Patents by Inventor David Hallam

David Hallam 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: 9918891
    Abstract: The invention provides a container for a funerary box. Embodiments include a tray, a jacket, retaining straps, and detachable lift handles. The tray is configured to retain fluids and also cooperate with the jacket and retaining straps to fully protect and conceal the funerary box. Preferred materials selections for the tray and jacket result in a relatively lightweight container. In embodiments of the invention, the container is configured such that the lift handles can be disposed in alternative locations on the container to facilitate handling.
    Type: Grant
    Filed: July 27, 2015
    Date of Patent: March 20, 2018
    Assignee: VKM International, Inc.
    Inventor: David Hallam
  • Publication number: 20070086932
    Abstract: The present invention provides an air filtration cartridge 1 suitable for use in the treatment of air in a forced airflow air supply system. The cartridge 1 comprises an inner casing 2 having an upstream stage 3 defining a chamber 4 having an inlet 5 for receiving a forced airflow 6. The chamber 4 has an outlet 7 which leads into a downstream stage 8 comprising a filter holder and mounting a high airflow electrostatic filter. Inside the chamber 4 is a low power coronal discharge ozone generator device 10.
    Type: Application
    Filed: July 19, 2004
    Publication date: April 19, 2007
    Inventor: David Hallam
  • Publication number: 20060182672
    Abstract: The present invention provides an apparatus 1 for the treatment of air comprising a low power corona discharge ozone generator 5,6 inside a chamber 9 having an inlet 2 and an outlet 7, and at least one air flow impeller 3 for inducing a flow of air through the chamber 9. The ozone generator 5,6 is formed and arranged for generating a restricted concentration of ozone, within an inactivating zone 10 contained within the chamber 9, through which the air flow is passed. The restricted concentration is sufficient to inactivate airborne pollutant material entrained in the air flow, yet decays sufficiently outside the inactivating zone so that the concentration of ozone in the cleaned air expelled from the apparatus 1 is at a physiologically acceptable level without the use of an ozone decomposition catalyzer.
    Type: Application
    Filed: July 19, 2004
    Publication date: August 17, 2006
    Inventor: David Hallam