PTO: The Product Types Ontology for Semantic Web-based E-Commerce
type: Ontology
comment: The Product Types Ontology: Good identifiers for product types based on Wikipedia This service provides GoodRelations-compatible class definitions for any type of product or service that has an entry in the English Wikipedia. Vocabulary: http://www.productontology.org/# Namespace: http://www.productontology.org/ The Product Types Ontology is designed to be used in combination with GoodRelations, a standard vocabulary for the commercial aspects of offers. See http://purl.org/goodrelations/ for more information.
label: The Product Types Ontology for Semantic Web-based E-Commerce
contributor: The class abstracts and translations of labels are taken from Wikipedia, the free encyclopedia.
creator: Martin Hepp
rights: The class definition texts are taken from Wikipedia, the free encyclopedia under a Creative Commons Attribution-ShareAlike 3.0 Unported (CC BY-SA 3.0) license, see http://creativecommons.org/licenses/by-sa/3.0/. Accordingly, all ontology class definitions provided in here are available under the very same license.
subject: E-Commerce, E-Business, GoodRelations, Ontology, Wikipedia, DBPedia
license: http://creativecommons.org/licenses/by-sa/3.0/
imports: v1
version info: 2026-08-28T18:29:20.158597

Wax thermostatic element
type: Class
subclass of: ProductOrService
subclass of: Product
comment: The wax thermostatic element was invented in 1934 by Sergius Vernet (1899–1968). Its principal application is in automotive thermostats used in the engine cooling system. The first applications in the plumbing and heating industries were in Sweden (1970) and in Switzerland (1971). Wax thermostatic elements transform heat energy into mechanical energy using the thermal expansion of waxes when they melt. This wax motor principle also finds applications besides engine cooling systems, including heating system thermostatic radiator valves, plumbing, industrial, and agriculture. (Source: Wikipedia, the free encyclopedia, see http://en.wikipedia.org/wiki/Wax_thermostatic_element)
label: Calorstat @fr
label: Elemento termostatico a cera @it
label: Termostat (silnik spalinowy) @pl
label: Mum termostatik eleman @tr
label: Клапан-термостат @uk
describedby: Wax thermostatic element.rdf
describedby: Wax thermostatic element.ttl