Abstract: A device for controlling odor from a toilet bowl has a housing primarily formed by a top member, a bottom member and a canister holding section for attaching to the bottom member. The canister holding section holds a canister having a nozzle for providing an odor treating spray from the canister. The housing also has two plates depending downwardly from the bottom member and which form an inverted U-shape for mounting the device on a rim of the toilet bowl. Between the top member and bottom member is a biasing device such as springs for biasing a seat of the toilet bowl in an upward direction when the seat is empty, and for allowing the seat to move in a downward direction in response to someone sitting on the seat. The downward motion of the seat moves the top member down, thereby actuating a nozzle on the canister, spraying a metered amount a substantially fixed predetermined amount, of spray into the toilet bowl.

Abstract: A battery monitoring system has an LED matrix displaying plural battery group conditions. The matrix has a column defining reference row of LED indicators, each active LED representing an adjacent voltage range. The reference row is responsive to an average battery voltage of plural battery groups. Aligned in columns with the reference row LED's are plural LED rows, each row representing an individual battery group. An active LED indicates an individual battery group voltage of the corresponding individual battery group. Analog multiplexing of scanned battery group voltages are sequentially applied to the matrix rows at a scan rate greater than the visual persistence of the LED's so that at any given moment, an LED appears active in each row as well as in the reference row. To focus on a single battery group, a scan switch interrupts application of scanned battery voltages. A digital display also selectively indicates either overall plural battery groups voltage or individual battery group voltage.