Patent ID: 11859762
Assignee: LINCOLN INDUSTRIES, INC.
Field: Mechanical elements (Mechanical engineering)
Classification: CPC F  B | IPC F

Claim 17:
18. A lubricant pump for driving lubricant from a container to at least one lubricant distributor, the container having upper and lower ends and an interior storage cavity for retaining a quantity of lubricant, the pump comprising:
a housing mountable to the upper end of the container and having a vertically-extending, central bore, an outlet passage extending between the central bore and an outlet port fluidly connectable with the lubricant distributor, a vent chamber having an inlet and an outlet, a vent inlet passage extending between the central bore and the vent chamber inlet, and a vent outlet passage extending between the vent chamber outlet and a vent outlet port fluidly connectable with the container cavity; and
a movable valve element disposed within the vent chamber and displaceable along an axis between a first position in which the valve element obstructs at least one of the chamber inlet and the chamber outlet and a second position in which the chamber inlet is fluidly connected with the chamber outlet to provide an internal flow path from the central bore to the vent outlet port;
wherein the vent chamber is configured to receive a plug to prevent flow between the vent chamber inlet and the vent chamber outlet.