David Michael Parrish

Title: David Michael Parrish: Innovator in Water Conservation Technology

Introduction

David Michael Parrish is an accomplished inventor based in Westminster, CA (US). He is known for his innovative contributions to water conservation technology, particularly in the design of shut-off valves for toilet tanks. His work focuses on creating solutions that not only enhance functionality but also promote efficient water usage.

Latest Patents

David holds a patent for a Dual-ceramic shut-off valve, external to tank. This innovative shut-off valve connects between a water supply valve and a tank inlet port of a toilet tank. The design features a housing with an inlet port, an outlet port, a valve mechanism, a trip mechanism, and a trip circuit that is electrically connected to the trip mechanism. The valve mechanism includes a valve housing that rotationally confines a first ceramic disk and a second ceramic disk. Each disk has at least one aperture that, when aligned, allows fluid communication between the inlet and outlet ports. The trip mechanism includes a rotational spring that urges the rotation of an axial shaft fixed coaxially with the second disk. A trip latch prevents the rotation of the axial shaft and second disk unless withdrawn by a solenoid connected to the trip circuit. This circuit is linked to a toilet tank overflow sensor or a toilet bowl overflow sensor. Upon detecting a fault condition, the trip circuit activates the trip mechanism to prevent water from flowing into the toilet tank, thereby conserving water and preventing potential water damage.

Career Highlights

Throughout his career, David has demonstrated a commitment to innovation and sustainability. His work on the dual-ceramic shut-off valve exemplifies his ability to address practical problems with effective engineering solutions. His patent reflects a deep understanding of both mechanical design and the importance of water conservation in modern plumbing systems.

Collaborations

David has collaborated with notable colleagues, including Richard Quintana and Kermit L Achterman. These partnerships have contributed to the development and refinement of his innovative designs.

Conclusion

David Michael Parrish is a significant figure in the field of water conservation technology. His patented dual-ceramic shut-off valve represents a meaningful advancement in plumbing solutions, showcasing his dedication to innovation and sustainability.