Separate Compartment Patents (Class 122/123)
  • Patent number: 9291401
    Abstract: A condensing heat exchange economizer wherein upwardly flowing hot flue gas is apportioned by a damper among a plurality of reverse flow passages and redirected to flow in a downward direction through the reverse flow passages over respective bundles of heat exchange tubes carrying a counter-flowing heat exchange medium to form condensate and cool the flue gas. The economizer may comprise a housing having a main flow duct defining a main flow passage in which the damper is located, a pair of conduits opposing one another across the main flow duct and defining respective reverse flow passages, and a pair of return channels opposing one another across the main flow duct and defining respective return flow passages. The cooled flue gas may be merged with the main flow passage at a location above the damper.
    Type: Grant
    Filed: February 24, 2014
    Date of Patent: March 22, 2016
    Assignee: COMBUSTION & ENERGY SYSTEMS LTD.
    Inventor: Daniel H. Veitch
  • Patent number: 8453610
    Abstract: A hot water tank comprising a sleeve, a removable top lid, at least one changeable water holding compartment adapted to be stacked vertically within the sleeve, stacked compartments being connected by a connecting pipe and at least one heating means provided with one of the compartments. The changeable compartments are configured to be removable from the sleeve upon removal of the top lid in case of failure and the space between the sleeve and the changeable compartments is adapted to hold the contents of the compartments during a leak.
    Type: Grant
    Filed: June 29, 2007
    Date of Patent: June 4, 2013
    Inventor: André Houle
  • Patent number: 7967736
    Abstract: Apparatus suitable for pilates and other exercise comprises rails, supported on a box-like frame and an exercise carriage, mounted on the rails, wherein the carriage comprises a first carriage section and a second carriage section which sections can be (i) connected together to form a single exercise carriage which slides forwards and backwards on the rails, or (ii) disconnected to form two exercise carriages which independently slide forwards and backwards on the rails. The apparatus also has a seat with a spring-biased foot pedal and a spring-biased trapeze bar.
    Type: Grant
    Filed: August 17, 2009
    Date of Patent: June 28, 2011
    Assignee: Garuda Enterprises Limited
    Inventors: James Bernard D'Silva, Glynn Ray Barber
  • Patent number: 6934982
    Abstract: A hammock is described that has a concave across the mid portion of its hammock bed, a rigid curved bar extending between opposite sides of the hammock bed, beneath its concave, and a flexible strap extending taut between opposite ends of the rigid curved bar beneath the concave.
    Type: Grant
    Filed: May 12, 2004
    Date of Patent: August 30, 2005
    Assignee: Hatteras Hammocks Inc.
    Inventor: Jesse A. Branch, III
  • Patent number: 4389980
    Abstract: A boiler has a chamber to contain a charge of wood that rests on the bottom of the chamber with the major portion of the charge within a water jacketed upper portion of the chamber but free to settle as combustion progresses. Combustion is confined to the bottom portion of the chamber due to the cooling effect of the water jacket and to a turbulent cross draft in the combustion zone. A special venturi section in the flue coupled with a pressure blower both induces the flow of hot gases from the combustion zone through a second chamber and a heat exchanger and also provides a stream of air from the venturi section to create the cross draft. An oil burner may be used in conjunction with the second chamber as an alternate heat source. The boiler also has a special base construction and assembly features.
    Type: Grant
    Filed: October 21, 1980
    Date of Patent: June 28, 1983
    Assignee: Dumont Industries
    Inventors: Richard P. Marcotte, John W. Dumont, Jr.
  • Patent number: 4292933
    Abstract: A furnace with a combustion compartment and a heat exchanger compartment connected by a channel having a secondary air inlet for efficiently burning wood and absorbing the heat of combustion.
    Type: Grant
    Filed: November 8, 1979
    Date of Patent: October 6, 1981
    Assignee: Hutterian Society of Brothers
    Inventors: Daniel Meier, Carl Maendel