Valved device
First Claim
1. A valved device including a chamber, an outer pipe having an interior portion which normally communicates in fluid-tight manner with the interior of said chamber, an opening being provided in said outer pipe and communicating said interior portion with the exterior of said outer pipe, and a hollow valve member attached in surrounding relationship with said outer pipe in such a manner that said opening is normally closed by said valve member, said valve member being adapted to be rolled up on itself along said outer pipe into a ring-shaped configuration whereby said opening is exposed to permit discharge of said fluid, said valve member being attached to a tapered surface of said outer pipe, the valve member being formed of an elastic material with sufficient elasticity such that the valve member normally resists being rolled up on itself and is elastically restored by its elastic force to its original state to close said opening when rolling force is removed, said chamber comprising an envelope connected to said outer pipe, said envelope being adapted to elastically expand and contract, and wherein said envelope is adapted to be expanded by forcibly supplying a fluid through said pipe, and said envelope contracts by the action of its elastic force so that a fluid in said envelope is discharged through said pipe and said exposed opening when said valve member is rolled up.
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Accused Products
Abstract
A fluid such as air is tightly enclosed in a chamber which serves to plug an organic passage such as a person'"'"'s nasal cavity. The fluid is supplied into the chamber through a tube so as elastically to expand the chamber and thereafter is discharged through a valve device comprising an opening formed in the tube and a valve member which normally closes the opening but can be rolled up on itself so that the fluid in the chamber can flow out through the opening.
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Citations
8 Claims
- 1. A valved device including a chamber, an outer pipe having an interior portion which normally communicates in fluid-tight manner with the interior of said chamber, an opening being provided in said outer pipe and communicating said interior portion with the exterior of said outer pipe, and a hollow valve member attached in surrounding relationship with said outer pipe in such a manner that said opening is normally closed by said valve member, said valve member being adapted to be rolled up on itself along said outer pipe into a ring-shaped configuration whereby said opening is exposed to permit discharge of said fluid, said valve member being attached to a tapered surface of said outer pipe, the valve member being formed of an elastic material with sufficient elasticity such that the valve member normally resists being rolled up on itself and is elastically restored by its elastic force to its original state to close said opening when rolling force is removed, said chamber comprising an envelope connected to said outer pipe, said envelope being adapted to elastically expand and contract, and wherein said envelope is adapted to be expanded by forcibly supplying a fluid through said pipe, and said envelope contracts by the action of its elastic force so that a fluid in said envelope is discharged through said pipe and said exposed opening when said valve member is rolled up.
Specification