Apparatus for adding fluid additives to fluids
First Claim
1. An apparatus for the addition of a fluid additive to fluid and which is used in association with a flow meter, and which includes a reservoir for additive and a means for including the additive with the fluid, characterised in that the reservoir comprises an upper and a lower section, and in that the apparatus includes a means for replacing the additive in the reservoir in defined quantities, and means for detecting when the reservoir is depleted to a set level of additive between the upper and lower sections and means for recording the occurrence of the depletion of the reservoir to the set level between the upper and lower sections.
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Accused Products
Abstract
A delivery vehicle is used to deliver oil with or without a marker and is provided with apparatus which includes a reservoir of marker and an injector pump for adding marker to the oil. A controller records the occurrence of an event associated with the depletion of the reservoir which has an upper section, a lower section and a marker level sensor located at a narrow constriction between the two sections. The apparatus includes a blender which causes fluid flow to occur at different rates and is operable so that the slugging effect of marker injection is reduced. The injector pump is arranged to provide a delay prior to each forward or reverse stroke. The memory devices of the controller are locked or sealed so as to deny access to reprogram the controller.
18 Citations
13 Claims
- 1. An apparatus for the addition of a fluid additive to fluid and which is used in association with a flow meter, and which includes a reservoir for additive and a means for including the additive with the fluid, characterised in that the reservoir comprises an upper and a lower section, and in that the apparatus includes a means for replacing the additive in the reservoir in defined quantities, and means for detecting when the reservoir is depleted to a set level of additive between the upper and lower sections and means for recording the occurrence of the depletion of the reservoir to the set level between the upper and lower sections.
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13. An apparatus for the addition of a fluid additive to a fluid, comprising:
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a reservoir for additive, wherein the reservoir comprises an upper section and a lower section;
means for adding the additive to the fluid by depleting the additive from the reservoir;
means for detecting when the reservoir is depleted to a set level of additive between the upper and lower sections;
means for replacing the additive in the reservoir in a defined quantity in response to detecting depletion of the reservoir to said set level; and
means for counting the quantities of replaced additive by counting said detected depletions of the upper section of the reservoir to said set level.
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Specification