US3157449A - Electrical connectors - Google Patents
Electrical connectors Download PDFInfo
- Publication number
- US3157449A US3157449A US186699A US18669962A US3157449A US 3157449 A US3157449 A US 3157449A US 186699 A US186699 A US 186699A US 18669962 A US18669962 A US 18669962A US 3157449 A US3157449 A US 3157449A
- Authority
- US
- United States
- Prior art keywords
- conductive members
- sleeve
- insulating body
- insulating
- members
- 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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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/46—Bases; Cases
- H01R13/502—Bases; Cases composed of different pieces
- H01R13/5025—Bases; Cases composed of different pieces one or more pieces being of resilient material
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- 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
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S174/00—Electricity: conductors and insulators
- Y10S174/08—Shrinkable tubes
-
- 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
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S439/00—Electrical connectors
- Y10S439/932—Heat shrink material
-
- 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
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/49117—Conductor or circuit manufacturing
- Y10T29/49204—Contact or terminal manufacturing
- Y10T29/49208—Contact or terminal manufacturing by assembling plural parts
- Y10T29/49222—Contact or terminal manufacturing by assembling plural parts forming array of contacts or terminals
-
- 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
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49826—Assembling or joining
- Y10T29/49863—Assembling or joining with prestressing of part
- Y10T29/49865—Assembling or joining with prestressing of part by temperature differential [e.g., shrink fit]
Definitions
- the objects of the present invention are directed toward the provision of improved electrical connectors which can be made as small and fragile as required while retaining ample ruggedness and durability.
- a connector embodying the invention includes first and second mating parts, each of which includes an insulating body and electrical contact means, the respective contact means being adapted to make contact with each other to eiiect the desired connection.
- a sleeve of resilient insulating material is fitted over the first mating part with a portion engaging the insulating body thereof, and the remainder extending axially beyond the end of the insulating body and surrounding preferably the entire length of the electrical contact means carried thereby.
- This extension of the sleeve is thus adapted to surround a considerable portion of the second part as it is brought into engagement with the first part when a connection is made.
- the sleeve acts as a guide for the second part as it engages the first and, in addition, holds both parts securely with respect to each other when they engage each other.
- the insulating sleeve is of such material that the portion which surrounds and engages the insulating body of the first connector part can be treated to shrink and harden it to provide a rugged tight fit, while the extension portion which acts as a guide for the second mating part is allowed to retain its resilience.
- FIG. 1 is a perspective view of a connector arrangement embodying the invention and a portion of a typical piece of apparatus with which it may be used;
- FIG. 2 is a perspective View of the connector apparatus of the invention showing the connector parts assembled.
- a connector arrangement embodying the invention and shown in the drawing includes a first mating member which comprises a body of insulating material of any suitable size and shape.
- the body carries electrical contact members 26 which extend longitudinally through the body and include a first external portion 30 which is adapted to be permanently secured by welding, riveting, or the like to a portion of the associated electronic circuit 34.
- the contact members 26 include a second portion 36 which is generally in the form of a rod or pin and is adapted to make electrical contact with a second similar member 42 having corresponding mating parts.
- the second member 42 for use with the first member shown also comprises an insulating body 48 having electrical contact members 52 which are embedded in the body and are adapted to receive the contact members 26 of the first member 16.
- the contact members include external portions 56 similar to the portions of the first mernber to which external electrical connection may be made.
- the contact members 26 might be just a few millimeters in diameter, and the insulating body 20 would be just large enough to receive the contact members. Accordingly, when the first and second mating members 16 and 42 are assembled to provide an electrical connection, it is relatively easy for one part to rotate or move laterally with respect to the other because of the small size and fragility of the contact members. In addition, since the insulating bodies 20 and 48- are only large enough to accommodate the contact members 26 and 52, securing pins or keys, or the like cannot be readily provided.
- connection assembly is improved and rendered strong and rugged by means of a sleeve 66 of resilient synthetic resinous material which is fitted over one of the connector members, preferably member 16, the one which is to be permanently secured to a fixed electrical circuit element.
- the sleeve 66 is of sufiicient length so that it engages and surrounds the insulating body 20 of the connector member and extends longitudinally so that it surrounds portions 36 of the contact members 26 which are to be engaged by the second mating member 42.
- the sleeve 66 is of a material which can be treated, for example, by the application of heat, to cause it to shrink and harden.
- One such material is sold by Amp, Inc. under the trademark Ampsulation and comprises polyvinyl chloride.
- the sleeve 66 of resilient material After the sleeve 66 of resilient material is positioned on the first connector member 16, heat is applied locally to the portion thereof which surrounds the insulating body 20. This portion of the sleeve contracts and hardens to provide a tight, rugged fit with the member 16.
- the portion 66' of the sleeve which extends longitudinally and surrounds the electrical contact member or pins 36 remains resilient and provides a guide for receiving the second connector member 42 when it is desired to connect the two members together.
- the degree of shrinkage of the sleeve 66 depends on several factors including the size relationship between the sleeve and the connector member 16, the thickness of the sleeve, etc. Thus, under some circumstances, the visual shrinkage of the sleeve may be relatively small.
- Electrical connection means including a first insulating body having first conductive members extending unsupported therefrom,
- said conductive members being fragile and movable
- a second insulating body having conductive members embedded therein and adapted to engage the conductive members extending from said first body
- said sleeve including a first hard, shrunken, rigid portion surrounding said insulating body and a second flexible, larger diameter portion surrounding the conduc- 0 L tive members of said first body and adapted to easily sulating body are hollow tubes adapted to receive said receive said second insulating body whereby the conpins.
Landscapes
- Connector Housings Or Holding Contact Members (AREA)
Description
Nov. 17, 1964 w. M. HENNESSEY ELECTRICAL CONNECTORS Filed April 11, 1962 SHRUNK AND HARDENED INVENTOR. WILLIAM M. HENNESSEY ATTORNEY United States Patent Oflice 3,157,449 Patented Nov. 17, 1964 3,157,449 ELECTRICAL CONNECTORS William M. Hennessey, Roslyn, Pa, assignor to Burroughs Corporation, Detroit, Mich, a corporation of Michigan Filed Apr. 11, 1962, Ser. No. 186,699 2 Claims. (Cl. 339-66) This invention relates to electrical connectors and particularly to miniaturized electrical connectors.
The modern trend in miniaturization of electronic components has created special problems in electrical connectors which have been reduced in size and Weight to the point where they comprise thin, fragile bodies of insulating material which carry exceedingly fragile electrical contact members. Because of the small size of the parts and because of their fragility, there not presently available a strong, rugged connector assembly which is capable of being made and broken many times as required, for example, in testing electronic apparatus during assembly. Under some circumstances, for example in magnetic core memory assemblies made up of many memory planes, a very expensive memory unit can be rendered worthless by a connector which is broken during testing of one of the planes.
Accordingly, the objects of the present invention are directed toward the provision of improved electrical connectors which can be made as small and fragile as required while retaining ample ruggedness and durability.
Briefly, a connector embodying the invention includes first and second mating parts, each of which includes an insulating body and electrical contact means, the respective contact means being adapted to make contact with each other to eiiect the desired connection. A sleeve of resilient insulating material is fitted over the first mating part with a portion engaging the insulating body thereof, and the remainder extending axially beyond the end of the insulating body and surrounding preferably the entire length of the electrical contact means carried thereby. This extension of the sleeve is thus adapted to surround a considerable portion of the second part as it is brought into engagement with the first part when a connection is made. Thus, the sleeve acts as a guide for the second part as it engages the first and, in addition, holds both parts securely with respect to each other when they engage each other.
The insulating sleeve is of such material that the portion which surrounds and engages the insulating body of the first connector part can be treated to shrink and harden it to provide a rugged tight fit, while the extension portion which acts as a guide for the second mating part is allowed to retain its resilience.
The invention is described in greater detail by reference to the drawing wherein:
FIG. 1 is a perspective view of a connector arrangement embodying the invention and a portion of a typical piece of apparatus with which it may be used; and
FIG. 2 is a perspective View of the connector apparatus of the invention showing the connector parts assembled.
A connector arrangement embodying the invention and shown in the drawing includes a first mating member which comprises a body of insulating material of any suitable size and shape. The body carries electrical contact members 26 which extend longitudinally through the body and include a first external portion 30 which is adapted to be permanently secured by welding, riveting, or the like to a portion of the associated electronic circuit 34. The contact members 26 include a second portion 36 which is generally in the form of a rod or pin and is adapted to make electrical contact with a second similar member 42 having corresponding mating parts.
The second member 42 for use with the first member shown also comprises an insulating body 48 having electrical contact members 52 which are embedded in the body and are adapted to receive the contact members 26 of the first member 16. The contact members include external portions 56 similar to the portions of the first mernber to which external electrical connection may be made.
In a typical construction, the contact members 26 might be just a few millimeters in diameter, and the insulating body 20 would be just large enough to receive the contact members. Accordingly, when the first and second mating members 16 and 42 are assembled to provide an electrical connection, it is relatively easy for one part to rotate or move laterally with respect to the other because of the small size and fragility of the contact members. In addition, since the insulating bodies 20 and 48- are only large enough to accommodate the contact members 26 and 52, securing pins or keys, or the like cannot be readily provided. According to the invention, the connection assembly is improved and rendered strong and rugged by means of a sleeve 66 of resilient synthetic resinous material which is fitted over one of the connector members, preferably member 16, the one which is to be permanently secured to a fixed electrical circuit element. The sleeve 66 is of sufiicient length so that it engages and surrounds the insulating body 20 of the connector member and extends longitudinally so that it surrounds portions 36 of the contact members 26 which are to be engaged by the second mating member 42. The sleeve 66 is of a material which can be treated, for example, by the application of heat, to cause it to shrink and harden. One such material is sold by Amp, Inc. under the trademark Ampsulation and comprises polyvinyl chloride.
After the sleeve 66 of resilient material is positioned on the first connector member 16, heat is applied locally to the portion thereof which surrounds the insulating body 20. This portion of the sleeve contracts and hardens to provide a tight, rugged fit with the member 16. The portion 66' of the sleeve which extends longitudinally and surrounds the electrical contact member or pins 36 remains resilient and provides a guide for receiving the second connector member 42 when it is desired to connect the two members together.
The degree of shrinkage of the sleeve 66 depends on several factors including the size relationship between the sleeve and the connector member 16, the thickness of the sleeve, etc. Thus, under some circumstances, the visual shrinkage of the sleeve may be relatively small.
With the resilient portion 66 of guide sleeve 66 surrounding the contact pins 36, the desired connection of the two parts may be made and broken substantially any number of times without danger of the parts rotating or moving laterally with respect to each other and thus becoming broken.
It is clear that various modifications may be made in the specific apparatus shown within the scope of the invention. For example, it is clear that other types of connectors than those specifically shown in the drawing may be provided with resilient guide sleeves in the manner described above.
What is claimed is:
l. Electrical connection means including a first insulating body having first conductive members extending unsupported therefrom,
said conductive members being fragile and movable,
a second insulating body having conductive members embedded therein and adapted to engage the conductive members extending from said first body,
and a sleeve of insulating material surrounding and enclosing said first insulating body and the conductive members extending therefrom,
said sleeve including a first hard, shrunken, rigid portion surrounding said insulating body and a second flexible, larger diameter portion surrounding the conduc- 0 L tive members of said first body and adapted to easily sulating body are hollow tubes adapted to receive said receive said second insulating body whereby the conpins.
ductive members of said second body may engage the conductive members of said second body and said References Cited In the file of thls patent second flexible portion of said sleeve holds said sec- 5 UNITED STATES PATENTS ond insulating body in place. 2,410,321 Watts Oct. 29, 1946 2. The apparatus defined in claim 1 wherein said con- 2,883,520 Sasserson Apr. 21, 1959 ductive members extending from said first insulating body 2,95 8,844 Smith et al. Nov. 1, 1960 are pins and said conductive members in said second in- 3,020,516 Despard Feb. 6, 1962
Claims (1)
1. ELECTRICAL CONNECTION MEANS INCLUDING A FIRST INSULATING BODY HAVING FIRST CONDUCTIVE MEMBERS EXTENDING UNSUPPORTED THEREFROM, SAID CONDUCTIVE MEMBERS BEING FRAGILE AND MOVABLE, A SECOND INSULATING BODY HAVING CONDUCTIVE MEMBERS EMBEDDED THEREIN AND ADAPTED TO ENGAGE THE CONDUCTIVE MEMBERS EXTENDING FROM SAID FIRST BODY, AND A SLEEVE OF INSULATING MATERIAL SURROUNDING AND ENCLOSING SAID FIRST INSULATING BODY AND THE CONDUCTIVE MEMBERS EXTENDING THEREFROM, SAID SLEEVE INCLUDING A FIRST HARD, SHRUNKEN, RIGID PORTION SURROUNDING SAID INSULATING BODY AND A SECOND FLEXIBLE, LARGER DIAMETER PORTION SURROUNDING THE CONDUCTIVE MEMBERS OF SAID FIRST BODY AND ADAPTED TO EASILY RECEIVE SAID SECOND INSULATING BODY WHEREBY THE CONDUCTIVE MEMBERS OF SAID SECOND BODY MAY ENGAGE THE CONDUCTIVE MEMBERS OF SAID SECOND BODY AND SAID SECOND FLEXIBLE PORTION OF SAID SLEEVE HOLDS SAID SECOND INSULATING BODY IN PLACE.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US186699A US3157449A (en) | 1962-04-11 | 1962-04-11 | Electrical connectors |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US186699A US3157449A (en) | 1962-04-11 | 1962-04-11 | Electrical connectors |
Publications (1)
Publication Number | Publication Date |
---|---|
US3157449A true US3157449A (en) | 1964-11-17 |
Family
ID=22685955
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US186699A Expired - Lifetime US3157449A (en) | 1962-04-11 | 1962-04-11 | Electrical connectors |
Country Status (1)
Country | Link |
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US (1) | US3157449A (en) |
Cited By (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3313017A (en) * | 1962-10-12 | 1967-04-11 | Western Electric Co | Fabrication of electrical apparatus |
US3455022A (en) * | 1962-02-14 | 1969-07-15 | Joseph E Schmitz | Method for producing electrical terminals |
US3468024A (en) * | 1965-10-20 | 1969-09-23 | John L Yonkers | Method and apparatus for orienting and assembling small parts |
US3839783A (en) * | 1972-07-12 | 1974-10-08 | Rodan Ind Inc | Thermistor manufacturing method |
US4026015A (en) * | 1975-04-21 | 1977-05-31 | Amp Incorporated | Heat-shrinkable molded high voltage connector |
DE2942569A1 (en) * | 1978-10-23 | 1980-04-30 | Gen Motors Corp | ELECTRICAL TERMINAL |
US4528619A (en) * | 1983-06-24 | 1985-07-09 | Gte Products Corporation | Replaceable lamp unit providing hermetic seal and fixed alignment for electric lamp contained therein and automobile headlight utilizing same |
US4569006A (en) * | 1985-01-15 | 1986-02-04 | Gte Products Corporation | Replaceable lamp unit and automobile headlight utilizing same |
US4569005A (en) * | 1985-01-15 | 1986-02-04 | Gte Products Corporation | Replaceable lamp unit and automobile headlight utilizing same |
US4598474A (en) * | 1978-12-28 | 1986-07-08 | Siemens Aktiengesellschaft | Method of making an electrical plug connection |
US5278354A (en) * | 1990-02-06 | 1994-01-11 | Raychem Sa | Electrical connection |
EP0973234A2 (en) * | 1998-07-16 | 2000-01-19 | Sumitomo Wiring Systems, Ltd. | Electrical corrector with locking ring |
US20020046875A1 (en) * | 2000-05-12 | 2002-04-25 | Thomas Baumann | Insulation of stator windings with shrink-on sleeves |
US6527599B2 (en) * | 1999-05-28 | 2003-03-04 | Honeywell Inc. | Housing with integrally molded connectors |
US20090023320A1 (en) * | 2007-07-20 | 2009-01-22 | Numatics, Incorporated | Modular electrical bus system |
US20100327200A1 (en) * | 2009-06-30 | 2010-12-30 | Robertshaw Controls Company | Water Tight Valve Having Sealed Flying Leads |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2410321A (en) * | 1943-12-14 | 1946-10-29 | Aircraft Marine Prod Inc | Electrical connector |
US2883520A (en) * | 1957-01-14 | 1959-04-21 | Pennsylvania Furnace And Iron | Light unit for vehicles |
US2958844A (en) * | 1955-05-02 | 1960-11-01 | Amp Inc | High voltage, high altitude bushing |
US3020516A (en) * | 1958-04-25 | 1962-02-06 | Pass & Seymour Inc | Electrical connector body and cap construction with improved conductor securing means |
-
1962
- 1962-04-11 US US186699A patent/US3157449A/en not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2410321A (en) * | 1943-12-14 | 1946-10-29 | Aircraft Marine Prod Inc | Electrical connector |
US2958844A (en) * | 1955-05-02 | 1960-11-01 | Amp Inc | High voltage, high altitude bushing |
US2883520A (en) * | 1957-01-14 | 1959-04-21 | Pennsylvania Furnace And Iron | Light unit for vehicles |
US3020516A (en) * | 1958-04-25 | 1962-02-06 | Pass & Seymour Inc | Electrical connector body and cap construction with improved conductor securing means |
Cited By (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3455022A (en) * | 1962-02-14 | 1969-07-15 | Joseph E Schmitz | Method for producing electrical terminals |
US3313017A (en) * | 1962-10-12 | 1967-04-11 | Western Electric Co | Fabrication of electrical apparatus |
US3468024A (en) * | 1965-10-20 | 1969-09-23 | John L Yonkers | Method and apparatus for orienting and assembling small parts |
US3839783A (en) * | 1972-07-12 | 1974-10-08 | Rodan Ind Inc | Thermistor manufacturing method |
US4026015A (en) * | 1975-04-21 | 1977-05-31 | Amp Incorporated | Heat-shrinkable molded high voltage connector |
DE2942569A1 (en) * | 1978-10-23 | 1980-04-30 | Gen Motors Corp | ELECTRICAL TERMINAL |
US4598474A (en) * | 1978-12-28 | 1986-07-08 | Siemens Aktiengesellschaft | Method of making an electrical plug connection |
US4528619A (en) * | 1983-06-24 | 1985-07-09 | Gte Products Corporation | Replaceable lamp unit providing hermetic seal and fixed alignment for electric lamp contained therein and automobile headlight utilizing same |
US4569006A (en) * | 1985-01-15 | 1986-02-04 | Gte Products Corporation | Replaceable lamp unit and automobile headlight utilizing same |
US4569005A (en) * | 1985-01-15 | 1986-02-04 | Gte Products Corporation | Replaceable lamp unit and automobile headlight utilizing same |
US5278354A (en) * | 1990-02-06 | 1994-01-11 | Raychem Sa | Electrical connection |
EP0973234A3 (en) * | 1998-07-16 | 2001-06-13 | Sumitomo Wiring Systems, Ltd. | Electrical corrector with locking ring |
EP0973234A2 (en) * | 1998-07-16 | 2000-01-19 | Sumitomo Wiring Systems, Ltd. | Electrical corrector with locking ring |
US6527599B2 (en) * | 1999-05-28 | 2003-03-04 | Honeywell Inc. | Housing with integrally molded connectors |
US20020046875A1 (en) * | 2000-05-12 | 2002-04-25 | Thomas Baumann | Insulation of stator windings with shrink-on sleeves |
US20090023320A1 (en) * | 2007-07-20 | 2009-01-22 | Numatics, Incorporated | Modular electrical bus system |
US7753740B2 (en) | 2007-07-20 | 2010-07-13 | Numatics, Incorporated | Modular electrical bus system |
US20100248556A1 (en) * | 2007-07-20 | 2010-09-30 | Numatics, Incorporated | Modular Electrical Bus System |
US20100251159A1 (en) * | 2007-07-20 | 2010-09-30 | Numatics, Incorporated | Modular Electrical Bus System |
US7896711B2 (en) | 2007-07-20 | 2011-03-01 | Numatics, Incorporated | Modular electrical bus system |
US7967646B2 (en) | 2007-07-20 | 2011-06-28 | Numatics, Incorporated | Modular electrical bus system |
USRE48517E1 (en) | 2007-07-20 | 2021-04-13 | Asco, L.P. | Modular electrical bus system |
US20100327200A1 (en) * | 2009-06-30 | 2010-12-30 | Robertshaw Controls Company | Water Tight Valve Having Sealed Flying Leads |
US9366351B2 (en) * | 2009-06-30 | 2016-06-14 | Robertshaw Controls Company | Water tight valve having sealed flying leads |
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