Package for an electrochemical elapsed time meter

Claim 2

A package for an electrochemical elapsed time meter comprising two elongated parts which are laterally separable from each other and which can be reassembled in reverse position, one of said parts carrying a coulometer tube and a magnifier therefor mounted in mutual alignment and in inseparable and fixed relation to each other, the second of said two parts carrying a scale member mounted in slidable relation thereon for cooperation with said coulometer tube, conductive means mounted on said second part and adapted to be connected in circuit with a source of energizing current for said coulometer tube, and means for connecting said conductive means to said coulometer tube.

Claim 3

A package for an electrochemical elapsed time meter according to claim 1 in which a transparent elongated member is arranged on said part carrying the coulometer tube, the inner surface of said transparent member being flat, said coulometer tube being mounted in fixed engagement with said flat surface, and the magnifier for the coulometer tube being formed on the outer surface of said transparent member integrally therewith and in alignment with the coulometer tube.

Claim 4

A package for an electrochemical elapsed time meter according to claim 1 in which said means for connecting said conductive means to the coulometer tube comprises, a pair of cooperating electrical contacts is arranged at each end of said elongated parts, one contact of each pair being mounted on said part carrying the coulometer tube and connected to one end thereof and the second contact of each pair being mounted on said second part.

Claim 5

A package for an electrochemical elapsed time meter according to claim 1 in which said part carrying the coulometer tube is arranged with scale gradations placed alongside said tube for cooperation therewith, and said second part is provided with a pair of lengthwise extending spaced members forming a channel for receiving the scale member in slidable relation therewith, and at least one of said channel-forming members is arranged with scale gradations for cooperation with said sliding scale.

Claim 6

A package for an electrochemical elapsed time meter according to claim 3 in which the electrical contact of each pair which is mounted on said second part is a resilient member, and each contact member mounted on the part carrying the coulometer tube is a rigid post which projects into sliding contact with the side of one of said resilient contacts when the two parts are assembled.

Claim 7

A package for an electrochemical elapsed time meter comprising an elongated base having an electric contact at each end, an electric conductor permanently connected to each of said contacts for interconnecting the meter and its associated apparatus, a scale carrier, a scale member mounted for lengthwise adjustment on said carrier, an elongated cover member removably Positioned on said base, a coulometer tube having two separate columns of liquid metal therein electrically connected at their inner ends by an electrolyte solution, a contact member fixed at each end of the cover for engaging one of the contacts on the base when the cover and base are assembled, an electrical connection between each of said contacts and the adjacent column of liquid metal, said cover carrying the coulometer tube being reversible in position with respect to the base so that when said electrolyte solution has moved to a point near one end of the coulometer tube, the reversal of said cover with respect to the base will permit continued operation of the meter to cause the electrolyte solution to travel towards the opposite end of the coulometer tube, a transparent member fixed to the cover and arranged to close an opening in the top thereof, said transparent member including a magnifier portion extending from end to end centrally thereof, and said coulometer tube being mounted beneath said magnifier in aligned and fixed relation thereto so that reversing the position of said cover will not change the alignment of said tube and magnifier.

Claim 8

A package for an electrochemical elapsed time meter comprising an elongated base having an electric contact at each end, an electric conductor permanently connected to each of said contacts for interconnecting the meter and its associated apparatus, a scale carrier, a scale member mounted for lengthwise adjustment on said carrier, an elongated cover member removably Positioned on said base, a coulometer tube having two separate columns of liquid metal therein electrically connected at their inner ends by an electrolyte solution, a contact member fixed at each end of the cover for engaging one of the contacts on the base when the cover and base are assembled, an electrical connection between each of said contacts and the adjacent column of liquid metal, said cover carrying the coulometer tube being reversible in position with respect to the base so that when said electrolyte solution has moved to a point near one end of the coulometer tube, the reversal of said cover with respect to the base will permit continued operation of the meter to cause the electrolyte solution to travel towards the opposite end of the coulometer tube, a transparent member fixed to the cover and arranged to close an opening in the top thereof, said transparent member including a magnifier portion extending from end to end centrally thereof, and said coulometer tube being mounted beneath said magnifier in aligned and fixed relation thereto so that reversing the position of said cover will not change the alignment of said tube and magnifier.