Lincoln Industrial Corporation

Alemite Corporation

Don K Shinn

Jerry D Shew

Brad Allen Edler

Steve Gaynes

Christopher W Joseph

A liquid flow device includes a container and a lid. When the lid is mounted on the container, the container supports a gas supply passage, a pressurization passage, an evacuation passage, and a liquid passage. A control valve is located between the gas supply passage and both the pressurization passage and the evacuation passage. In one configuration, the control valve provides communication between the gas supply passage and pressurization passage to pressurize the container and dispense liquid from the container through the liquid passage. In another configuration, the control valve provides communication between the gas supply passage and evacuation passage to create a vacuum pressure inside the container for evacuating liquid into the container through the liquid passage.

Fluid dispenser and evacuator

A dual mode pistol grip grease gun that operates in either the volume mode or the pressure mode. The grease gun includes a cylinder head having a handle attached thereto. Attached to the cylinder head via a shiftable link is a lever, which has a slot at one end. The shiftable link is disposed in the slot of the lever, and its position therein defines whether the grease gun is in the volume or the pressure mode. The shape of the slot is such that, when the grease gun is in volume mode and when the lever is fully pressed toward the handle, an angle defined by a first axis (defined as a line connecting a pivot point of a connection of the link to the cylinder head and a pivot point of a connection of the link to an end of the slot defining volume mode) and a second axis (defined as a line connecting the pivot point of the connection of the link to the end of the slot defining volume mode and a point along a bottom curve of the slot where the concavity of the curve changes) is approximately ten degrees. The shape of the slot, roller and tabs on the link allow for ease of shifting.

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Jonesborough, TN, United States of America

Don K Shinn