Patents by Inventor David W. Elder

David W. Elder 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).

  • Patent number: 10221583
    Abstract: An artificially-lighted waterfall fixture apparatus includes a fixture housing having a lower housing part and an upper housing part overlying and fitted with the lower housing part so as to define a water-distributing channel and a passageway extending forwardly from and in communication with the water-distributing channel to receive a flow of water therefrom and produce an artificial waterfall flowing from an outlet of the passageway. The apparatus also includes an elongated baffle disposed in the fixture housing along a top portion of the water-distributing channel to receive and convert the flow of water to a laminar flow through the passageway, and an artificial light-focusing module supported centrally in the fixture housing proximate the water-distributing channel and aligned with the passageway so as to generate a beam of light through the passageway that produces a predetermined configuration of light in the laminar flow of water.
    Type: Grant
    Filed: October 10, 2017
    Date of Patent: March 5, 2019
    Assignee: WATER WORKS TECHNOLOGIES GROUP, LLC
    Inventors: David W. Elder, Clynton Doyle, Kevin Doyle
  • Patent number: 9897307
    Abstract: A selectively-illuminable decorative water feature in the form of an assembly includes a base, casing, and a light source in communication with a semi-translucent or translucent fixture. The base may, for example, be a portion of a component/feature of a swimming pool, a spa or a fountain. The casing and light source may be mounted within the base and the fixture attached to a front surface of the base. The translucence or semi-translucence of the fixture creates an illumination effect due to limited transmission of light, emitted from the light source, through the feature. The water feature may take on a variety of forms, including, for example, decorative fixtures, receptacles, a bowl-shaped fixture, and a hand grip attached to a structural surface of a pool, spa or fountain.
    Type: Grant
    Filed: June 19, 2015
    Date of Patent: February 20, 2018
    Assignee: WATER WORKS TECHNOLOGIES GROUP, LLC
    Inventor: David W. Elder
  • Patent number: 9062839
    Abstract: A selectively-illuminable decorative water feature in the form of an assembly includes a base, casing, and a light source in communication with a semi-translucent or translucent fixture. The base may, for example, be a portion of a component/feature of a swimming pool, a spa or a fountain. The casing and light source may be mounted within the base and the fixture attached to a front surface of the base. The translucence or semi-translucence of the fixture creates an illumination effect due to limited transmission of light, emitted from the light source, through the feature. The water feature may take on a variety of forms, including, for example, decorative fixtures, receptacles, a bowl-shaped fixture, and a hand grip attached to a structural surface of a pool, spa or fountain.
    Type: Grant
    Filed: October 24, 2014
    Date of Patent: June 23, 2015
    Assignee: WATER WORKS TECHNOLOGIES GROUP, LLC
    Inventor: David W. Elder
  • Patent number: 7679314
    Abstract: A multiple battery system includes a battery housing, first and second batteries disposed in the battery housing, a one-way charging circuit, and at least one switching device. The battery housing includes at least one positive terminal and at least one negative terminal, which are electrically coupleable to an electrical system. Each battery includes respective positive and negative outputs. The negative output of each battery is electrically connected to the negative terminal(s) of the battery housing. The one-way charging circuit is electrically connected between the positive outputs of the two batteries and is configured to facilitate charging of, but prevent current flow from, the second battery when the first battery is supplying electrical energy to the electrical system. The switching device(s) is operable in at least two states to selectively electrically connect the positive terminal(s) of the battery housing to a selective one of the positive outputs of the two batteries.
    Type: Grant
    Filed: January 9, 2008
    Date of Patent: March 16, 2010
    Assignee: Reserve Power Cell, LLC
    Inventors: David W. Elder, Frank Bruno
  • Patent number: 7675261
    Abstract: An auxiliary battery attachment apparatus, which is attachable to a first housing containing a first battery, includes a second housing, a second battery disposed within the second housing, positive and negative couplings, a one-way charging circuit, and at least one switching device. The coupling(s) are respectively coupleable to positive and negative terminal(s) of the first housing. The second housing includes positive and negative terminals, which are electrically coupleable to an electrical system. The charging circuit is electrically connected between the positive coupling(s) and a positive output of the second battery, and facilitates charging of, but prevents current flow from, the second battery when the first battery is supplying electrical energy to the electrical system. The switching device(s) is operable in at least two states to electrically connect the positive terminal(s) of the second housing to a selective one of the positive coupling(s) and the positive output of the second battery.
    Type: Grant
    Filed: January 9, 2008
    Date of Patent: March 9, 2010
    Assignee: Reserve Power Cell, LLC
    Inventors: David W. Elder, Frank Bruno
  • Patent number: 7427865
    Abstract: A method for detecting a discharge condition fault in an electrical system of a vehicle or a piece of machinery includes supplying electrical energy to the electrical system from an auxiliary battery or batteries of a multiple battery system when a main battery of the multiple battery system does not have sufficient power to start the vehicle or piece of machinery. The supply of electrical energy from the auxiliary battery or batteries is sufficient to at least enable the vehicle or piece of machinery to start. After the vehicle or piece of machinery has been started using the auxiliary battery or batteries, electrical energy is supplied to the electrical system from the main battery. A general operating fault is determined to exist in the electrical system in the event that the vehicle or piece of machinery stops running after being supplied electrical energy from the main battery.
    Type: Grant
    Filed: January 9, 2008
    Date of Patent: September 23, 2008
    Assignee: Reserve Power Cell, LLC
    Inventors: David W. Elder, Frank Bruno