Patents by Inventor David Gerard Pelka

David Gerard Pelka has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Apparatus and method for preventing anaerobic root conditions
    Patent number: 10609879
    Abstract: An apparatus is configured to be mechanically coupled to at least one growth substrate. The apparatus includes a frame with a plurality of connecting members and a plurality of insertion anchors. The insertion anchors are configured to be inserted at least partially into the at least one growth substrate and are mechanically coupled to the plurality of connecting members which form one or more openings therebetween.
    Type: Grant
    Filed: October 16, 2018
    Date of Patent: April 7, 2020
    Assignee: Plant Growth Technologies, Inc.
    Inventors: Eric Pelka, David Gerard Pelka
  • APPARATUS AND METHOD FOR PREVENTING ANAEROBIC ROOT CONDITIONS
    Publication number: 20190133060
    Abstract: An apparatus is configured to be mechanically coupled to at least one growth substrate. The apparatus includes a frame with a plurality of connecting members and a plurality of insertion anchors. The insertion anchors are configured to be inserted at least partially into the at least one growth substrate and are mechanically coupled to the plurality of connecting members which form one or more openings therebetween.
    Type: Application
    Filed: October 16, 2018
    Publication date: May 9, 2019
    Inventors: Eric Pelka, David Gerard Pelka
  • Direct-view LED backlight with gradient reflective layer
    Patent number: 10274783
    Abstract: A backlight unit includes an array of light sources arranged on at least one printed circuit board, a reflective member including a plurality of holes provided over the array of light sources such that light from the light sources passes through the holes, and a gradient reflective layer provided over the reflective member to modify a distribution of light received from the array of light sources and the reflective member.
    Type: Grant
    Filed: April 25, 2018
    Date of Patent: April 30, 2019
    Assignee: Pelka & Associates, Inc.
    Inventor: David Gerard Pelka
  • HORTICULTURAL LED ILLUMINATOR
    Publication number: 20190120460
    Abstract: A lamp includes a plurality of light sources arranged in a planar array, each light source having a light-emitting diode (LED) and an optical element. The optical element includes a substantially transparent first portion having a first refractive index, the first portion configured to receive light from the LED. The optical element further includes a substantially transparent second portion having a second refractive index greater than the first refractive index, the second portion having an emission surface with a two-lobed shape.
    Type: Application
    Filed: October 17, 2018
    Publication date: April 25, 2019
    Inventor: David Gerard Pelka
  • ULTRA THIN DIRECT-VIEW LED BACKLIGHT
    Publication number: 20180321557
    Abstract: A backlight unit includes an array of light sources configured to emit light, a reflective layer including a plurality of holes, and a gradient reflective layer. The plurality of holes are configured to allow the light emitted from the array of light sources to propagate through the reflective layer, and the gradient reflective layer is configured to modify a distribution of light emitted from the gradient reflective layer.
    Type: Application
    Filed: April 25, 2018
    Publication date: November 8, 2018
    Inventor: David Gerard Pelka