Abstract

A roller assembly includes a frame defining a doorway. A rail, which includes at least one supporting surface along at least one side of the rail, is secured to the frame. At least one roller, which is adapted to roll along the supporting surface of the rail, has a tire material that contacts the rail. …

Legal parties

Party
Inventors (applicants): Xiaomei Yu, Mikhail B. Gorbounov, Jinliang Wang, Zlatko Strbuncelj, John M. Milton-Benoit
Assignees (initial): Otis Elevator Company (Farmington, US)
Agents: Kinney & Lange, P.A. (attorney)

The application was examined by Andriana Figueroa (USPTO dept. 3633)

Claims

  • 1. A door assembly comprising: …
  • 2. The assembly of claim 1 , wherein the thermal barrier covers the supporting surface …
  • 3. The assembly of claim 1 , wherein the thermal barrier covers at least a portion …

Cited documents

Patents

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Drawings

Brief Description of the Drawings

These and other features, aspects, and advantages of the present invention will become apparent from the following description, appended claims, and the accompanying exemplary embodiments shown in the drawings …

Description

Cross-Reference to Related Applications

Reference is hereby made to the following co-pending applications, which were filed on even date with the current application: “INTUMESCENT THERMAL BARRIER FROM HUB TO TIRE”, Wang et al., application …

Detailed Description

Through the inventors' efforts, it has been determined that during a fire, door assemblies may experience elevated temperatures through convective, conductive, and/or radiated heat. Door components, including the door hanger …

More details about Thermal Barriers of Elevator Door Roller and Rail

Miscellaneous patent data

The invention description is illustrated by 6 drawings, the assignee organization is Otis Elevator Company, located in Farmington (US), similar patents are classified under Upholstery trim, divider between and holding insulating layer, rotatable lamellae, Integral penetrating means, Means for allowing passage through fences, barriers, or the like, e.g. stiles, Peep-holes, Devices for speaking through, Doors having windows, Details of lamellae, Constructions depending on the use of specified materials, Protruding tying means (hook or eyebolt) embedded in unit at other end, Discrete dissimilar tie between stonelike components, the invention is named Thermal Barriers of Elevator Door Roller and Rail, 13 figures depict the invention details, assigned to a United States company, the exemplary claims include number 1, the exemplary patent drawings are Thermal Barriers of Elevator Door, Front elevation view illustrating a conventional, Cross-sectional view of an alternate, Cross-sectional view of an upper, the application number is 13/059,118 (U.S.), the known agent - Kinney & Lange, P.A., the application publication date is Oct. 6, 2008, the applicant's state - CT, city - West Suffield, the published applicant's name is Milton-Benoit John M., the inventor's address - Glastonbury, CT, the inventor's first name is Xiaomei, and his last name is Yu, the examination was conducted by Andriana Figueroa, the main examiner (3633 USPTO department), the grant publication number is 08640426, the grant date is Feb. 4, 2014 (publication date), claims 1-30 comprise the invention scope, invented by John M. Milton-Benoit et al., the primary classification Fire resistant has been designated to the document, particularly claims a door assembly comprising…

Invention classification information

The invention is classified under Including slideably mounted barrier on load support, Fireproof doors or similar closures, Adaptations of fixed constructions therefor, Elevator in multistory, Fire resistant. The designated search classifications include Slideably mounted, Filler of cooperating, void-forming sections, Elevator in multistory, Fire resistant, With specific electrical control therefor, Fire resistant, Including slideably mounted barrier on load support, Irreversibly Reactive Component.

Patent details
Publication number 08640426
Publication date Feb. 4, 2014
Kind code B2
Application number 13/059,118
Application date Oct. 6, 2008
Application type U
Application series code 13
Int. pub. country WO
Int. pub. number WO2010/042098
Int. publication Apr. 15, 2010
Int. filing country WO
Int. filing PCT/US2008/078909
Filed internationally Oct. 6, 2008
National stage date Feb. 15, 2011
National classification 52/783.13
Total number of claims 30
Exemplary claims 1
Number of drawings 6
Number of figures 13
Terminal disclaimer
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