower end. terminating an appreciable distance above the lower end of the lower chamber and discharge means connected with the top of the lower chamber.
2. An attachment of the class described comprising a body having upper and lower chambers therein and a passage connecting the chambers together, the top of the upper chamber having an inlet .'the lower part of the body having a window therein for communication with the lower chamber, a glass cylinder in the lower chamber covering the window, a stem having its upper end in communication with the passage and its lower end spaced an appreciable distance from the lower end of the lower chamber, a floatcarried by the stem, means carried by the stem for limiting upward and downward movement of the float, a reflector in the bottom of the lower chamber located under the stem, discharge means connected with the top of the lower chamber, and a detachable cap connected with the lower part of the body and covering the window.
3. An attachment of the class described com prising a body having upper and lower chambers therein and a passage connecting the chambers together, the top of the upper chamber having an inlet, the lower part of the body having a window therein for communication with the lower chamber, a glass cylinder in the lower chamber covering the window, a stem having its upper end in communication with the passage and its lower end spaced an appreciable distance from the lower end of the lower chamber, a float carried by the stem, means carried by the stem for limiting upward and downward movement of the float, a reflector in the bottom of the lower chamber located under the stem, discharge means connected with the top of the lower chamber, a detachable cap connected with the lower part of the body and covering the window, said'discharge means including a valve casing, a manually operated valve for said casing, a tube carried by the casing, a pipe connected with the tube a removable fusible disk separating the tube from the pipe, and manually operated means for puncturing the disk.
4. An attachment for a refrigerating system comprising a body having upper and lower chambers'thereimthe upper chamber having an inlet, and an outlet for the top of the lower chamber, a conduit connecting the two chambers together, said'conduit including a stem extending into the lower chamber and formed of corrosive material,
afioatcarried by the stem, the walls of the lower chamber having a window therein, a transparent member in the lower chamber extending across the window and a removable cap for closing the window.
EDGAR 'T. LINK.
US743921A 1934-09-13 1934-09-13 Attachment for refrigerating systems Expired - Lifetime US2019421A (en)

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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2506806A (en) * 1947-02-01 1950-05-09 George D Metzger Moisture indicator
DE1085548B (en) * 1959-01-14 1960-07-21 Hansa Metallwerke Ag Device for drying the refrigerant in the liquid line of a compression refrigeration system
US3086392A (en) * 1963-04-23 Method of and apparatus for testing refrigerant systems
US3122001A (en) * 1962-10-25 1964-02-25 Ian F Lockhart Safety device for refrigeration system
US3138936A (en) * 1962-08-31 1964-06-30 Carrier Corp Fusible protector for a refrigeration system
US3464441A (en) * 1967-12-19 1969-09-02 Us Air Force Optical port for use in high velocity streams
US3752508A (en) * 1972-02-22 1973-08-14 Norgren Co C A Bowl guard connector
US3759062A (en) * 1972-05-17 1973-09-18 Virginia Chemicals Inc Receiver drier housing for automobile air conditioning systems
US4129997A (en) * 1977-08-12 1978-12-19 Kunkle Robert J Permanent refrigerant dehydrator
US20040144700A1 (en) * 2003-01-27 2004-07-29 Sullivan Paul Joseph Contaminant flushing device, system, and method, particularly suited for refrigeration system servicing
US20060016475A1 (en) * 2004-07-26 2006-01-26 Tgk Co., Ltd. Refrigerant relief device
US20150114478A1 (en) * 2013-10-28 2015-04-30 Pierre-François Jérôme Tavard Bursting Relief valve

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3086392A (en) * 1963-04-23 Method of and apparatus for testing refrigerant systems
US2506806A (en) * 1947-02-01 1950-05-09 George D Metzger Moisture indicator
DE1085548B (en) * 1959-01-14 1960-07-21 Hansa Metallwerke Ag Device for drying the refrigerant in the liquid line of a compression refrigeration system
US3138936A (en) * 1962-08-31 1964-06-30 Carrier Corp Fusible protector for a refrigeration system
US3122001A (en) * 1962-10-25 1964-02-25 Ian F Lockhart Safety device for refrigeration system
US3464441A (en) * 1967-12-19 1969-09-02 Us Air Force Optical port for use in high velocity streams
US3752508A (en) * 1972-02-22 1973-08-14 Norgren Co C A Bowl guard connector
US3759062A (en) * 1972-05-17 1973-09-18 Virginia Chemicals Inc Receiver drier housing for automobile air conditioning systems
US4129997A (en) * 1977-08-12 1978-12-19 Kunkle Robert J Permanent refrigerant dehydrator
US20040144700A1 (en) * 2003-01-27 2004-07-29 Sullivan Paul Joseph Contaminant flushing device, system, and method, particularly suited for refrigeration system servicing
US7033508B2 (en) * 2003-01-27 2006-04-25 Paul Joseph Sullivan Contaminant flushing device, system, and method, particularly suited for refrigeration system servicing
US20060016475A1 (en) * 2004-07-26 2006-01-26 Tgk Co., Ltd. Refrigerant relief device
US20150114478A1 (en) * 2013-10-28 2015-04-30 Pierre-François Jérôme Tavard Bursting Relief valve

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