Engineering:The Clapper
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Short description: Sound activated electrical switch
The Clapper is a sound-activated electrical switch,[1] sold since 1984 by San Francisco , California based Joseph Enterprises, Inc. Joseph Pedott marketed the clapper with the slogan "Clap On! Clap Off! The Clapper!".[2]
The Clapper plugs into a U.S.-type electrical outlet, and allows control of up to two devices plugged into the Clapper.[3] An upgraded model, known as the Clapper Plus, includes a remote control function in addition to the original sound-based activation.[4]
Although meant to activate by clapping, The Clapper can inadvertently be triggered by other noises.[5]
Patent
The Clapper was invented by Carlile R. Stevens and Dale E. Reamer, and issued U.S. Patent #5493618, which was published on 20 February 1996.[6]
References
- ↑ "A tale of useless toys". The Free Lance-Star. January 10, 2003. https://news.google.com/newspapers?id=twIzAAAAIBAJ&sjid=UggGAAAAIBAJ&pg=6224%2C2334666. Retrieved 24 December 2013.
- ↑ Harry, Lou; Stall, Sam (2002). "The Clapper". As Seen on TV: 50 Amazing Products and the Commercials that Made Them Famous. California: Chronicle Books. pp. 90–91. ISBN 978-1-931686-09-9. https://books.google.com/books?id=Q8_sMBcCVqEC&dq=%22the%20clapper%22%20clap%20on&pg=PT93.
- ↑ "The Clapper: Does It Work?". KCBD News. December 25, 2002. http://www.kcbd.com/Global/story.asp?S=1059890. Retrieved 24 December 2013.
- ↑ Lam, Brian (August 30, 2010). "The 21st Century Clapper". https://gizmodo.com/5624015/the-21st-century-clapper. Retrieved 24 December 2013.
- ↑ "The Clapper: "Does It Work?"". KTRE News. http://www.ktre.com/story/16366556/the-clapper-does-it-work. Retrieved 24 December 2013.
- ↑ "Method and apparatus for activating switches in response to different acoustic signals". https://www.google.com/patents/US5493618. Retrieved 2 November 2017.
Further reading
- Kauffman, Matthew (February 6, 2005). "Thumbs Down For The Clapper". Hartford Courant. http://articles.courant.com/2005-02-06/business/0502060305_1_clapper-plugs-auld-lang. Retrieved 24 December 2013.
External links
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