Invention Grant
- Patent Title: Elevator ceiling ventilation cavity
- Patent Title (中): 电梯吊顶通风腔
-
Application No.: US11631136Application Date: 2005-02-03
-
Publication No.: US08500525B2Publication Date: 2013-08-06
- Inventor: Daniel G. Opoku , Murllo W. Bonilha , Wenlong Li , Goldino Alves , Vijay Jayachandran
- Applicant: Daniel G. Opoku , Murllo W. Bonilha , Wenlong Li , Goldino Alves , Vijay Jayachandran
- Applicant Address: US CT Farmington
- Assignee: Otis Elevator Company
- Current Assignee: Otis Elevator Company
- Current Assignee Address: US CT Farmington
- Agency: Carlson, Gaskey & Olds, PC
- International Application: PCT/US2005/006615 WO 20050203
- International Announcement: WO2006/011914 WO 20060202
- Main IPC: B66B11/024
- IPC: B66B11/024 ; G10K11/161 ; F24K2013/245

Abstract:
An elevator cab ceiling includes an upper ceiling panel and a lower ceiling panel that are vertically spaced apart from each other with an intermediate ceiling cavity between them. An inlet duct is associated with the upper ceiling panel and an outlet duct is associated with the lower ceiling panel. The inlet and outlet ducts are horizontally spaced apart from each other and are fluidly connected to each other through the intermediate ceiling cavity to form a ventilation path. This separation of inlet and outlet ducts by an intermediate ceiling cavity reduces airborne noise transmissions that enter an elevator cab through the ventilation path. In one example, at least one baffle is installed within the intermediate ceiling cavity between the inlet and outlet ducts to interrupt a flow between the inlet and outlet to further reduce any transmitted noise.
Public/Granted literature
- US20100126810A1 Elevator ceiling ventilation cavity Public/Granted day:2010-05-27
Information query