DISPOSITIVOS DE AQUECIMENTO ELÉTRICO PTC

PTC electrical heating devices are disclosed which are suitable to vaporize air treatment chemicals from an impregnated slab, such as insect repellents. In one form an electrical contact to a PTC heater element is provided with a bowl-shaped contact head to reduce the risk of edges of the contact cr...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	RAECHELL MARIA THUOT
Format:	Patent
Sprache:	por
Schlagworte:	AGRICULTURE ANIMAL HUSBANDRY APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUSPLANTS BASIC ELECTRIC ELEMENTS CATCHING, TRAPPING OR SCARING OF ANIMALS CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, ORSURGICAL ARTICLES DISINFECTION, STERILISATION, OR DEODORISATION OF AIR ELECTRICITY FISHING FORESTRY HUMAN NECESSITIES HUNTING HYGIENE MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICALARTICLES MEDICAL OR VETERINARY SCIENCE METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS INGENERAL RESISTORS TRAPPING
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Beschreibung
Zusammenfassung:	PTC electrical heating devices are disclosed which are suitable to vaporize air treatment chemicals from an impregnated slab, such as insect repellents. In one form an electrical contact to a PTC heater element is provided with a bowl-shaped contact head to reduce the risk of edges of the contact cracking the heater element. In other forms peg and recess structures interact with apertures on a heat transfer plate to facilitate assembly of the parts of the structure.