Lighting equipment United States Patent 04381539

04381539 is referenced by 5 patents and cites 3 patents.

A lighting equipment of pendant type comprising:

Title
Lighting equipment
Application Number
6/266146
Publication Number
4381539
Application Date
May 22, 1981
Publication Date
April 26, 1983
Inventor
Shoji Sakurai
Sakai
JP
Agent
Cushman Darby & Cushman
Assignee
Matsushita Electric Works
JP
IPC
F21V 21/16
View Original Source

Citations: 5

  1. John W Falls, Garry L Rolen: Motorized chandelier lift system. Walker & McKenzie, April 14, 1992: US05105349 (29 worldwide citation)
  2. Alejandro Mier Langner, Robert Scott Gosnell, James E Kuchar: Luminaire pendant system. Genlyte Thomas Group, Middleton Reutlinger, January 18, 2005: US06843581 (13 worldwide citation)
  3. Jeong Hoon Sin: Equipment for highly mounted lamp having ascending and descending function. Jones Day, April 25, 2006: US07033048 (5 worldwide citation)
  4. John W Falls: Winch safety switch for a hoist. Aladdin Light Lift, Walker McKenzie & Walker P C, August 12, 2008: US07410150 (3 worldwide citation)
  5. Jia Luo: Device for adjusting height of suspended lamp. Sinowell, Alston & Bird, December 4, 2018: US10145543

References: 3

  1. Richard L Thompson: Luminaire hoist safety device with automatic brake means adjacent top cable guide. General Electric Company, Sidney Greenberg, Lawrence R Kempton, March 25, 1980: US04195332 (7 worldwide citation)
  2. May, 1909: US951520
  3. June, 1961: IT621433