Wagner Spray Tech Corporation

Jonathan L Schaumann

Daniel R Zientara

Heiko Tullney

Joseph W Kieffer

Frank Gregory Mirazita

Lam Huu Nguyen

A liquid delivery system is presented. The liquid delivery system comprises a source of fluid coupled to an outlet. The liquid delivery system also includes a hydraulic cylinder coupled to the source of fluid. The hydraulic cylinder has a piston movable between a first limit position and a second limit position during an operational cycle. The hydraulic cylinder is configured to pressurize fluid received from the source of fluid, and deliver the pressurized fluid to the outlet. The liquid delivery system also comprises a rod connected to the piston and extending out of the cylinder. The liquid delivery system also comprises a sensor configured to sense a position of the rod to provide a signal indication of the piston with respect to the first position or the second position. An indication of the sensed position is provided to a controller, and the controller is configured to send a control signal to initiate a normal operation loop based on the sensed position.

Piston limit sensing and software control for fluid application

In one embodiment, a fluid delivery system includes a motor assembly and a fluid pump assembly. The fluid pump assembly is spaced apart from the motor assembly, and at least one of the motor assembly or the fluid pump assembly is movable to change a distance between the motor assembly and the fluid pump assembly. The fluid delivery system includes a flexible linkage that couples the motor assembly to the fluid pump assembly, and is configured to transfer motion from the motor assembly to the fluid pump assembly. Further, the fluid delivery system comprises a linkage tightening mechanism configured to generate a tightening force on the linkage by biasing at least one of the motor assembly or the fluid pump assembly in a direction that increases the distance between the motor assembly and the fluid pump assembly.

Belt tightening mechanism for a fluid delivery system

The line striper comprises a material deployment system configured to receive a material from a material source and deliver the received material to a deployment mechanism, wherein the deployment mechanism is configured to apply the received material to a surface. The line striper also comprises a mechanical debris removal system configured to, when actuated, move along an application path ahead of the deployment mechanism such that debris is dislodged from the surface, wherein the mechanical debris removal system comprises a contact mechanism configured to facilitate dislodging of the debris from the surface.

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Champlin, MN, United States of America

Jonathan L Schaumann