Two-way damper
First Claim
1. A two-way damper comprising:
- a retaining ring having an open center with a centerpoint;
a valve member comprising a plurality of flexible and resilient leaves arranged around said ring, each leaf having a fixed proximal end secured to said retaining ring and a free distal end located toward said centerpoint of said ring, said leaves being movable relative to each other and arranged such that substantially the entire open center of said ring is occupied by said leaves.
1 Assignment
0 Petitions
Accused Products
Abstract
A two-way damper is provided including a retaining member and a baffle. The baffle comprises a flexible member with a first portion secured and held in a fixed position by the retaining member and a second portion normally oriented in a first position, but free to move relative to said first position. The baffle also comprises a third portion, arranged between the first and second portions, being flexible and resilient and allowing the second portion to move to a second position relative to the first position upon the application of a pressure differential across the baffle above a threshold pressure and causing the second portion to return to the first position upon the application of a pressure differential across the baffle below the threshold pressure.
9 Citations
25 Claims
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1. A two-way damper comprising:
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a retaining ring having an open center with a centerpoint;
a valve member comprising a plurality of flexible and resilient leaves arranged around said ring, each leaf having a fixed proximal end secured to said retaining ring and a free distal end located toward said centerpoint of said ring, said leaves being movable relative to each other and arranged such that substantially the entire open center of said ring is occupied by said leaves. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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- 15. A two-way damper comprising a retaining member and a baffle, said baffle comprising a flexible member with a first portion secured and held in a fixed position by said retaining member and a second portion normally oriented in a first position, but free to move relative to said first position, a third portion, arranged between said first and second portions being flexible and resilient and allowing said second portion to move to a second position relative to said first position upon the application of a pressure differential across said baffle above a threshold pressure and causing said second portion to return to said first position upon the application of a pressure differential across said baffle below said threshold pressure.
- 21. A two-way damper comprising a combination of a baffle and a retaining member, said baffle comprising a generally circular flexible member with a first portion, at a portion of a periphery of said member, secured and held in a fixed position by said retaining member, a second portion spaced from said retaining member normally oriented in a first position, but free to move relative to said first position, and a third portion, arranged between said first and second portions, being flexible and resilient and allowing said second portion to move to a second position relative to said first position upon the application of a pressure differential across said baffle above a threshold pressure and causing said second portion to return to said first position upon the application of a pressure differential across said baffle below said threshold pressure.
Specification