Level sensing switch
Description
Claims
The ornamental design for a level sensing switch, as shown and described.
Referenced Cited
U.S. Patent Documents
Other references
308193 | May 1884 | Gaalswyk |
4211966 | July 8, 1980 | Sweet |
4240747 | December 23, 1980 | Harmer |
4265262 | May 5, 1981 | Hotine |
4297588 | October 27, 1981 | Hastbacka |
4366384 | December 28, 1982 | Jensen |
4736077 | April 5, 1988 | Valente |
D308193 | May 29, 1990 | Gaalswyk |
4922857 | May 8, 1990 | Arentoft |
5005407 | April 9, 1991 | Koon |
5035581 | July 30, 1991 | McGuire et al. |
5166667 | November 24, 1992 | Jen |
5198681 | March 30, 1993 | Pontefract |
D342033 | December 7, 1993 | Mealer |
D350491 | September 13, 1994 | Hausler et al. |
D358784 | May 30, 1995 | Templin et al. |
5425624 | June 20, 1995 | Williams |
D363887 | November 7, 1995 | Middlebrook |
5473234 | December 5, 1995 | Richardson |
5740693 | April 21, 1998 | Tanaka |
5747824 | May 5, 1998 | Jung et al. |
D430049 | August 29, 2000 | Flick et al. |
6111211 | August 29, 2000 | Dziedzic et al. |
D440896 | April 24, 2001 | Asai et al. |
D453697 | February 19, 2002 | Parsons |
6499961 | December 31, 2002 | Wyatt et al. |
6507401 | January 14, 2003 | Turner et al. |
6538261 | March 25, 2003 | McConnel et al. |
6753785 | June 22, 2004 | Denietolis, Jr. |
6806947 | October 19, 2004 | Ekdahl et al. |
D501803 | February 15, 2005 | Platzek |
6925871 | August 9, 2005 | Frank |
20060272710 | December 7, 2006 | Minervini et al. |
20070084281 | April 19, 2007 | Fredriksson |
- www.southcountrylivestock.com webpage showing the applicant's Bin Level Switch; Tube Switch; Cable/Chain Drive Switch . . . with last digital photo dated Mar. 5, 2006.
Patent History
Patent number: D570296
Type: Grant
Filed: Jan 10, 2006
Date of Patent: Jun 3, 2008
Inventors: Daniel D. Wipf (Cut Bank, MT), Phillip J. Wipf (Cut Bank, MT)
Primary Examiner: Selina Sikder
Assistant Examiner: Thomas J Johannes
Attorney: Antoinette M. Tease
Application Number: 29/251,570
Type: Grant
Filed: Jan 10, 2006
Date of Patent: Jun 3, 2008
Inventors: Daniel D. Wipf (Cut Bank, MT), Phillip J. Wipf (Cut Bank, MT)
Primary Examiner: Selina Sikder
Assistant Examiner: Thomas J Johannes
Attorney: Antoinette M. Tease
Application Number: 29/251,570
Classifications
Current U.S. Class:
Switch Or Casing Therefor (18) (D13/158)