Quick connect ceiling fan blade
US6902375B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 1, 2003 |
| Grant date | Jun 7, 2005 |
| Priority date | — |
| Expiry date | May 1, 2023 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04D29/34
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A ceiling fan (10) is disclosed having a motor housing (11) with an electric motor (13) to which is mounted an annular array of blade irons (14) each having a blade (15) and a locking plate (17) mounted thereto. Each blade iron has three locking pins (26). Each locking pin has a shaft (27) extending to a head (28). Each blade 15 has three key-hole shaped locking pin mounting holes (31) extending therethrough, a top surface (32) and a pair of alignment pins (33) extending from the top surface. The three locking pin mounting holes are configured and oriented to receive the blade iron locking pins. Each locking plate has a top surface (36), three locking pin mounting holes (37), a pair of alignment pin slots (38) and a thumb tab (39). The three locking pin mounting holes are configured and oriented to receive and releasably lock with the blade iron locking pins. With the locking pins extending through the blade mounting holes and the locking plate mounting holes the locking plate is pushed outboard to its locked position preventing movement of the blade.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.