Douglas Evan Hersh

age ~66

from San Diego, CA

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Aeroponic Plant Growing System
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US Patent:

20210212276, Jul 15, 2021
Filed:

Aug 11, 2020
Appl. No.:

16/990736
Inventors:

- San Diego CA, US
Douglas Evan Hersh - San Diego CA, US
International Classification:

A01G 31/06
Abstract:

An aeroponic grow tower is provided. The tower includes a modular wall system located between a cover and a base. The wall system is comprised of a plurality of individual flat, four-sided wall panels. The identical wall panels are removably connected along their side edges via a click-lock, semi-spherical, elongated ball joint into one or more levels having a polygonal shape. Levels are aligned and stack atop the base and each other via half-lap joints at the top and bottom sides forming a flush interior surface. The wall panels have openings defining grow sites configured to support substrate and plants such that foliage extends to the outside and roots hang inside the tower. A pump delivers nutrient solution from the base up to a high-rotational speed spray nozzle which aerosolizes the nutrient solution which gently rains down upon the roots. The spray also impacts the interior surface further aerosolizing the solution. Channels on the wall panels direct nutrient solution running down the interior surface to the grow sites. The grow sites include secondary nutrient reservoirs to provide a further source of nutrient solution in extreme temperatures and reduce power usage. A ventilation system and seedling covers are also provided.

Fastener
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US Patent:

20200049190, Feb 13, 2020
Filed:

Aug 9, 2019
Appl. No.:

16/537322
Inventors:

- San Diego CA, US
Douglas E. Hersh - San Diego CA, US
International Classification:

F16B 39/26
Abstract:

A nut-and-bolt fastener is provided. The nut and bolt are configured with a plurality of interlocking teeth that provide unidirectional travel of the nut with respect to the bolt. In particular, the configuration of the teeth arrest separation of the nut from the bolt while permitting the nut to move toward the head of the bolt into a fastened engagement. The teeth are non-helical and arranged concentrically around the longitudinal axis in evenly-spaced steps or segments along the longitudinal axis and around the shaft of the bolt and bore of the nut. Integral winged washers are provided on the bolt head as well as on the nut. Variations with different rake angles of the teeth as well as an expandable nut are also provided.