Communications: electrical – Condition responsive indicating system – Specific condition
Reexamination Certificate
2006-04-18
2006-04-18
Hofsass, Jeffery (Department: 2636)
Communications: electrical
Condition responsive indicating system
Specific condition
C340S612000, C073S30400R
Reexamination Certificate
active
07030768
ABSTRACT:
A device for monitoring the level or amount of a material within a container is provided. The device includes a detection mechanism that can be a direct detection mechanism or an indirect detection mechanism. When the detection mechanism senses an upper level of the substance in the container that is below a predetermined lower limit for the substance, the mechanism operates an alarm mechanism to emit an audible and/or visible alarm to alert an individual to the low level of the substance within the container. The alarm mechanism can be integrally formed with the detection mechanism, or can be spaced from the detection mechanism in order to provide a more accessible point for the viewing or hearing of the alarm emitted by the alarm mechanism.
REFERENCES:
patent: 4169543 (1979-10-01), Hall
patent: 4332678 (1982-06-01), Spiegl
patent: 4986902 (1991-01-01), Serna
patent: 4987409 (1991-01-01), Jackson
patent: 5132669 (1992-07-01), Jackson
patent: 5147531 (1992-09-01), Dougal
patent: 5239205 (1993-08-01), Hoffman et al.
patent: 5239285 (1993-08-01), Rak
patent: 5297428 (1994-03-01), Carr et al.
patent: 5340954 (1994-08-01), Hoffman et al.
patent: 5363087 (1994-11-01), Johannsen et al.
patent: 5477727 (1995-12-01), Koga
patent: 5512834 (1996-04-01), McEwan
patent: 5818128 (1998-10-01), Hoffman et al.
patent: 5832772 (1998-11-01), McEwan
patent: 6014076 (2000-01-01), Luzzader
patent: 6016697 (2000-01-01), McCulloch et al.
patent: 6023159 (2000-02-01), Heger
patent: 6188228 (2001-02-01), Philipp
patent: 6192693 (2001-02-01), Kloppenberg et al.
patent: 6218949 (2001-04-01), Issachar
patent: 6281802 (2001-08-01), Venable et al.
patent: 6287458 (2001-09-01), Lawrence
patent: 6309551 (2001-10-01), Suchecki, Jr. et al.
patent: 6456202 (2002-09-01), Johannsen et al.
patent: 6490920 (2002-12-01), Netzer
patent: 6650126 (2003-11-01), Indihar
patent: 6661239 (2003-12-01), Ozick
patent: 6672155 (2004-01-01), Muller et al.
patent: 6674141 (2004-01-01), Kubena et al.
patent: 2001/0054966 (2001-12-01), Johannsen et al.
patent: 2002/0149489 (2002-10-01), Bearak
patent: 2002/0178808 (2002-12-01), Hafer
patent: 2004/0046672 (2004-03-01), Kasik et al.
“Ultra-Thin Capacaitive Flat Pak Proximity Sensors Offer Versatile Mounting & Long Range”, Minneapolis, MN, Oct. 10, 2001, Press Release—QF 5.5.
Boyle Fredrickson Newholm Stein & Gratz S.C.
Hofsass Jeffery
Stone Jennifer
LandOfFree
Water softener monitoring device does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Water softener monitoring device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Water softener monitoring device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3575531