Patents by Inventor William C. Griffiths

William C. Griffiths 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).

  • Method and system for control of desiccant dehumidifier
    Patent number: 8328904
    Abstract: An active wheel desiccant dehumidifier is controlled for improved energy savings by modulating operation characteristics including process air flow, reactivation air flow, temperatures, and wheel rotation in response to changing conditions.
    Type: Grant
    Filed: May 3, 2010
    Date of Patent: December 11, 2012
    Assignees: Bry-Air, Inc., Bry-Air (Asia) Pvt. Ltd.
    Inventors: William C. Griffiths, Deepak Pahwa, Rajan Sachdev
  • METHOD AND SYSTEM FOR CONTROL OF DESICCANT DEHUMIDIFIER
    Publication number: 20100275775
    Abstract: An active wheel desiccant dehumidifier is controlled for improved energy savings by modulating operation characteristics including process air flow, reactivation air flow, temperatures, and wheel rotation in response to changing conditions.
    Type: Application
    Filed: May 3, 2010
    Publication date: November 4, 2010
    Applicants: BRY-AIR, INC, BRY-AIR (ASIA) PVT. LTD.
    Inventors: William C. Griffiths, Deepak Pahwa, Rajan Sachdev
  • Needle lubricator system
    Patent number: 4369723
    Abstract: The pointed tip of a sewing machine needle is immersed in a liquid lubricant as it reaches the lower end of its downward stroke through the material being sewn, so as to coat the tip of the needle with a lubricant and reduce the friction and therefore the heat generated by the friction between the needle and the material being sewn.
    Type: Grant
    Filed: February 25, 1981
    Date of Patent: January 25, 1983
    Assignee: Opelika Manufacturing Corporation
    Inventors: William C. Griffith, Jr., Charles E. Brocklehurst
  • System of moisture and temperature conditioning air using a solar pond
    Patent number: 4355683
    Abstract: An air conditioning system and/or a heating system is described in combination with a solar pond, especially a pond which is of the gradient type, wherein it is important to maintain a concentration of salt which increases with the depth of the pond. The pond is regenerated, that is, the salt concentration gradient is maintained, by components of the air conditioning system, or by special concentrator towers wherein moisture is removed from brine that is circulated to the towers from the pond.
    Type: Grant
    Filed: May 11, 1981
    Date of Patent: October 26, 1982
    Assignee: Midland-Ross Corporation
    Inventor: William C. Griffiths
  • Chemical dehumidification system which utilizes a refrigeration unit for supplying energy to the system
    Patent number: 4259849
    Abstract: A sorbent-type air conditioning system which employs conventional refrigeration unit, including a compressor, evaporator, condenser and refrigerant. The cooling and heating effect or energy generated by the evaporator and condenser is the primary source of energy to temperature and moisture condition air and to regenerate or concentrate sorbent which becomes diluted during the moisture conditioning of the air.
    Type: Grant
    Filed: February 15, 1979
    Date of Patent: April 7, 1981
    Assignee: Midland-Ross Corporation
    Inventor: William C. Griffiths
  • Solar energy assisted air-conditioning apparatus and method
    Patent number: 4164125
    Abstract: An apparatus and a method for air-conditioning by which solar heat is collected and utilized in winter heating and in summer cooling and humidity adjustment. A hygroscopic liquid circulates through a solar heat collector and a reservoir thereof to accumulate sufficient heat to furnish energy for (1) dehumidification, adiabatic cooling of air, and concentrating of the hygroscopic liquid in summertime operation, or alternatively, heating of air in winter time.
    Type: Grant
    Filed: October 17, 1977
    Date of Patent: August 14, 1979
    Assignee: Midland-Ross Corporation
    Inventor: William C. Griffiths