US3858140A - Time-delay relay and method of assembling same - Google Patents

Time-delay relay and method of assembling same Download PDF

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Publication number
US3858140A
US3858140A US00383946A US38394673A US3858140A US 3858140 A US3858140 A US 3858140A US 00383946 A US00383946 A US 00383946A US 38394673 A US38394673 A US 38394673A US 3858140 A US3858140 A US 3858140A
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United States
Prior art keywords
chamber
housing
heater
switch assembly
terminals
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
US00383946A
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English (en)
Inventor
J Hancock
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Texas Instruments Inc
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Texas Instruments 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 Texas Instruments Inc filed Critical Texas Instruments Inc
Priority to US00383946A priority Critical patent/US3858140A/en
Priority to DE19742435517 priority patent/DE2435517C3/de
Priority to DE7425172U priority patent/DE7425172U/de
Priority to GB3268574A priority patent/GB1455600A/en
Priority to FR7426120A priority patent/FR2239753B1/fr
Priority to IT52330/74A priority patent/IT1018750B/it
Priority to JP49086837A priority patent/JPS5848976B2/ja
Application granted granted Critical
Publication of US3858140A publication Critical patent/US3858140A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H61/00—Electrothermal relays
    • H01H61/02—Electrothermal relays wherein the thermally-sensitive member is heated indirectly, e.g. resistively, inductively

Definitions

  • ABSTRACT A time-delay relay comprising a housing having a chamber in which are mounted a thermostatic switch assembly and an electric heater in heat transfer relation with the thermostatic switch assembly for heating the latter to effect actuation of the contacts thereof.
  • a pair of heater terminals are positioned in terminalreceiving slots in the housing, and have portions in conductive electrical contact with the heater.
  • a cover overlies the thermostatic switch assembly and has means engageable with the terminals thereby to retain the terminals within the housing.
  • a retainer is provided which is snapped into a position spanning the mouth of the chamber thereby to hold the terminals, heater, thermostatic switch assembly, and the cover in their assembled position. Also disclosed is a method of assembling a time-delay relay in which the various components are inserted into respective openings in a chamber of a housing and in which the various components are secured relative to one another and relative to the housing by means of a retainer.
  • This invention relates to thermostatic electrical switches and is particularly concerned with a timedelay relat (TDR) utilizing a thermostatic switch assembly for opening and closing an electrical circuit.
  • TDR timedelay relat
  • this invention is concerned with a TDR in which certain electrical terminals and a thermostatic switch assembly are held in position relative to one another and relative to a housing by means of a retainer adapted to be snapped into position in a chamber in the housing.
  • the thermostatic switch assembly was adhesive-bonded or riveted to a housing and electrical terminals were riveted to the housing.
  • the adhesive bonding procedure required that the adhesive be cured, and this curing cycle increased the assembly time of the unit.
  • Both the application of the adhesive and the installation of the rivets for the terminals involved separate manufacturing steps which increased production time and costs.
  • a TDR which may be assembled without the use of adhesive or rivets; the provision of such a TDR in which all parts may be brought together along one axis or plane (e.g., a vertical one) thereby to simplify assembly; the provision of such a TDR in which terminals may readily be installed in the housing without the use of rivets; the provision of such a TDR which, once assembled, substantially precludes tampering; the provision of such a TDR in which many of the components thereof perform multiple functions; the provision of a method of assembling a TDR unit which simplifies the assembly procedure of TDRs and which results in increased production at lower cost; and the provision of such a TDR which is of rugged contruction and is reliable in operation.
  • Other objects and features of this invention will be in part apparent and in part pointed out hereinafter.
  • a time-delay relay unit of this invention comprises a housing having a chamber and terminalreceiving slots therein.
  • a thermally responsive switch assembly adapted to make and break an electrical circuit is mounted within the chamber.
  • This switch assembly has contacts and a thermostatic switch element therewithin, the contacts being movable into and out of engagement with one another in response to actuation of the thermostatic element when the latter is subjected to predetermined temperature conditions.
  • a heater energized by a second circuit is positioned in a heattransfer relation with the switch assembly for heating the thermostatic element.
  • a pair of terminals adapted for electrical contact with the heater is provided in the housing, these terminals constituting a portion of the second circuit. The heater and the switch assembly are mounted within the chamber, and the terminals are received by the terminal-receiving slots in the housing.
  • cover overlies the chamber and has means engageable with the terminals thereby to retain the terminals within the housing.
  • a retainer engageable with the housing is forced into position at the mouth of the chamber thereby to hold the cover, the switch assembly, the heater and the terminals in an assembled relation relative to one another within the housing.
  • the method of this invention of assembling a timedelay relay unit comprises first inserting the terminal members into the openings in the housing with portions of the terminals extending into the chamber. Then, the heater and the switch assembly are inserted into the chamber with the heater in electrical contact with the above-mentioned portions of the terminals and in heattransfer relation with the switch assembly. A cover is then installed in the chamber to overlie the switch assembly and the heater, the cover being engageable with the terminal members, and then a retainer is applied across the mouth of the chamber, the retainer being engageable with the housing at the sides of the chamber thereby to positively secure the terminal members, the heater, the switch assembly and the cover in an assembled position relative to the housing.
  • FIG. 1 is a perspective view of a time-delay relay (TDR) of this invention
  • FIG. 2 is an enlarged plan view of the TDR
  • FIG. 3 is a vertical section taken on line 3-3 of FIG. 2 with parts broken away to show some interior details;
  • FIG. 4 is an enlarged partial plan view of a portion of the TDR housing prior to installation of the terminals and switch assembly.
  • FIGS. 5 and 6 are front views of the two heater terminals.
  • a time-delay relay unit (TDR) of this invention is shown to comprise a housing 3 of nonconductive material (e.g., a molded synthetic resin) having a chamber 5 and a pair of terminal-receiving slots 7a, 7b molded therein.
  • An enclosed unitary thermostatic switch assembly 9 is mounted within chamber 5.
  • This switch assembly includes a case 11 adapted for reception in chamber 5 and a pair of contacts 13a, 13b mounted within the case.
  • contact is mounted on a bracket 15 and contact 13b is secured to the free end of a contact arm 17 resiliently cantilevered from one side of the switch casing and being movable therewithin to bring contact 13b into and out of mating engagement with contact 130.
  • Contacts 13a, 13b are normally biased closed by the arm 17.
  • a thermostatic element 19 such as a snap-acting bimetallic disk of the type disclosed, for example, in US. Pat. No. l,448,240, is mounted within case 11. Because of its nondevelopable or dished shape element 19 will snap from one curvature position to an opposite one in response to change of temperature so as to provide mechanical power to actuate the contact arm l7 of switch assembly 9. Disk 19 is mounted at the bottom of case 11 within a cup-shaped end closure 21 thereof which is formed from a material such as copper having good electrical and thermal conductivity. The periphery of disk 19 is supported by an internal shoulder 23 of cup 21. A pill-shaped heater 25 is bonded in heat-transfer relation to the undersurface of cup 21, this heater constituting means for heating disk 19.
  • This heater may be formed of a material with a resistivity-temperature curve having a steep-sloped positive temperature coefficient (referred to as PTC) such as is described and illustrated in US. Pat. No. 3,489,976.
  • PTC steep-sloped positive temperature coefficient
  • the bimetallic disk At temperatures below a predetermined elevated temperature, the bimetallic disk is dish-shaped with its upper face concave (see FIG. 3). Upon being heated, the disk snaps over center so that its upper face is convex.
  • An actuator or transfer pin 26 is axially slidable within a central bore of a cylindrical pin guide 27 so that when disk 19 snaps into its convex upward curvature it will be moved upwardly to engage a lobe 28 intermediate the ends of contact arm 17 thereby to lift arm 17 to open contacts 13a, 13b.
  • a pair of terminals 29a, 29b is inserted in their respective receiving slots 7a, 7b in housing 3 (one terminal in each slot).
  • Each terminal 29a, 29b has a contact portion 31a, 31b, respectively which extends into chamber so that the contact portion 31a of terminal 29a engages and electrically contacts the central undersurface of heater 25 and contact portion 31b of terminal 29b engages and electrically contacts cup 21, which constitutes the other terminal of heater pill 25.
  • terminals 29a, 29b and heater 25 form a heater circuit to which electrical power is supplied for heater energization.
  • Switch assembly 9 includes a pair of terminals 33a, 33b, each connected to a respective contact 13a, 13b, these terminals and contacts constituting an electrical circuit which is opened in delayed response to energization of the heater circuit by disk 19 snapping overcenter and opening contacts 13a, 13b. It is to be understood that the arrangement of the disk and contacts may be such that the contacts will be opened or closed on a rise in temperature.
  • Terminals 29a, 29b are substantially identical in structure in their upper portions, both including a shank portion 35a, 35b, a quick-connect portion 37a, 37b with shoulders 39a, 3% between the shank and quickconnect external terminal portions 37a, 37b and with shoulders 41a, 41b at the lower ends of the shank portion.
  • Each terminal has a tab 43a, 43b struck from the shank portion with its free upper end extending outwardly from the shank portion and inwardly toward chamber 5 when the terminal is received in its respective terminal-receiving slot 7a, 7b.
  • contact portion 31a of terminal 29a is an elongate arm extending into chamber 5 for firm electrical contact with the undersurface of heater 25.
  • contact portion 31b of terminal 33b has its relatively short contact finger 31b struck from its shank 35b so as to extend into the chamber for electrical contact with the periphery of cup 21, and thus conductive electrical contact with the top surface of heater 25.
  • Terminals 29a, 29b are preferably made of a resilient electrical conductor material, such as a good cooper electrical alloy.
  • the contact portions 31a, 31b are formed so as to be biased into resilient firm engagement with heater 25 and with cup 21, respectively, thereby to maintain excellent electrical contact therewith.
  • Terminal-receiving slots 7a, 7b in housing 3 are identical, and thus only one slot need be described in detail.
  • Each slot includes a thin, blind slot 45 (see FIG. 4) in the housing generally parallel to the axis of chamber 5 for reception of the shank portions 31a, 31b of a re spective terminal 29a, 29b inserted therein, and a connecting slot 47 extending heightwise of the chamber along the length of the shank slot providing an opening between the chamber and-the shank slot thus enabling the contact portions 31a, 31b of the terminals to extend from the shank-receiving slot into the chamber.
  • stops 49 Within each shank-receiving slot 45 are stops 49(see FIG.
  • stops are provided in housing 3 on the walls of chamber 5, these stops being engageable by the periphery of cup 21 of switch assembly 9 thereby to position the case 11 when it is seated in the chamber in an assembled position in which heater 25 and cup 21 are properly located within the housing for electrical contact with contact portions 31a, 31b of terminals 29a, 29b.
  • chamber 5 is a blind hole of generally circular cross section and has a mouth 53 of generally rectangular cross section.
  • Cover 55 is of generally rectangular shape in plan and has a close fit (but not a tight fit) within the mouth of the chamber.
  • the cover has lugs 57 extending from opposite ends of the cover into slots 47 which engage the inner faces of shank portions 35a, 35b and the upper free ends of tabs 43a, 43b of terminals 29a, 29b, thereby preventing movement of the terminals and retaining them in their installed position in the housing.
  • cover 55 has a plurality of gripping ledges on its undersurface for engagement with the upper portion of switch body 11 of switch assembly 9 thereby to hold the latter in its installed position.
  • a retainer 61 adapted to be forced or snapped into a locking position in chamber mouth 53, positively holds and locks the cover in position in the housing. With the cover lugs 57 in engagement with tabs 43a, 43b terminals 29a, 29b and with cover ledges 59 in engagement with switch body 11 of switch assembly 9, all the components of the time-delay unit are securely held relative to one another and relative to housing 3 in an assembled position by means of retainer 61.
  • retainer 61 is preferably made of a stiff, resilient material, such as spring steel.
  • the retainer is generally of rectangular shape in plan and has tabs 63 extending endwise therefrom.
  • Tabs 63 are bent up from the plane of the main section of the retainer and the length of the retainer from one tab to another is slightly greater than the interior dimensions of chamber mouth 53 whereby, upon installation of the retainer, the retainer must be forced into the chamber mouth. With the retainer properly installed, it is contiguous to the upper surface of cover 55 and securely holds the latter in position relative to the housing.
  • cover 55 is made of an electrically insulative material, such as a thermosetting synthetic resin, thereby to electrically insulate the switch assembly from retainer 61.
  • retainer tabs 63 are deformed or sprung so as to have an interference fit or engagement with opposing surfaces of the housing at the mouth of the chamber as the retainer is pushed into the chamber mouth. With tabs 63 being bent up away from the main section of the retainer, any attempt to remove an installed retainer from the chamber mouth will cause the ends of the tabs to dig into the side walls of the chamber mouth and thus effectively prevent removal of this retainer. This self-tightening or self-locking feature of the retainer prevents tampering with the time-delay relay unit after assembly.
  • a simpler, more rapid and less costly method of assembly is accomplished by first inserting terminal members 29a, 29b into their respective terminal-receiving slots 7a, 7b in housing 3.
  • Case 11 enclosing unitary thermostatic switch assembly 9, along with heater 25 secured to the bottom thereor, is then inserted into its installed position in chamber 5 with the contact portions 31a, 31b of terminals 29a, 29b in electrical contact with the heater and with cup 19 respectively and with the heater in heat transfer station with the cup.
  • Cover 55 is then placed in chamber mouth 53 with lugs 57 extending into contact-receiving slots 47 for engagement with tabs 41 on terminals 29a, 29b and with ledges 59 in engagement with switch body 11.
  • Retainer 61 is then snapped into position in chamber mouth 51 above cover 55 thereby positively to secure terminals 29a, 29b, switch assembly 9 and cover 55 in their respective assembled positions (see FIG. 3) relative to housing 3.
  • the method of assembling a time-delay relay unit of this invention eliminates the need for adhesive bonding the switch assembly to the housing, permits all parts to be brought together during assembly along a common vertical axis or plane, eliminates the need to rivet heater terminals 29 a, 29 b to the housing, and provides an assembled unit which is of small over-all size and which effectively eliminates tampering with the unit after assembly.
  • a time-delay relay comprising:
  • a housing having a chamber and terminal receiving slots therein;
  • thermally responsive switch assembly mounted within said chamber and having contacts and a thermostatic element, said contacts being movable into and out of engagement with one another in response to actuation of the thermostatic element when the latter is subjected to predetermined temperature conditions thereby to make and break a first circuit;
  • a retainer engageable with said housing adapted to be forced into position at the mouth of the chamber thereby to hold the cover, switch assembly, heater and terminals in assembled relation within said housing.
  • each terminal has a shank portion adapted to be received by said slot upon insertion of its lower end into the slot from above, a contact portion extending from the shank portion through said slot portion and into the chamber for conductive electrical contact with said heater.
  • each terminal has a tab struck from its shank portion, said tab angling away from said shank portion and inwardly and upwardly toward said chamber, said tab being received within said portion of said slot and being engageable by said means on said cover thereby to retain the terminals within the housing.
  • each said slot has a stop therewithin engageable by a respective terminal inserted therein for positioning the terminal in a desired installed position within the slot relative to the housing in which said contact portion is in position for conductive electrical contact with said heater.
  • a time-delay relay as set forth in claim 2 wherein said means on said cover engageable with said terminal comprises a pair of lugs, one for each terminal, each lug extending into said portion of said terminal-receiving slot and being engageable with a respective terminal.
  • a time-delay relay as set forth in claim 7 in which said thermally responsive switch assembly is an enclosed unitary assembly and said heater is secured to the undersurface thereof.
  • a time-delay relay as set forth in claim 9 wherein the mouth of said chamber is rectangular in cross section and said retainer is generally in the shape of a rectangle having a plurality of tabs extending endwise therfrom, said tabs being bent up from the plane of said retainer and being engageable with opposite sides of the mouth of the chamber thereby to lock the retainer relative to the housing upon inserting the retainer into the mouth of the chamber.
  • a method of assembling a time-delay relay comprising a housing with a chamber and with openings for the reception of terminal members, a thermostatic switch assembly, a heater for heating said switch assembly, and a pair of terminal members for supplying electrical power to the heater, said method comprising the steps of:

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  • Thermally Actuated Switches (AREA)
  • Control Of Resistance Heating (AREA)
US00383946A 1973-07-30 1973-07-30 Time-delay relay and method of assembling same Expired - Lifetime US3858140A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
US00383946A US3858140A (en) 1973-07-30 1973-07-30 Time-delay relay and method of assembling same
DE19742435517 DE2435517C3 (de) 1973-07-30 1974-07-24 Verzögert ansprechendes Relais
DE7425172U DE7425172U (de) 1973-07-30 1974-07-24 Verzögert ansprechendes Relais
GB3268574A GB1455600A (en) 1973-07-30 1974-07-24 Time-delay relay and method of assembling same heating process and apparatus
FR7426120A FR2239753B1 (fr) 1973-07-30 1974-07-26
IT52330/74A IT1018750B (it) 1973-07-30 1974-07-29 Perfezionamento nei rele a ritardo
JP49086837A JPS5848976B2 (ja) 1973-07-30 1974-07-29 遅延リレ−

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00383946A US3858140A (en) 1973-07-30 1973-07-30 Time-delay relay and method of assembling same

Publications (1)

Publication Number Publication Date
US3858140A true US3858140A (en) 1974-12-31

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Application Number Title Priority Date Filing Date
US00383946A Expired - Lifetime US3858140A (en) 1973-07-30 1973-07-30 Time-delay relay and method of assembling same

Country Status (6)

Country Link
US (1) US3858140A (fr)
JP (1) JPS5848976B2 (fr)
DE (1) DE7425172U (fr)
FR (1) FR2239753B1 (fr)
GB (1) GB1455600A (fr)
IT (1) IT1018750B (fr)

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4177443A (en) * 1978-03-31 1979-12-04 Essex Group, Inc. Thermal relay and electric range control utilizing the same
FR2448219A1 (fr) * 1979-01-31 1980-08-29 Pierburg Gmbh & Co Kg Dispositif de commande d'une valve ou d'un interrupteur a temporisation thermique
US4365225A (en) * 1980-05-05 1982-12-21 Texas Instruments Incorporated Time delay relay with spring clips
DE3244490A1 (de) * 1981-12-04 1983-06-16 Texas Instruments Italia S.p.A., Aversa Elektrischer bimetall-schalter oder -umschalter fuer eine oder mehrere temperaturen
USRE31367E (en) * 1975-12-22 1983-08-30 Texas Instruments Incorporated Motor starting and protecting apparatus
EP0141286A2 (fr) * 1983-10-06 1985-05-15 Reinhold Barlian Interrupteur thermique multipolaire
US4630021A (en) * 1985-12-19 1986-12-16 Texas Instruments Incorporated Low cost time delay relay assembly
US4649712A (en) * 1985-12-17 1987-03-17 Whirlpool Corporation Thermostat mounting
US4701824A (en) * 1985-03-15 1987-10-20 Texas Instruments Incorporated Protected refrigerator compressor motor systems and motor protectors therefor
DE3918239A1 (de) * 1989-06-05 1990-12-06 Miele & Cie Sicherheitseinrichtung fuer elektrische haushaltgeraete
US5621370A (en) * 1995-03-14 1997-04-15 St. Louis; Robert Mounting arrangement for thermostat in a clothes dryer
US5729416A (en) * 1995-05-30 1998-03-17 General Electric Company Motor starter and protector module
US20050205327A1 (en) * 2004-01-13 2005-09-22 De Groot Jan Motorcycle
US7005591B1 (en) 2004-09-01 2006-02-28 Phillips & Temro Industries, Inc. Thermostatic cord
US20060068636A1 (en) * 2004-09-28 2006-03-30 Michael Meleck Cord set with a breakable connector
US20060068637A1 (en) * 2004-09-28 2006-03-30 Michael Meleck Breakable connector
US20070139177A1 (en) * 2005-12-16 2007-06-21 Fleury Philip J Cab receptacle with indicator light
US20080233773A1 (en) * 2007-03-21 2008-09-25 Michael Meleck Cab power connectors
US7438589B1 (en) 2007-08-02 2008-10-21 Phillips & Temro Industries Inc. Dual entry connector having an integrated power indicator light

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6032731U (ja) * 1983-08-10 1985-03-06 山田電機製造株式会社 遅延リレ−
GB9418221D0 (en) * 1994-09-09 1994-10-26 Strix Ltd Energy regulators

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2844778A (en) * 1957-09-12 1958-07-22 Gen Electric Protective arrangement for stator motors
US3272908A (en) * 1964-07-17 1966-09-13 Tung Sol Electric Inc Combined cover member and mount
US3489976A (en) * 1966-01-03 1970-01-13 Texas Instruments Inc Self-protected time delay relay
US3755770A (en) * 1971-12-07 1973-08-28 Gen Electric Thermostat having improved temperature drift control means

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2844778A (en) * 1957-09-12 1958-07-22 Gen Electric Protective arrangement for stator motors
US3272908A (en) * 1964-07-17 1966-09-13 Tung Sol Electric Inc Combined cover member and mount
US3489976A (en) * 1966-01-03 1970-01-13 Texas Instruments Inc Self-protected time delay relay
US3755770A (en) * 1971-12-07 1973-08-28 Gen Electric Thermostat having improved temperature drift control means

Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE31367E (en) * 1975-12-22 1983-08-30 Texas Instruments Incorporated Motor starting and protecting apparatus
US4177443A (en) * 1978-03-31 1979-12-04 Essex Group, Inc. Thermal relay and electric range control utilizing the same
FR2448219A1 (fr) * 1979-01-31 1980-08-29 Pierburg Gmbh & Co Kg Dispositif de commande d'une valve ou d'un interrupteur a temporisation thermique
US4365225A (en) * 1980-05-05 1982-12-21 Texas Instruments Incorporated Time delay relay with spring clips
DE3244490A1 (de) * 1981-12-04 1983-06-16 Texas Instruments Italia S.p.A., Aversa Elektrischer bimetall-schalter oder -umschalter fuer eine oder mehrere temperaturen
EP0141286A2 (fr) * 1983-10-06 1985-05-15 Reinhold Barlian Interrupteur thermique multipolaire
EP0141286A3 (en) * 1983-10-06 1987-08-26 Reinhold Barlian Multiphase thermal switch
US4701824A (en) * 1985-03-15 1987-10-20 Texas Instruments Incorporated Protected refrigerator compressor motor systems and motor protectors therefor
US4706152A (en) * 1985-03-15 1987-11-10 Texas Instruments Incorporated Protected refrigerator compressor motor systems and motor protectors therefor
US4713717A (en) * 1985-03-15 1987-12-15 Texas Instruments Protected refrigerator compressor motor systems and motor protectors
US4649712A (en) * 1985-12-17 1987-03-17 Whirlpool Corporation Thermostat mounting
US4630021A (en) * 1985-12-19 1986-12-16 Texas Instruments Incorporated Low cost time delay relay assembly
DE3918239A1 (de) * 1989-06-05 1990-12-06 Miele & Cie Sicherheitseinrichtung fuer elektrische haushaltgeraete
US5621370A (en) * 1995-03-14 1997-04-15 St. Louis; Robert Mounting arrangement for thermostat in a clothes dryer
US5729416A (en) * 1995-05-30 1998-03-17 General Electric Company Motor starter and protector module
US20050205327A1 (en) * 2004-01-13 2005-09-22 De Groot Jan Motorcycle
US7005591B1 (en) 2004-09-01 2006-02-28 Phillips & Temro Industries, Inc. Thermostatic cord
US20060042916A1 (en) * 2004-09-01 2006-03-02 Fleury Philip J Thermostatic cord
US20060068637A1 (en) * 2004-09-28 2006-03-30 Michael Meleck Breakable connector
US20060068636A1 (en) * 2004-09-28 2006-03-30 Michael Meleck Cord set with a breakable connector
US7052282B2 (en) 2004-09-28 2006-05-30 Phillips & Temro Industries, Inc. Cord set with a breakable connector
US7070417B2 (en) 2004-09-28 2006-07-04 Phillips & Temro Industries Inc. Breakable connector for connecting a vehicle to a power source
US20070139177A1 (en) * 2005-12-16 2007-06-21 Fleury Philip J Cab receptacle with indicator light
US7439851B2 (en) 2005-12-16 2008-10-21 Phillips & Temro Industries Inc. Cab receptacle with indicator light
US20080233773A1 (en) * 2007-03-21 2008-09-25 Michael Meleck Cab power connectors
US7666028B2 (en) 2007-03-21 2010-02-23 Phillips & Temro Industries Inc. Cab power connectors
US7438589B1 (en) 2007-08-02 2008-10-21 Phillips & Temro Industries Inc. Dual entry connector having an integrated power indicator light

Also Published As

Publication number Publication date
GB1455600A (en) 1976-11-17
FR2239753B1 (fr) 1980-04-04
FR2239753A1 (fr) 1975-02-28
JPS5848976B2 (ja) 1983-11-01
JPS5043453A (fr) 1975-04-19
IT1018750B (it) 1977-10-20
DE2435517A1 (de) 1975-02-20
DE2435517B2 (de) 1977-01-13
DE7425172U (de) 1978-01-12

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