CA Patent

CA2976223A1 — Rolling door construction for controlling air leakage

Assigned to Raynor Manufacturing Co · Expires 2018-02-12 · 8y expired

What this patent protects

An overhead, rolling door includes a peripheral seal construction that restricts air flow heat transfer through the periphery of a door opening. The door comprises a flexible curtain mounted on an overhead drum located above the door opening. The curtain may be unwound from the d…

USPTO Abstract

An overhead, rolling door includes a peripheral seal construction that restricts air flow heat transfer through the periphery of a door opening. The door comprises a flexible curtain mounted on an overhead drum located above the door opening. The curtain may be unwound from the drum and lowered to close the door opening and engages the seal to preclude air flow energy loss through the door opening. The seal is comprised of unitary, elastomeric, elongate, flexible blades mounted on brackets positioned around the periphery of the door opening. The blades function as flexible cantilever mounted seals with an outer end that fits tightly against the surface of the closed door to form an uninterrupted seal of the closed door opening.

Drugs covered by this patent

Patent Metadata

Patent number
CA2976223A1
Jurisdiction
CA
Classification
—
Expires
2018-02-12
Drug substance claim
No
Drug product claim
No
Assignee
Raynor Manufacturing Co
Source
FDA Orange Book + USPTO grounding via Google Patents

Bibliographic data sourced from FDA Orange Book + USPTO public records. Plain-English summary generated by AI grounded in source text. Patent term extensions (PTR, SPC, pediatric) may shift the effective expiry. Not legal advice.

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