US2537984A - Heat exchange apparatus - Google Patents

Heat exchange apparatus Download PDF

Info

Publication number
US2537984A
US2537984A US540024A US54002444A US2537984A US 2537984 A US2537984 A US 2537984A US 540024 A US540024 A US 540024A US 54002444 A US54002444 A US 54002444A US 2537984 A US2537984 A US 2537984A
Authority
US
United States
Prior art keywords
tubular member
elements
hub
hubs
pair
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
US540024A
Inventor
Frisch Martin
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.)
Foster Wheeler Inc
Original Assignee
Foster Wheeler 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 Foster Wheeler Inc filed Critical Foster Wheeler Inc
Priority to US540024A priority Critical patent/US2537984A/en
Application granted granted Critical
Publication of US2537984A publication Critical patent/US2537984A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/15—Making tubes of special shape; Making tube fittings
    • B21C37/22—Making finned or ribbed tubes by fixing strip or like material to tubes
    • B21C37/24—Making finned or ribbed tubes by fixing strip or like material to tubes annularly-ribbed tubes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
    • F28F1/24—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely
    • F28F1/30—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely the means being attachable to the element

Definitions

  • This invention relates to heat exchange apparatus having'tubular members, and more particularly pertains to extended surfaces for the tubular members thereof.
  • the invention provides novel arrangements of extended surface elements on a tubular member and novel methods of securing the elements to the member.
  • Fig. l is a view in elevation, with parts in section, ofpart of a tubular member having extended surface elements arranged thereon and secured thereto in accordance with the invention.
  • Fig. 2 is a perspective view on a reduced scale of one of the extended surface elements shown in Fig. 1.
  • Fig. 3 is a view similar to Fig. 1, showing another arrangement of elements thereon, and
  • Fig. 4 is a view similar to Fig. 2 but of an extended surface member having a plurality of radia ly extending projections.
  • reference character It! designates a tubular member provided with extended surface elements ll of the type shown in Fig. 2.
  • Each element consists of a hub I2 and an annular flange l3 .which is integral with the hub at one end thereof, and extends transversely to the axis of the tubular member on which the element is mounted.
  • the elements ii are arranged on the tubular member in pairs, designated It, with the hubs H of each pair in abutment at their outer ends, or with the hubs included between the flanges l3 of each pair, either in contact as shown in Fig. 1, or in slightly spaced relationship.
  • the axial length of the hub of each element I I need only be half the distance the flanges l3 are spaced on the tubular member, instead of a length equal to the entire distance between the flanges which would be required if the elements were arranged with their hubs all extending in the same direction. This is advan- 5 Claims. (01.
  • the pairs H of elements are spaced apart by annular spacers l5 which fit the tubular member iii and are in engagement at their ends with the 2 a flanges it of the adjacent elements.
  • the spacers I! have an axial length sui'iicient to space apart the pairs it the same distance the elements of each pair are spaced, so that all the elements on the tubular member will be spaced equally.
  • the spacers l5 also function as protecting rings for the tubular members.
  • the elements Ii preferably are secured to the tubular member by electric resistance seam welding, by the welding of the outer or the adjacent end portions of the hubs of each pair of elements H to the tubular member simultaneously.
  • This may be accomplished by the use of a welding wheel having a width at its outer periphery in a direction parallel to the axis of the wheel, which is suflicient to engage simultaneously the outer end portions of the hubs I! of each pair of elements I4, and to effect the welding of these portions of the hubs to the tubular member at the same time, to make a seam weld i6.
  • the hubs of each pair of elements are welded together as well as being welded to the tubular member.
  • the spacers and protecting rings II also are welded to the tubular member as indicated at H, by the use of a welding wheel, but the welding .or other securing means may be omitted, if desired.
  • Fig. 3 the elements are positioned on the tubular member in pairs I8 with the flanges of adjacent pairs in contact, and with the'hubs of each pair in abutment and welded to the tubular member and to each other as indicated at 18, preferably in the manner described for the making of the welds 16.
  • spacers such as the spacers l5 of Fig. 1, are not required.
  • the ends of adjacent hubs may be spaced apart somewhat, if desired.
  • hubs of the extended surface elements and the spacers to the tubular members may be secured by soldering or brazing.
  • the flanges of the extended surface elements may be of any desired configuration.
  • they may consist of a plurality of radially extending projections, with all the projections in the same plane, as disclosed in Fig. 4 of the drawing. If the arrangement of Fig. 3 hereof is employed with elements having radially extending projections such as are disclosed in Fig. 4, the projections on the flanges which are in contact preferably should be disposed in staggered relationship to increase the turbulence of the medium flowing in contact with these projections, and the heat transfer rate.
  • Heat exchange apparatus comprising a tubular member with extended-surface elements thereon, the. elements having a tubular hub mounted .on said member, the hub extending axially of and surrounding the tubular member with the inner peripheral surface of the hub engaging the outer peripheral surface of the tubular member, and a single solid flange member projecting outwardly of the hub at one peripheral end thereof, the extended surface elements being so disposed on the tubular member that the end opposite said one end of the hub of an element is in abutment with the end opposite said one end of the hub of an adjacent element, the adjacent hubs being welded together at said abutting ends and to the tubular member, the single solid flange member of adjacent elements pro iecting outwardly at said one end of the ad acent hubs in spaced relationship to one another throu hout their length.
  • Heat exchange apparatus comprising a tubular member /.with extended surface elements thereon. the elements having a tubular hub mounted on said member, the hub extending axially of and surrounding the tubular member with the inner peripheral surface of the hub engaging the outer peripheral surface of the tubular member, and a single solid flange member projecting outwardly of the hub at one peripheral end thereof, the extended surface elements being arranged in pairs and so disposed on the tubular member that the end opposite said one end of the hub of one element of said pair is in abutment with the end opposite said one end of the hub of the other element of said pair, the hubs of said pair being welded'together at said abutting ends and to the tubular member, the single solid flange member of adjacent elements projecting outwardly at said one end of the adjacent hubs in spaced relationship to one another throughout their length.
  • Heat exchange apparatus comprising a tubular member with extended surfaceelements thereon. the elements having a tubular hub 'mounted on said member, the hub extending axially of and surrounding the tubular member with the inner peripheral surface of the hub engaging the outer peripheral surface of the tubular member, a single solid flange member projecting outwardly of the hub at one peripheral end thereof, the extended surface elements being arranged in pairs and so disposed on the tubular member that the end opposite said one end of the hub of one element of said pair is in abutment with the end opposite said one end of the hub of the other element of said pair, the single solid flange member of adjacent elements projecting outwardly at said one end of the adjacent hubs in spaced relationship to one another throughout their length, and tubular spacers on the tubular member between adjacent pairs of elements.
  • Heat exchange apparatus comprising a tu- 4 bular member with extended surface elements thereon, the elements having a tubular hub mounted on said member, the hub extending axially of and surrounding the tubular member with the inner peripheral surface of the hub ongaging the outer peripheral surface of the tubular member, a single solid flange member projecting outwardly of the hub at one peripheral end thereof, the extended surface elements being arranged in pairs and so disposed on the tubular member that the end opposite said one end of the hub of one element of said pair is in abutment with the end opposite said one end of the hub 01' the other element of said pair, the hubs of said pair being welded together at said abutting ends and to the tubular member, the single solid flange member of adjacent elements projecting outwardly at said one end of the adjacent hubs in spaced relationship to one another throughout their length, and tubular spacers welded onto the tubular member between adjacent pairs of elements.
  • Heat exchange apparatus comprising a tubular member with extended surface elements thereon, the elements having a tubular hub mounted on said member, the hub extending axially of and surrounding the tubular member with the inner peripheral surface of the hub engaging the outer peripheral surface of the tubular member, a single solid flange member projecting outwardly of the hub at one peripheral end thereof, the extended surface elements being ar-.
  • the hubs of said pair being welded together at said abutting ends and to the tubular member, the single solid flange member of adjacent elements projecting outwardly at said one end of the adjacent hubs at a right angle to the longitudinal axis of the hub and tubular member, andtubular spacers welded onto the tubular member between adjacent pairs of elements, the spacers being of an axial length substantially equal to the distance between the flange members of said pair of elements.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • General Details Of Gearings (AREA)

Description

Jan. 16, 1951 M. FRISCH HEAT EXCHANGE APPARATUS Filed June 13, 1944 /5 INVENTOR MART/N FQ/SCH ATTORNEY Patented Jan. l6, 1951 Martin Frisch, New York, N. Y., minor to Foster Wheeler Corporation, New York, N. Y., a corporation oi New York Application June 13, 1944, Serial No. 540,024
This invention relates to heat exchange apparatus having'tubular members, and more particularly pertains to extended surfaces for the tubular members thereof.
The invention provides novel arrangements of extended surface elements on a tubular member and novel methods of securing the elements to the member.
The invention will be understood from the following description when considered in connection with the accompanying drawing formin a part thereof. and in which:
Fig. l is a view in elevation, with parts in section, ofpart of a tubular member having extended surface elements arranged thereon and secured thereto in accordance with the invention.
Fig. 2 is a perspective view on a reduced scale of one of the extended surface elements shown in Fig. 1.
Fig. 3 is a view similar to Fig. 1, showing another arrangement of elements thereon, and
Fig. 4 is a view similar to Fig. 2 but of an extended surface member having a plurality of radia ly extending projections.
Referring to Figs. 1 and 2 of the drawing. reference character It! designates a tubular member provided with extended surface elements ll of the type shown in Fig. 2. Each element consists of a hub I2 and an annular flange l3 .which is integral with the hub at one end thereof, and extends transversely to the axis of the tubular member on which the element is mounted.
In Fig. l, the elements ii are arranged on the tubular member in pairs, designated It, with the hubs H of each pair in abutment at their outer ends, or with the hubs included between the flanges l3 of each pair, either in contact as shown in Fig. 1, or in slightly spaced relationship. With this arrangement, the axial length of the hub of each element I I need only be half the distance the flanges l3 are spaced on the tubular member, instead of a length equal to the entire distance between the flanges which would be required if the elements were arranged with their hubs all extending in the same direction. This is advan- 5 Claims. (01. 257-26216) tageous because the difficulty of pressing or forming the'hub from the disk is reduced materially since the metal does not have to be drawn out or thinned as much with the result that the possibility of producing cracks is diminished and a' greater metal cross-section is provided in the hub for the flow of heat to the tubular member.
The pairs H of elements are spaced apart by annular spacers l5 which fit the tubular member iii and are in engagement at their ends with the 2 a flanges it of the adjacent elements. Preferably, the spacers I! have an axial length sui'iicient to space apart the pairs it the same distance the elements of each pair are spaced, so that all the elements on the tubular member will be spaced equally. The spacers l5 also function as protecting rings for the tubular members.
The elements Ii preferably are secured to the tubular member by electric resistance seam welding, by the welding of the outer or the adjacent end portions of the hubs of each pair of elements H to the tubular member simultaneously. This may be accomplished by the use of a welding wheel having a width at its outer periphery in a direction parallel to the axis of the wheel, which is suflicient to engage simultaneously the outer end portions of the hubs I! of each pair of elements I4, and to effect the welding of these portions of the hubs to the tubular member at the same time, to make a seam weld i6. With this method, the hubs of each pair of elements are welded together as well as being welded to the tubular member.
As shown, the spacers and protecting rings II also are welded to the tubular member as indicated at H, by the use of a welding wheel, but the welding .or other securing means may be omitted, if desired.
In Fig. 3, the elements are positioned on the tubular member in pairs I8 with the flanges of adjacent pairs in contact, and with the'hubs of each pair in abutment and welded to the tubular member and to each other as indicated at 18, preferably in the manner described for the making of the welds 16. With this arrangement, spacers such as the spacers l5 of Fig. 1, are not required. The ends of adjacent hubs: may be spaced apart somewhat, if desired.
In lieu of welding the hubs of the extended surface elements and the spacers to the tubular members, they may be secured by soldering or brazing.
'The flanges of the extended surface elements may be of any desired configuration. For example, they may consist of a plurality of radially extending projections, with all the projections in the same plane, as disclosed in Fig. 4 of the drawing. If the arrangement of Fig. 3 hereof is employed with elements having radially extending projections such as are disclosed in Fig. 4, the projections on the flanges which are in contact preferably should be disposed in staggered relationship to increase the turbulence of the medium flowing in contact with these projections, and the heat transfer rate.
The forms of the invention disclosed are to be considered as preferred forms, and the invention is not to be limited excepting by the scope of the appended claims.
What is claimed is: I a
1. Heat exchange apparatus comprising a tubular member with extended-surface elements thereon, the. elements having a tubular hub mounted .on said member, the hub extending axially of and surrounding the tubular member with the inner peripheral surface of the hub engaging the outer peripheral surface of the tubular member, and a single solid flange member projecting outwardly of the hub at one peripheral end thereof, the extended surface elements being so disposed on the tubular member that the end opposite said one end of the hub of an element is in abutment with the end opposite said one end of the hub of an adjacent element, the adjacent hubs being welded together at said abutting ends and to the tubular member, the single solid flange member of adjacent elements pro iecting outwardly at said one end of the ad acent hubs in spaced relationship to one another throu hout their length.
2. Heat exchange apparatus comprising a tubular member /.with extended surface elements thereon. the elements having a tubular hub mounted on said member, the hub extending axially of and surrounding the tubular member with the inner peripheral surface of the hub engaging the outer peripheral surface of the tubular member, and a single solid flange member projecting outwardly of the hub at one peripheral end thereof, the extended surface elements being arranged in pairs and so disposed on the tubular member that the end opposite said one end of the hub of one element of said pair is in abutment with the end opposite said one end of the hub of the other element of said pair, the hubs of said pair being welded'together at said abutting ends and to the tubular member, the single solid flange member of adjacent elements projecting outwardly at said one end of the adjacent hubs in spaced relationship to one another throughout their length.
3. Heat exchange apparatus comprising a tubular member with extended surfaceelements thereon. the elements having a tubular hub 'mounted on said member, the hub extending axially of and surrounding the tubular member with the inner peripheral surface of the hub engaging the outer peripheral surface of the tubular member, a single solid flange member projecting outwardly of the hub at one peripheral end thereof, the extended surface elements being arranged in pairs and so disposed on the tubular member that the end opposite said one end of the hub of one element of said pair is in abutment with the end opposite said one end of the hub of the other element of said pair, the single solid flange member of adjacent elements projecting outwardly at said one end of the adjacent hubs in spaced relationship to one another throughout their length, and tubular spacers on the tubular member between adjacent pairs of elements. V
4. Heat exchange apparatus comprising a tu- 4 bular member with extended surface elements thereon, the elements having a tubular hub mounted on said member, the hub extending axially of and surrounding the tubular member with the inner peripheral surface of the hub ongaging the outer peripheral surface of the tubular member, a single solid flange member projecting outwardly of the hub at one peripheral end thereof, the extended surface elements being arranged in pairs and so disposed on the tubular member that the end opposite said one end of the hub of one element of said pair is in abutment with the end opposite said one end of the hub 01' the other element of said pair, the hubs of said pair being welded together at said abutting ends and to the tubular member, the single solid flange member of adjacent elements projecting outwardly at said one end of the adjacent hubs in spaced relationship to one another throughout their length, and tubular spacers welded onto the tubular member between adjacent pairs of elements.
5. Heat exchange apparatus comprising a tubular member with extended surface elements thereon, the elements having a tubular hub mounted on said member, the hub extending axially of and surrounding the tubular member with the inner peripheral surface of the hub engaging the outer peripheral surface of the tubular member, a single solid flange member projecting outwardly of the hub at one peripheral end thereof, the extended surface elements being ar-. ranged in pairs and so disposed on the tubular member that the end opposite said one end of the hub of one element of said pair is in abutment with the end opposite said one end of the hub of the other element of said pair, the hubs of said pair being welded together at said abutting ends and to the tubular member, the single solid flange member of adjacent elements projecting outwardly at said one end of the adjacent hubs at a right angle to the longitudinal axis of the hub and tubular member, andtubular spacers welded onto the tubular member between adjacent pairs of elements, the spacers being of an axial length substantially equal to the distance between the flange members of said pair of elements.
MARTIN FRISCH.
REFERENCES CITED The following references are of record in the file of this patent:
UNITED STATES PATENTS Number Name Date 785,081 Brinkman Mar. 21, 1905 1,800,448 Henshall Apr. 14, 1931 1,827,025 Larmer et al Oct. 13, 1931 1,943,557 Ruthenburg et al. Jan. 16, 1934 r 1,956,617 Jafie May 1, 1934 2,201,024 Brown May 14, 1940 2,204,332 Trent June 11, 1940 2,307,355 Bredeson Jan. 5,1943
FOREIGN PA'I'ENIS Number Country Date 607,459 France Mar. 27, 1926 265,698 Germany Mar. 16. 1913
US540024A 1944-06-13 1944-06-13 Heat exchange apparatus Expired - Lifetime US2537984A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US540024A US2537984A (en) 1944-06-13 1944-06-13 Heat exchange apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US540024A US2537984A (en) 1944-06-13 1944-06-13 Heat exchange apparatus

Publications (1)

Publication Number Publication Date
US2537984A true US2537984A (en) 1951-01-16

Family

ID=24153666

Family Applications (1)

Application Number Title Priority Date Filing Date
US540024A Expired - Lifetime US2537984A (en) 1944-06-13 1944-06-13 Heat exchange apparatus

Country Status (1)

Country Link
US (1) US2537984A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE929521C (en) * 1953-03-06 1955-06-27 Eduard Dipl-Ing Schmieg Finned tube
US2713997A (en) * 1950-09-01 1955-07-26 Ruckstell Corp Engine cooling fin assembly
US4256177A (en) * 1978-11-09 1981-03-17 Modine Manufacturing Company Heat exchanger
EP0252019A1 (en) * 1986-05-15 1988-01-07 Gaetano Piazzola Assemblable modular element heat exchanger
US5582246A (en) * 1995-02-17 1996-12-10 Heat Pipe Technology, Inc. Finned tube heat exchanger with secondary star fins and method for its production
US6681842B2 (en) * 2001-12-03 2004-01-27 Agilent Technologies, Inc. Cooling apparatus
US20140020880A1 (en) * 2012-07-18 2014-01-23 Fab Tek Logic, Llc Removable radiator fin assembly
US20170097193A1 (en) * 2015-10-01 2017-04-06 Vent-Rite Valve Corporation Baseboard radiator systems, components, and methods for installing
US20170261271A1 (en) * 2012-07-18 2017-09-14 Fab Tek Logic, Llc Removable heatsink fin assembly

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE265698C (en) *
US785081A (en) * 1904-07-23 1905-03-21 Whitlock Coil Pipe Company Radiator for motor-vehicles.
FR607459A (en) * 1924-12-06 1926-07-02 Zimmermann & Weyel G M B H Method of construction of fins for finned pipes for heat exchangers
US1800448A (en) * 1927-01-25 1931-04-14 John J Nesbitt Inc Radiator
US1827025A (en) * 1927-10-08 1931-10-13 Claude D Larmer Sectional automobile radiator
US1943557A (en) * 1932-06-13 1934-01-16 Copeland Products Inc Heat exchange device
US1956617A (en) * 1932-10-19 1934-05-01 Sears Roebuck & Co Radiator
US2201024A (en) * 1938-06-07 1940-05-14 Jr John W Brown Method of making heat transfer pipe
US2204332A (en) * 1937-04-05 1940-06-11 Harold E Trent Vane type heater
US2307355A (en) * 1941-03-03 1943-01-05 Albert O Bredeson Applying fins to radiator tubes

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE265698C (en) *
US785081A (en) * 1904-07-23 1905-03-21 Whitlock Coil Pipe Company Radiator for motor-vehicles.
FR607459A (en) * 1924-12-06 1926-07-02 Zimmermann & Weyel G M B H Method of construction of fins for finned pipes for heat exchangers
US1800448A (en) * 1927-01-25 1931-04-14 John J Nesbitt Inc Radiator
US1827025A (en) * 1927-10-08 1931-10-13 Claude D Larmer Sectional automobile radiator
US1943557A (en) * 1932-06-13 1934-01-16 Copeland Products Inc Heat exchange device
US1956617A (en) * 1932-10-19 1934-05-01 Sears Roebuck & Co Radiator
US2204332A (en) * 1937-04-05 1940-06-11 Harold E Trent Vane type heater
US2201024A (en) * 1938-06-07 1940-05-14 Jr John W Brown Method of making heat transfer pipe
US2307355A (en) * 1941-03-03 1943-01-05 Albert O Bredeson Applying fins to radiator tubes

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2713997A (en) * 1950-09-01 1955-07-26 Ruckstell Corp Engine cooling fin assembly
DE929521C (en) * 1953-03-06 1955-06-27 Eduard Dipl-Ing Schmieg Finned tube
US4256177A (en) * 1978-11-09 1981-03-17 Modine Manufacturing Company Heat exchanger
EP0252019A1 (en) * 1986-05-15 1988-01-07 Gaetano Piazzola Assemblable modular element heat exchanger
US5582246A (en) * 1995-02-17 1996-12-10 Heat Pipe Technology, Inc. Finned tube heat exchanger with secondary star fins and method for its production
US6681842B2 (en) * 2001-12-03 2004-01-27 Agilent Technologies, Inc. Cooling apparatus
US20140020880A1 (en) * 2012-07-18 2014-01-23 Fab Tek Logic, Llc Removable radiator fin assembly
US9605909B2 (en) * 2012-07-18 2017-03-28 Fab Tek Logic, Llc Removable radiator fin assembly
US20170261271A1 (en) * 2012-07-18 2017-09-14 Fab Tek Logic, Llc Removable heatsink fin assembly
US10281221B2 (en) * 2012-07-18 2019-05-07 Fab Tek Logic, Llc Removable heatsink fin assembly
US20170097193A1 (en) * 2015-10-01 2017-04-06 Vent-Rite Valve Corporation Baseboard radiator systems, components, and methods for installing

Similar Documents

Publication Publication Date Title
US2930405A (en) Tube with internal fins and method of making same
US2537984A (en) Heat exchange apparatus
US2692763A (en) Supporting spacer for annular corrugated fins
US2565296A (en) Welded expansible bellows
US2737370A (en) Extended surface element for heat exchanger
US3001767A (en) Tubular structure
US2400737A (en) Finned tube
US2261136A (en) Heat exchange conductor
US2801071A (en) Bladed rotor construction
US2261137A (en) Heat exchange conductor
US2337584A (en) Heat exchange tube
US2722048A (en) Method of making heat exchangers
US2475604A (en) Heat exchange apparatus
US2418619A (en) Finned tube
US3139679A (en) Method for forming heat-exchange devices
US1767652A (en) Tube assembly for heat-transfer devices
US1511291A (en) Wheel hub
US2160029A (en) Sectional brush
US1999246A (en) Radiator
US2162088A (en) Steering wheel
US2161898A (en) Finned tube and method for forming the same
US2183757A (en) Flue tube for steam boilers
US2485088A (en) Heat exchanger reinforcing means
US2032445A (en) Superheater unit support
GB901321A (en) Improvements in or relating to finned tubes for heat-exchangers