Non-return device

A non-return device (10) for use with a waste trap is described. The non-return device comprises a sealing portion (12) having first and second sheet members (14, 16), a device inlet (18), a device outlet (20) and a transition portion (22) providing fluid communication between the device inlet and t...

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Bibliographic Details
Main Authors McAlpine James Edward, McAlpine James Kenneth
Format Patent
LanguageEnglish
Published 14.02.2017
Subjects
ACTUATING-FLOATS
BLASTING
COCKS
DEVICES FOR VENTING OR AERATING
DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER
ENGINEERING ELEMENTS AND UNITS
FIXED CONSTRUCTIONS
FLUSHING VALVES THEREFOR
GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS
GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC
GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS
HEATING
LIGHTING
MECHANICAL ENGINEERING
SEWERAGE
SINKS
TAPS
TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
TECHNICAL SUBJECTS COVERED BY FORMER USPC
TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
THERMAL INSULATION IN GENERAL
VALVES
WATER SUPPLY
WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES
WEAPONS
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Summary:A non-return device (10) for use with a waste trap is described. The non-return device comprises a sealing portion (12) having first and second sheet members (14, 16), a device inlet (18), a device outlet (20) and a transition portion (22) providing fluid communication between the device inlet and the sealing portion. The transition portion has a convex section of wall (24).
Bibliography:Application Number: US201013511393