Patent ID: 8261769
Filing Date: 2012-09-11
Classification: G05D,Y10T

Abstract:
1. A fluid level controller comprising: a cartridge housing; an invertible pilot cartridge supported by said cartridge housing, in which said cartridge comprising a cartridge body supporting a plurality of seals, wherein said seals communicate with said cartridge housing to pneumatically isolate said cartridge from said cartridge housing, wherein said cartridge is separate and distinct from and secured within said housing; a span control mechanism secured to a proximal end of said cartridge and extending beyond the confines of said housing; a float communicating with said cartridge and adjusted to a neutral position relative to said cartridge housing; and a control signal provided by said cartridge in response to a movement by said float, wherein said control signal is a direct control signal when said cartridge is secured for operation within said housing and said span control mechanism secured to said cartridge extends beyond the confines of said housing in a first direction, and further wherein said control signal is an indirect control signal when said cartridge is inverted and secured for operation within said housing such that said span control mechanism extends beyond the confines of said housing in a second and opposite direction from said first direction.