Abstract: A portable device, which encompasses both a debt instrument such as a credit card and a savings instrument, which funds a TDS plan, is provided. The portable device allows a method, which includes providing a Statement having at least one section, which allows CCHs to select one, or a combination of a group of tax deferred investment accounts to receive the periodic monetary contribution, each representing a different level of risk. The method further includes providing a section within said Statement that allows for the CCH to specify TDS plans owned or controlled by third parties that will receive all or part of the periodic contribution made by the CCH, or whether the value of any one plan which the CCH or a third party controls will be transferred or liquidated. The method further includes providing the CCHs the option to allocate all or a portion of the cash-back rewards earned during a certain billing statement to the TDS account.

Abstract: A non-catalytic metal is used as an inner electrode of a heated exhaust gas oxygen sensor to eliminate the negative shift produced in the sensor emf when rich exhaust leaks into the reference compartment.

Abstract: A vortex shedding device for use in measuring air flow rate into an internal combustion engine includes a conduit having a passage within it that includes a venturi section preferably of rectangular cross-section throughout. The conduit has four walls defining the venturi section and passage, and at least one of the walls has a recess formed in it. An elongated element for generating vortices in air flowing in the passage extends transverse to the direction of air flow through the throat portion of the venturi section. Circuit means are provided for determining the frequency at which vortices are generated, and such circuit means are located in the recess formed in the one wall of the conduit. A cover encloses the recess and circuit means within. The cover includes means for establishing a thermal barrier between the circuit means and the medium in which the vortex shedding device is immersed, typically this medium being the air within the engine compartment of a motor vehicle.