公开(公告)号：US20190225456A1

公开(公告)日：2019-07-25

申请号：US15879626

申请日：2018-01-25

Applicant: Raynor Mfg. Co.

Inventor： Joel M. Bonnell

IPC: B65H75/44 ,  E05F15/686

Abstract: A drum construction for an overhead garage door lift assembly includes a spiral groove comprised of three connected sections each having a distinct sequence of radii to facilitate raising and lowering of a multi-panel garage door mounted on a track in a manner which avoids undesirable surface impact of the door upon closing and enhances torque energy for lifting from the closed position.

公开(公告)号：US20180044977A1

公开(公告)日：2018-02-15

申请号：US15630069

申请日：2017-06-22

Applicant: Raynor Mfg. Co.

Inventor： Joel M. Bonnell ,  Matthew S. Reutzel

IPC: E06B9/17 ,  E06B9/15 ,  E06B9/58

CPC classification number: E06B9/17076 ,  E06B9/15 ,  E06B9/582 ,  E06B2009/17069 ,  E06B2009/17084 ,  E06B2009/588

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.