DE2050128A1 - Electric hot water heater - Google Patents

Electric hot water heater

Info

Publication number
DE2050128A1
DE2050128A1 DE19702050128 DE2050128A DE2050128A1 DE 2050128 A1 DE2050128 A1 DE 2050128A1 DE 19702050128 DE19702050128 DE 19702050128 DE 2050128 A DE2050128 A DE 2050128A DE 2050128 A1 DE2050128 A1 DE 2050128A1
Authority
DE
Germany
Prior art keywords
contactor
contact
heating
hot water
water heater
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.)
Granted
Application number
DE19702050128
Other languages
German (de)
Other versions
DE2050128C3 (en
DE2050128B2 (en
Inventor
Franz 8226 Traunwalchen P Bierwirth
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.)
SEG Hausgeraete GmbH
Original Assignee
Siemens Elektrogaerate GmbH
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 Siemens Elektrogaerate GmbH filed Critical Siemens Elektrogaerate GmbH
Priority to DE2050128A priority Critical patent/DE2050128C3/en
Publication of DE2050128A1 publication Critical patent/DE2050128A1/en
Priority claimed from US05/372,119 external-priority patent/US3961814A/en
Priority to US05/631,331 priority patent/US4043857A/en
Publication of DE2050128B2 publication Critical patent/DE2050128B2/en
Application granted granted Critical
Publication of DE2050128C3 publication Critical patent/DE2050128C3/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • B29C65/20—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools with direct contact, e.g. using "mirror"
    • B29C65/2007—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools with direct contact, e.g. using "mirror" characterised by the type of welding mirror
    • B29C65/2015—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools with direct contact, e.g. using "mirror" characterised by the type of welding mirror being a single welding mirror comprising several separate heating surfaces in different planes, e.g. said heating surfaces having different temperatures
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/56—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits
    • B29C65/64—Joining a non-plastics element to a plastics element, e.g. by force
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/128—Stepped joint cross-sections
    • B29C66/1282—Stepped joint cross-sections comprising at least one overlap joint-segment
    • B29C66/12821—Stepped joint cross-sections comprising at least one overlap joint-segment comprising at least two overlap joint-segments
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/128—Stepped joint cross-sections
    • B29C66/1284—Stepped joint cross-sections comprising at least one butt joint-segment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/52—Joining tubular articles, bars or profiled elements
    • B29C66/522—Joining tubular articles
    • B29C66/5221—Joining tubular articles for forming coaxial connections, i.e. the tubular articles to be joined forming a zero angle relative to each other
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/52—Joining tubular articles, bars or profiled elements
    • B29C66/522—Joining tubular articles
    • B29C66/5229—Joining tubular articles involving the use of a socket
    • B29C66/52291—Joining tubular articles involving the use of a socket said socket comprising a stop
    • B29C66/52293—Joining tubular articles involving the use of a socket said socket comprising a stop said stop being external
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/52—Joining tubular articles, bars or profiled elements
    • B29C66/522—Joining tubular articles
    • B29C66/5229—Joining tubular articles involving the use of a socket
    • B29C66/52298—Joining tubular articles involving the use of a socket said socket being composed by several elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/63—Internally supporting the article during joining
    • B29C66/636—Internally supporting the article during joining using a support which remains in the joined object
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L13/00—Non-disconnectible pipe-joints, e.g. soldered, adhesive or caulked joints
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L47/00—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics
    • F16L47/02—Welded joints; Adhesive joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2009/00—Use of rubber derived from conjugated dienes, as moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
    • B29K2023/04—Polymers of ethylene
    • B29K2023/06—PE, i.e. polyethylene
    • B29K2023/0658—PE, i.e. polyethylene characterised by its molecular weight
    • B29K2023/0683—UHMWPE, i.e. ultra high molecular weight polyethylene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
    • B29K2023/18—Polymers of hydrocarbons having four or more carbon atoms, e.g. polymers of butylene, e.g. PB, i.e. polybutylene
    • B29K2023/22—Copolymers of isobutene, e.g. butyl rubber
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2061/00—Use of condensation polymers of aldehydes or ketones or derivatives thereof, as moulding material
    • B29K2061/04—Phenoplasts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2096/00—Use of specified macromolecular materials not provided for in a single one of main groups B29K2001/00 - B29K2095/00, as moulding material
    • B29K2096/02—Graft polymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/0085—Copolymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2696/00—Use of specified macromolecular materials not provided for in a single one of main groups B29K2601/00 – B29K2695/00, for preformed parts, e.g. for inserts
    • B29K2696/02—Graft polymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/24—Pipe joints or couplings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/24—Pipe joints or couplings
    • B29L2031/243—Elbows
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/24—Pipe joints or couplings
    • B29L2031/246—T-joints
    • 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
    • Y10S285/00—Pipe joints or couplings
    • Y10S285/919—Resinous
    • 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
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • Y10T156/1002—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina
    • Y10T156/1005—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina by inward collapsing of portion of hollow body
    • 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
    • Y10T29/49879—Spaced wall tube or receptacle

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Control Of Resistance Heating (AREA)

Description

Elektrischer Heißwasserbereiter Die Erfindung bezieht sich au9 einen elektrischen Heißwasserbereiter, mit zwei elektrischen Heizwiderständen, die in unterschiedlicher Schaltungsanordnung an ein Netz anschaltbar sind.Electric hot water heater The invention relates to a electric hot water heater, with two electric heating resistors that are in different circuit arrangements can be connected to a network.

Um die Netzbelastung so gering wie möglich zu halten, ist es dblich, zur Aufheizung des Wassers und zur Aufrechterhaltung eines erreichten Temperaturzustandes lediglich einen der Ileizwiderstände als Schwachheizung zu betreiben. Wenn heißes Wasser in besonders kurzer Zeit erzeugt werden soll, werden unter Ausnutzung der gesamten installierten Leistung des Gerätes sämtliche Heizeriderstände eingeschaltet. In diesem Falle spricht man von Starkheizung.In order to keep the network load as low as possible, it is advisable to to heat the water and to maintain a temperature that has been reached to operate only one of the Ileizwideristors as weak heating. When hot Water is to be generated in a particularly short time, taking advantage of the total installed power of the device, all heater resistors are switched on. In this case one speaks of strong heating.

In einfachster Weise läßt sich die Verteilung der Heizleistung eines Gerätes in Schwachheizung und Starkheizung dadurch erreichen, daß zwei Ileizwiderstände von beispielsweise jeweils 2 kW einzeln oder zusammen an das Netz geschaltet werden. Es ergibt sich dann eine Schwachheizung mit 2 kW und eine Starkheizung mit 4 kW. In the simplest way, the distribution of the heating power can be Achieve device in low heating and high heating that two Ileizwideratoren of for example 2 kW each can be connected to the network individually or together. There is then a weak heating with 2 kW and a strong heating with 4 kW.

Ausgehend von einer installierten Leistung von 4 kW ist es jedoch insbesondere bei einem als Heißwasserspeicher ausgebildeten Heißwasserbereiter erwUnscht, daß zwischen der Schwacliheizung und der Starkheizung ein größerer Leistungsunterschied besteht. In aller Regel genügt bei derartigen Geräten eine Schwachheizung in der Größenordnung von höchstens 1/4 bis 1/6 der installierten Leistung. However, assuming an installed capacity of 4 kW, it is particularly desirable for a hot water heater designed as a hot water storage tank, that there is a greater difference in performance between the Schwacli heating and the strong heating consists. As a rule, weak heating in the is sufficient for such devices In the range of 1/4 to 1/6 of the installed capacity at the most.

Man ist deshalb bei einem bekannten Gerät dieser Art schon dazu übergegangen, den einen der Heizwiderstände in zwei fleizwiderstän'. One has therefore already gone over to a known device of this type, one of the heating resistors in two fleizwiderstän '.

de von jeweils 1 kW aufzuteilen. Es ergibt sich damit bei einer Starkheizung (Parallelschaltung) von 4 kW eine Schlachheizung (ein 1 kW Heizkörper allein) von 1 kW. Diese AuSbautorm Jiat jedoch den Nachteil, daß ein zusätzlicher Heizwiderstand erfurderlich ist. Außerdem ist der die Schwaciiheizung von 1 kW liefernde Heizkörper während der den größten Teil der Betriebszeiten des Gerätes einnehmenden Schwachheizzeiten ständig maximal ausgelastet. de to be divided by 1 kW each. It is the result of strong heating (Parallel connection) of 4 kW a duct heater (a 1 kW radiator alone) of 1 kW. However, this construction standard has the disadvantage that an additional heating resistor necessary is. In addition, it is the 1 kW Schwacii heater supplying radiators during most of the operating hours of the device occupying low heating times are constantly being used to the maximum.

Es hat sich gezeigt, daß durch diese Beanspruchung die Lebensdauer des Gerätes wesentlich verringert ist.It has been shown that this stress reduces the service life of the device is significantly reduced.

Der Erfindung liegt die Aufgabe zugrunde, einen elektrischen Heißwasserbereiter zu schaffen, der ohne Verwendung eines zusätzlichen Heizwiderstandes einen ausrdchend großen Leistungsunterschied zwischen Schwachheizung und Starkheizung aufweist und der sich durch eine besonders hohe Lebensdauer auszeichnet.The invention is based on the object of an electric hot water heater to create an outrageous one without the use of an additional heating resistor has a large difference in performance between low heating and high heating and which is characterized by a particularly long service life.

Erfindungsgemäß wird diese Aufgabe dadurch gelöst, daß die Reihenschaltung des einen Heizwiderstandes und eines Ruhekontaktes eines ersten SchUtzes einem Arbeitskontakt eines zweiten Schützes und die Reihenschaltung des anderen Heizwiderstandes und des Ruhekontaktes dee ersten Schützes einem Arbeitskontakt des ersten SchUtzes oder des zweiten Schützes parallelgeschaltet sind, und daß der eine Heizwiderstand über den Arbeitskontakt des ersten SchUtzes oder des zweiten SchUtzes und'der andere Heizwiderstand über den Arbeitskontakt des zweiten SchUtzes und der Haltestromkreis des zweiten Schützes über einen weiteren Arbeitskontakt des ersten SchUtzes über einen willkürzlich betätigbaren Kontakt an das Netz zuschaltbar sind.According to the invention this object is achieved in that the series connection of a heating resistor and a break contact of a first contactor a make contact a second contactor and the series connection of the other heating resistor and of the normally closed contact of the first contactor a normally open contact of the first contactor or of the second contactor are connected in parallel, and that the one heating resistor over the working contact of the first contactor or the second contactor and the other Heating resistor across the normally open contact of the second contactor and the holding circuit of the second contactor via a further working contact of the first contactor an arbitrarily actuatable contact can be connected to the network.

Bei Schwachheizung liegen die beiden Heizwiderstände von beispielsweise jeweils 2 kW über den Ruhekontakt des ersten SchUtzes als Verbindungskontakt in Reihe rntNetz. Die Heizleistung des Gerätes bei Schwachheizung beträgt somit 1 kW. Im Falle der Zuschaltung der Starkheizung liegen die beiden Heizwiderstände über die Arbeitskontakte der beiden Schütze einzeln am Netz, so daß sich eine Starkheizung von 4 kW ergibt. Durch die Einschleifung eines Arbeitskontaktes des ersten Schaltechützes in den Haltestromkreis des zweiten Schaltschützes und durch die Ausbild 4 des Verbindunge kontaktes der beiden Heizwiderstände als Ruhekontakt des eraten Schaltschützes ist erzielt, daß das zweite Schaltschütz dem ersten Schaltschiltz nachfolgend anzieht. Dadurch ist die erfindungsgemäße Shaltungsanordnung ohne weiteres zur verwendung an mehrphasigen Nutzen geeignet, weil nämlich durch die Schaltzeiten der beiden Schütze Lichtbogenerscheinungen am Verbindungskontakt der beiden Heizwiderstände beim Auflösen der Reihenschaltung vermieden sind.In the case of weak heating, the two heating resistors are, for example 2 kW each via the break contact of the first contactor as a connection contact in Row rntnet. The heating output of the device with weak heating is therefore 1 kW. In the event that the high-power heating is switched on, the two heating resistors are overlaid the working contacts of the two contactors individually on the network, so that there is a strong heating of 4 kW results. By looping in a working contact of the first switch contact into the holding circuit of the second contactor and through the training 4 of the connection contact of the two heating resistors is as a break contact of the eraten contactor achieved that the second contactor attracts the first Schaltschiltz subsequently. As a result, the circuit arrangement according to the invention can be used without further ado suitable for multi-phase use, because namely due to the switching times of the two Sagittarius Arc phenomena at the connection contact of the two heating resistors when dissolving the series connection are avoided.

Anhand der Zeichnung wird ein AusLührungsbeisplel der Erfindung näher beschrieben.A AusLührungsbeisplel of the invention is based on the drawing described.

Die Figur zeigt in schematischer Darstellung den Heizstromkreis eines nicht näher dargestellten Heißwasserspeicher. An dem durch eine Phase R und einen Mittelpunktsleiter Mp gebildeten Netz liegen die Heizwiderstände i, 2 über einen Ruhekontakt 13 eines ersten Schützes 10 in Reihe. Der Reihenschaltung des ersten neizwiderstandes 1, eines Temperaturreglers TR und des Arbeitskontaktes 13 ist ein Arbeitskontakt 22 eines zweiten Schutzes 20 parallelgeschaltet. Der Reihenschaltung des zweiten Heizsviderstandes 2 und des Arbeitskontaktes 13 ist ein Arbeitskontakt 12 des ersten SchUtzes parallelgeschaltet. Der Arbeitskontakt 12 kann ohne weiteres auch dem zweiten Schütz zugeordnet sein. Wichtig ist nur, daß der Ruhekontakt 13 dem ersten Schütz 10 und mindestens einer der Arbeitskontakte 12, 22 dem zweiten SchUtzes zugeordnet ist. Dadurch ist mit Sicherheit vermieden, daß während der Öffnungszeit des Ruhekontaktes 13 der an diesem möglicherweise entstehende Lichtbogen einen Kurzschluß zwischen der Phase R und dem Mittelpunktsleiter Mp verursachen kann, weil mindestens einer der Arbeitskontakte 12, 22 durch die Schaltzeiten der Schütze noch offen ist und die Verbindung zum Netz unterbricht. Der Ilaltestromkreis H 10 des ersten SchUtzes liegt über die Parallelschaltung eines als Taster TA ausgebildeten, willkürlich betätigbaren Kontaktes und eines Arbeitskontaktes 21 des zweiten Schütz 20 am Netz. Der Baltestronkreis z 20 des zweiten Schützes 20 liegt über einen Arbeitskontakt 14 des ersten SchUtzes und den Temperaturregler TR am Netz.The figure shows a schematic representation of the heating circuit of a hot water tank not shown in detail. On which by a phase R and a Center conductor Mp formed network are the heating resistors i, 2 over a Break contact 13 of a first contactor 10 in series. The series connection of the first heating resistor 1, a temperature controller TR and the normally open contact 13 is a Working contact 22 of a second protection 20 connected in parallel. The series connection the second heating resistor 2 and the normally open contact 13 is a normally open contact 12 of the first contactor connected in parallel. The normally open contact 12 can easily also be assigned to the second contactor. It is only important that the normally closed contact 13 the first contactor 10 and at least one of the working contacts 12, 22 the second Protection is assigned. This is sure to avoid that during opening hours of the normally closed contact 13, the arc that may occur at this short circuit between phase R and the neutral conductor Mp can cause at least one of the working contacts 12, 22 is still open due to the switching times of the contactors and the connection to the network is interrupted. The Ilaltestromkreis H 10 of the first contactor lies over the parallel connection of a button designed as a TA, arbitrarily actuatable contact and a working contact 21 of the second contactor 20 on the network. The Baltestronkreis z 20 of the second contactor 20 is via a normally open contact 14 of the first contactor and the temperature controller TR on the network.

Der Temperaturregler TR ist der Reihenschaltung der Heizwiderstknde 1, 2 und dem Erregerstroikreis H 20 des zweiten SchUtzes 20 vorgechaltet. Diese Anordnung hat den Vorteil, daß der Temperaturregler TR trotz seiner einpoligen Ausführung sowohl bei Schwach- Heizung als auch bei Starkheizung den Heizstromkreis des Gerätes voll beherrscht. Bei bekannten Aufbauformen war es erforderlich, den Temperaturregler mehrpolig auszuführen, um einerseits die Steuerung der Schwachheizung und andererseits die Abschaltung der Starkheizung bewirken zu können.The temperature controller TR is the series connection of the heating resistors 1, 2 and the excitation tri circuit H 20 of the second contactor 20 upstream. These Arrangement has the advantage that the temperature controller TR despite its single-pole design both for weak Heating as well as the heating circuit in the case of strong heating of the device fully mastered. In known designs, it was necessary to Multi-pole temperature controller to control the weak heating on the one hand and on the other hand to be able to switch off the heavy heating.

Mit dieser Schaltungsanordnung arbeitet das Gerät wie folgt: Wenn die Wassertemperatur unter einen Sollwert absinkt, schließt der Temperaturregler TR, so daß die Heizwiderstände 1, 2 reihengeschaltet sind. Damit ergibt sich bei einer Auslegung der lIeizwiderstände i, 2 zu jeweils 2kW eine Schwachheizung von 1 km.With this circuit arrangement, the device works as follows: If the water temperature falls below a set point, the temperature controller closes TR, so that the heating resistors 1, 2 are connected in series. This results in a design of the lIeizwideristors i, 2 of 2kW each a weak heating of 1 km.

Zur Einschaltung der Starkheizung wird der Tastschalter TA betätigt. Das Schütz 10 zieht an, wobei dessen Ruhekontakt 13 geöffnet wird. Die Reihenschaltung der Heizwiderstände 1, 2 ist damit unterbrochen. Gleichzeitig schließt der Arbeitskontakt 14, so daß der Haltestromkreis II 20 des zweiten SchUtzes 20 eingeschaltet wird. Beim Anzug des zweiten Schützes 20 schließt dessen Arbeitskontakt 21, so daß der flaltestromkreis II 10 des ersten Schmutzes 10 auch nach Loslassen des Tasters TA eingeschaltet bleibt. ueber die Arbeitskontakte 12, 22 sind nunmehr die Heizwiderstände 1, 2 ein geschaltet.To switch on the high-power heating, the TA pushbutton is actuated. The contactor 10 picks up, its normally closed contact 13 being opened. The series connection the heating resistors 1, 2 is interrupted. At the same time, the working contact closes 14, so that the holding circuit II 20 of the second contactor 20 is switched on. When the second contactor 20 closes its normally open contact 21, so that the Flaltestromkreis II 10 of the first dirt 10 even after releasing the button TA remains switched on. The heating resistors are now via the working contacts 12, 22 1, 2 switched on.

Die Starkheizung bleibt so lange eingeschaltet, bis der Temperaturregler TR öffnet und den Haltestromkreis fl 20 des zweiten Schützes unterbricht. Das zweite Schütz 20 fällt ab und unterbricht mit seinem Arbeitskontakt 21 den Haltestromkreis II 10 des ersten Schützes 10. Damit sind über den Ruhekontakt 13 die lIeizwiderstände 1, 2 wieder reihengeschaltet.The strong heating remains switched on until the temperature regulator TR opens and interrupts the holding circuit fl 20 of the second contactor. The second Contactor 20 drops out and interrupts the holding circuit with its normally open contact 21 II 10 of the first contactor 10. This means that the electrical resistances are via the normally closed contact 13 1, 2 again connected in series.

Der erfindungsgemäße Heißwasserbereiter ist besonders gut zur Verwendung an dreiphasigen Netzen R,S,T geeignet. In diesem Fall ist der Arbeitskontakt 22 über eine Brücke 13 2 an die Phase S und ein wciterer Heizwiderstand 3 über eine Brücke B 3 und einen weiteren Arbeitskontakt 24 des zweiten Schützes 20 an die Phase T zuschaltbar. Die Verbindung des Arbeitskontaktes 22 mit der Phase R wird durch Entfernung einer Brücke B i unterbrochen.The hot water heater of the present invention is particularly good for use suitable for three-phase networks R, S, T. In this case the normally open contact is 22 via a bridge 13 2 to phase S and a wciterer heating resistor 3 via a Bridge B 3 and a further working contact 24 of the second contactor 20 to the phase T can be activated. The connection of the normally open contact 22 with the phase R is through Removal of a bridge B i interrupted.

Bei Zuschaltung der Starkheizung wird über den Arbeitskontakt 24 zusätzlich der fleizwiderstand 3 in Betrieb genommen. Bei einer gleichmäßigen Ausbildung der Heizwiderstände 1, 2, 3 mit einer Ueizleistung von jeweils 2 kW ergibt sich dann ein Leistungsunterschied zwischen Schwachheizung und Starkheizung von 1:6. Dieses Verhältnis hat sich als optimal herausgestellt. Die Schwachheizung von 1 kW ist ausreichend, Heißwasserbereiter mit Füllinhalt bis zu 80 1 und mehr aufzuheizen und für einen entsprechenden Speicherbetrieb auf der erreicliten Temperaturstufe zu halten. Bei mehrfacher, zeitlich kurz aufeinanderfolgender Entnahme von Ileißwasser, z.B. zum Bereiten von Wannenbäder läßt sich mit der Starkheizung von 6 kW eine hinreichend rasche iederaufheizung des Gerätes erreichen.When the strong heating is switched on, the normally open contact 24 is also activated the fleizharz 3 put into operation. With a uniform formation of the Heating resistors 1, 2, 3 with a heating power of 2 kW each then result a difference in performance between low heating and high heating of 1: 6. This Relationship has turned out to be optimal. The weak heating of 1 kW is sufficient to heat up hot water heaters with a capacity of up to 80 liters and more and for a corresponding storage operation at the temperature level reached to keep. In the case of multiple, briefly successive withdrawals of lice water, E.g. for the preparation of bathtubs, the high-power heating of 6 kW can be sufficient achieve rapid reheating of the device.

5 Patentansprüche i Figur5 claims i figure

Claims (5)

Patentansprüche 1. Elektrischer Heißwasserbereiter mit zwei elektrischen Heizwiderständen, die in unterschiedlicher Schaltungsanordnung an ein Netz anschaltbar sind, d a d u r c h g e k e n n z e i c hn e t, daß die Reihenschaltung des einen Heizmriderstandes (1) und eines Ruekontaktes (13) eines ersten Schützes (10) einem Arbeitskontakt (22) eines zweiten Schützes (20) und die Reihen schaltung des anderen fleizwiderstandes (2) und des Ruliekontaktes (13) des ersten Schützes (10) einem Arbeitskontakt (12) des ersten Schützes (10) oder des zweiten Schützes (20)parallelgeschaltet sind, und daß der eine fleizwiderstand (1) über den Arbeitskontakt (12) des ersten Schützes (10) oder des zweiten Schützes (20) und der andere fleizwiderstand (2) über den Arbeitskontakt'(22) des zweiten Schützes (20) und der Haltestromkreis (H 20) des zweiten Schützes (20) über einen weiteren Arbeitskontakt (14) des ersten SchUtzes (10) über einen willkdrlich betätigbaren Kontakt an das Netz zuschaltbar sind.Claims 1. Electric hot water heater with two electric Heating resistors that can be connected to a network in different circuit arrangements are, that the series connection of the one Heizmriderstandes (1) and a Ruekontaktes (13) of a first contactor (10) a Normally open contact (22) of a second contactor (20) and the series circuit of the other fleizharzes (2) and the Ruliekontaktes (13) of the first contactor (10) one Working contact (12) of the first contactor (10) or the second contactor (20) connected in parallel are, and that the one fleizicherung (1) via the normally open contact (12) of the first Contactor (10) or the second contactor (20) and the other fleizicherung (2) Via the normally open contact '(22) of the second contactor (20) and the holding circuit (H 20) of the second contactor (20) via a further working contact (14) of the first Contactor (10) can be connected to the network via an arbitrarily actuatable contact are. 2. Heißwasserbereiter nach Anspruch i, mit einem auf den Heizstronkreis des Heißwasserbereiters wirkenden, von der Wassertemperatur beeinflußten Temperaturregler, dadurch gekennzeichnet, daß der Temperaturregler (TR) der Reihenschaltung der Heizwiderstände (i, 2) und dem Erregerkreis ( 20) des zweiten Schaltschützes (20) vorgeschaltet ist.2. Hot water heater according to claim i, with one on the Heizstronkreis the water heater's temperature regulator, which is influenced by the water temperature, characterized in that the temperature controller (TR) of the series connection of the heating resistors (i, 2) and the excitation circuit (20) of the second contactor (20) connected upstream is. 3. Heißwasserbereiter nach Anspruch i c r 2, dadurch gekennzeichnet, daß über einen weiteren Arbeitskontakt (24) des zweiten Schaltschützes (20) ein dritter Heizwiderstand (3) einschaltbar ist.3. hot water heater according to claim i c r 2, characterized in that that via a further working contact (24) of the second contactor (20) third heating resistor (3) can be switched on. 4. Heißwasserbcreiter nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß der willkürlich betätigbare Kontakt als Taster (TA) ausgebildet und daß dem Taster (TA) ein Arbeitskontakt (21) des zweiten Schützes parallelgeschaltet ist.4. hot water cup according to one of claims 1 to 3, characterized in that that the arbitrarily actuatable contact is designed as a button (TA) and that the Button (TA) a working contact (21) of the second contactor is connected in parallel. 5. Heißwasserbereiter nach einem der Ansprüche i bis 4, mit einem dritten Heizwiderstand zur Zuschaltung an ein dreiphasiges Netz, g e k e n n z e i c h n e t durch eine derartige Ausbildung der Schaltungsanordnung, daß der eine Heizwiderstand (i) über den Arbeitskontakt (12) des ersten Schutzes (10) an die erste Phase (R), der andere Heizwiderstand (2) über den Arbeitslcontakt (22) des zweiten Schützes (20) an die zweite Phase (s) und der dritte Heizwiderstand (3) über einen weiteren Arbeitsfcontakt (24) des zweiten SchUtzes (20) an die dritte Phase (T) zuschaltbar sind.5. Hot water heater according to one of claims i to 4, with a third heating resistor for connection to a three-phase network, g e k e n n z e i c h n e t by designing the circuit arrangement in such a way that one Heating resistor (i) via the normally open contact (12) of the first protection (10) to the first phase (R), the other heating resistor (2) via the Arbeitslcontakt (22) of the second contactor (20) to the second phase (s) and the third heating resistor (3) Via a further Arbeitsfcontakt (24) of the second contactor (20) to the third Phase (T) can be switched on. LeerseiteBlank page
DE2050128A 1970-10-13 1970-10-13 Electric hot water heater Expired DE2050128C3 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE2050128A DE2050128C3 (en) 1970-10-13 1970-10-13 Electric hot water heater
US05/631,331 US4043857A (en) 1970-10-13 1975-11-12 Method of joining plastic pipe

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE2050128A DE2050128C3 (en) 1970-10-13 1970-10-13 Electric hot water heater
US05/372,119 US3961814A (en) 1969-10-21 1973-06-21 Method of joining plastic pipe
US05/631,331 US4043857A (en) 1970-10-13 1975-11-12 Method of joining plastic pipe

Publications (3)

Publication Number Publication Date
DE2050128A1 true DE2050128A1 (en) 1972-05-18
DE2050128B2 DE2050128B2 (en) 1976-08-12
DE2050128C3 DE2050128C3 (en) 1978-10-05

Family

ID=27182927

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2050128A Expired DE2050128C3 (en) 1970-10-13 1970-10-13 Electric hot water heater

Country Status (2)

Country Link
US (1) US4043857A (en)
DE (1) DE2050128C3 (en)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2928391C2 (en) * 1979-07-13 1982-05-06 Joh. Vaillant Gmbh U. Co, 5630 Remscheid Heating flange for an electrically heated hot water device
US4327726A (en) * 1979-08-15 1982-05-04 Baxter Travenol Laboratories, Inc. Connector member for dissimilar materials
US4549752A (en) * 1981-08-13 1985-10-29 Umac, Inc. Connector for tubular members
US4457542A (en) * 1981-09-21 1984-07-03 Nibco Inc. Plastic pipe fitting
US4514244A (en) * 1981-09-21 1985-04-30 Nibco Inc. Plastic pipe elements and methods for making same
FR2549196B1 (en) * 1983-07-13 1985-12-27 Hutchinson IMPROVEMENTS IN OR RELATING TO BYPASS CONNECTIONS OBTAINED BY MOLDING A COVERING OF JOINT MATERIAL, IN PARTICULAR A TUBULAR RIGID INSERT, AND MANUFACTURING METHOD
US4507842A (en) * 1983-08-19 1985-04-02 John Werner Method of sealing and protecting a plastic lined pipe joint
DE3926662A1 (en) * 1989-08-11 1991-02-14 Pvg Patentverwertung Welding together polypropylene pipes - by using inner sleeve with centre outer rib, heating this and one pipe, pressing pipe over sleeve, cooling , and repeating with second pipe
FR2726626B1 (en) * 1994-11-07 1996-12-20 Hutchinson DEVICE FOR CONNECTING A PIPE TO AN INSERT
US20040161563A1 (en) * 2003-02-19 2004-08-19 Wellman Raymond L. Slip collar for joining fume duct sections
US20050012334A1 (en) * 2003-07-17 2005-01-20 Ingersoll-Rand Company Method of manufacturing flow connectors having overmolded inserts and product produced thereby
US20050011575A1 (en) * 2003-07-17 2005-01-20 Ingersoll-Rand Company Method of manufacturing flow connectors and product produced thereby
NZ560600A (en) * 2005-02-25 2009-07-31 Glynwed Pipe Systems Ltd Method for joining multi-layered pipe
US7488010B2 (en) * 2005-04-12 2009-02-10 Ats Products, Inc. Flange assembly
IL177035A (en) * 2006-07-23 2010-11-30 Sagiv Agudah Shitufit Chaklait Be Am Pipe fitting assembly and a method for forming it
US8752344B1 (en) * 2009-10-09 2014-06-17 Kevin M. Morris Roof vent pipe extension system
US8789852B2 (en) * 2011-04-27 2014-07-29 Hosebee, Llc Hose repair clamp
US20140265311A1 (en) * 2013-03-14 2014-09-18 Composite Fluid Transfer, LLC Inner coupler for joining non-metallic pipe method and system
US9285063B2 (en) 2013-06-22 2016-03-15 Mark L. Jones Connection fitting for connecting thermoplastic pipes

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB796304A (en) * 1956-04-16 1958-06-11 Sidney Edward Youthed An improved method and means for jointing thermoplastic synthetic resin pipes, pipe fittings and the like
US3035958A (en) * 1959-11-05 1962-05-22 Phillips Petroleum Co Method of joining polyethylene pipe
US3387864A (en) * 1965-07-19 1968-06-11 Amercoat Corp Pipe coupling
US3263323A (en) * 1965-10-21 1966-08-02 United Aircraft Corp Fabrication of a continuous peripheral joint
US3455761A (en) * 1966-02-18 1969-07-15 Cabot Corp Polymeric welding process and apparatus
US3307997A (en) * 1966-03-09 1967-03-07 Koppers Co Inc Method and apparatus for adhesively joining together contiguous thermosetting resin impregnated filament reinforced members
US3348863A (en) * 1967-04-14 1967-10-24 Goodrich Co B F Hose coupling
US3473833A (en) * 1967-12-28 1969-10-21 Nat Distillers Chem Corp Plastic pipe coupling
US3788928A (en) * 1971-03-26 1974-01-29 Sloane Mfg Co R & G Method of forming a lap joint between tubular articles of thermoplastic material
SE390802B (en) * 1973-11-27 1977-01-24 Atomenergi Ab PROCEDURE FOR ASSEMBLING DETAILS OF WORKED POLYMERS

Also Published As

Publication number Publication date
DE2050128C3 (en) 1978-10-05
DE2050128B2 (en) 1976-08-12
US4043857A (en) 1977-08-23

Similar Documents

Publication Publication Date Title
DE2050128A1 (en) Electric hot water heater
DE1463453A1 (en) Electric control system
DE2427625C3 (en) Circuit arrangement for connecting a heating device having a plurality of electrical heating elements to the electrical network
DE2118407A1 (en) Arrangement for power control with electric hotplates
DE2263563A1 (en) STAR-TRIANGLE SWITCHES COMPOSED OF PROTECTIVE
DE3719308C2 (en)
DE2154523C3 (en) Electrically heated water heater
DE3631226C2 (en)
DE666554C (en) Circuit arrangement for quickly heating up electric hotplates, roasters or similar electric heating points
DE2151163A1 (en) ELECTRIC HOT WATER HEATER
DE637009C (en) Device to prevent restarting, especially of electric motors, with a series resistor with negative characteristics
DE3902345C2 (en) Electric water heater
DE548197C (en) Arrangement of automatic off switches to reduce power consumption
DE281827C (en)
DE477692C (en) Setting device for direct current overcurrent switches, especially for fast acting direct current overcurrent switches
DE2556433B2 (en) Arrangement for power control of electric hotplates
AT144449B (en) Electrically heated device.
DE1246900B (en) Electrically heated hot and boiling water heater
DE329789C (en) Circuit arrangement for regulating the secondary voltage in measuring transformers
DE1954987A1 (en) Electric hot water heaters, especially water heaters
DE365092C (en) Device for automatic control of heat generation in electrical heating devices with divided heating resistance
DE514189C (en) Device to prevent the inadmissible reconnection of switches in power distribution systems
AT134922B (en) Electrical system with one or more discharge tubes that contain a gas filling, a cathode and two or more anodes.
DE2353667C3 (en) Instantaneous water heater with thermal control
DE19500522A1 (en) Electric water heater esp. hot water storage with three electric heating elements

Legal Events

Date Code Title Description
C3 Grant after two publication steps (3rd publication)
8320 Willingness to grant licences declared (paragraph 23)
8339 Ceased/non-payment of the annual fee