Bronchial flow control devices and methods of use

Non-return valve

Mains pressure flusher valve

Valve assemblies principally for automatic swimming pool cleaner

One-way medical valve apparatus

Inflatable decubitis mat with vent structures controlled by heat sensors

Retractable writing instrument

Check valve

Multi-channel flat valve assembly for use within a dunnage or cargo air bag, and apparatus and method for installing same

Structure of fluid container and method and apparatus for producing the fluid container

Bite valve

Structure of fluid container and method and apparatus for producing the fluid container

Valves and methods for manufacturing the valves

Valve adapter

ONE-PIECE SOFT SPOUT VALVE ASSEMBLY FOR A NO-SPILL DRINKING CUP

Valve mechanism of the bladders of an air packing bag

Check valve and pump including check valve

Stacked membrane for pressure actuated valve

Rotary moulding

Valve

Avoidance of resonance in the inflatable sport ball by limiting the critical ratio

Combination fill and safety valve

Vehicle pressure relief valve having peripherally secured flaps and method of manufacturing the same

Flow control element for use with leak-proof cup assemblies

Methods and devices for use in performing pulmonary procedures

Pressure actuated valve with improved slit configuration

Check valve

Split manifold and method for multiple part fluid applications

Check valve

Bite valve with hollow valve core

Crossover prevention valve

Multi-purpose valve for extending shelf-life using vacuuming or injecting gas