Patent ID: 7625115

Claim:
A method of dispensing small amounts of high viscosity lubricant components with tubeless positive displacement pipettes with improved accuracy to form a lubricant blend, the improvement comprising the following steps: providing a low void volume positive displacement pipette for each lubricant component contained within a lubricant additive reservoir, and one or more lubricant blend containers, the containers having less than about 100 ml total volume; ingesting into said low void volume positive displacement pipette from the lubricant additive reservoir an ingestion volume of a lubricant component; moving said low void volume positive displacement pipette from said lubricant additive reservoir to said one or more lubricant blend containers; ejecting into said one or more lubricant blend containers an ejection volume of said lubricant component from said low void volume positive displacement pipette at a rate below a preselected threshold shear rate; returning said low void volume positive displacement pipette from said one or more lubricant blend containers to said additive reservoir; and repeating said ingesting, said moving, said ejecting and said returning steps for each additional lubricant component.