Abstract: A container for measuring a predetermined amount of liquid and dispensing that measured amount. The container includes a reservoir chamber, a measuring and dispensing chamber, and a conduit or tube for transferring liquid from the reservoir chamber to the measuring and dispensing chamber. The reservoir chamber has flexible walls which can be squeezed to drive liquid from the reservoir chamber into the measuring chamber. The conduit is configured to control the flow of liquid therethrough and thus to prevent either a portion of an already measured amount of liquid being returned to the reservoir chamber or additional liquid from the reservoir chamber being added to an already measured amount of liquid in the measuring and dispensing chamber.

Abstract: An apparatus and method for thermal compensation of an optical waveguide grating includes a temperature compensating package attached to the optical waveguide at two attachment points encompassing the grating. The distance between the two attachment points varies non-linearly with temperature over an operating temperature range for the apparatus.

Abstract: A container is provided for dispensing measured amounts of flowable solid material. The container includes a storage chamber, a measuring chamber having a predetermined volume and communicating with the storage chamber to be filled therefrom, and a dispensing chamber for receiving the measured volume of material from the measuring chamber while surplus material is returned to the storage chamber. A second measuring chamber may be provided to reduce the amount of the measured volume prior to dispensing.

Abstract: Upper and lower downwardly and upwardly opening caps are provided and removably telescopingly engageable over the upper and lower ends of an upstanding tubular body. The body includes a mid-height partition having a central drain opening therein and electrical resistance heating structure as disposed within the body for heating liquid therein above the partition. Valve structure is provided for opening and closing the drain opening and one side portion of the body below the partition has an access opening therein. An upwardly opening filter basket is provided and insertable inwardly of and withdrawable outwardly through the access opening and the body and basket include coacting structure removably supporting the basket within the body below the partition and in registry with the drain opening.