The Product Types Ontology for Semantic Web-based E-Commerce
type: Ontology
imports: v1
title: PTO: The Product Types Ontology for Semantic Web-based E-Commerce
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.
license: http://creativecommons.org/licenses/by-sa/3.0/
version info: 2026-08-28T18:28:54.189557
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

Gasket
type: Class
subclass of: ProductOrService
subclass of: Product
comment: thumb|Some seals and gaskets A gasket is a mechanical seal which fills the space between two or more mating surfaces, generally to prevent leakage from or into the joined objects while under compression. It is a deformable material that is used to create a static seal and maintain that seal under various operating conditions in a mechanical assembly. Gaskets allow for "less-than-perfect" mating surfaces on machine parts where they can fill irregularities. Gaskets are commonly produced by cutting from sheet materials. Given the potential cost and safety implications of faulty or leaking gaskets, it is critical that the correct gasket material is selected to fit the needs of the application. Gaskets for specific applications, such as high pressure steam systems, may contain asbestos. However, due to health hazards associated with asbestos exposure, non-asbestos gasket materials are used when practical. It is usually desirable that the gasket be made from a material that is to some degree yielding such that it is able to deform and tightly fill the space it is designed for, including any slight irregularities. Some types of gaskets require a sealant be applied directly to the gasket surface to function properly. Some (piping) gaskets are made entirely of metal and rely on a seating surface to accomplish the seal; the metal's own spring characteristics are utilized (up to but not passing σy, the material's yield strength). This is typical of some "ring joints" (RTJ) or some other metal gasket systems. These joints are known as R-con and E-con compressive type joints. Some gaskets are dispensed and cured in place. These materials are called formed-in-place gaskets. (Source: Wikipedia, the free encyclopedia, see http://en.wikipedia.org/wiki/Gasket)
label: መድፈኛ @am
label: حشية @ar
label: Xunta d'estanqueidá @ast
label: Kipləşdirici @az
label: Плосък уплътнител @bg
label: Junta d'estanquitat @ca
label: Těsnění @cs
label: Pakning @da
label: Flachdichtung @de
label: Junta de estanqueidad @es
describedby: Gasket.rdf
describedby: Gasket.ttl