Patents by Inventor Cass E. Mulford

Cass E. Mulford 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: 4815250
    Abstract: The invention relates to exterior wall and roof constructions wherein a space is provided between an outer sheathing layer and the underlying structure for passage of air to assist in heating, cooling and ventilation functions. Perforated channel members are installed in the area at which air enters and/or leaves the vented space, permitting free flow of air while preventing entry of insects, rodents, or other foreign materials into the space. Means may be optionally provided for blocking off air flow through the vent space when desired to assist in heating and cooling functions. Plenums and ductwork may be provided for recirculation of air from the vented spaces to other portions of the structure. In one embodiment, a vented roof structure is provided which may advantageously be employed in conjunction with an interior, cathedral-type ceiling. An angle bracket useful in both marking roof rafter members for cutting and in assembly thereof is also disclosed.
    Type: Grant
    Filed: January 6, 1988
    Date of Patent: March 28, 1989
    Inventor: Cass E. Mulford
  • Patent number: 4658552
    Abstract: The invention relates to exterior wall and roof constructions wherein a space is provided between an outer sheathing layer and the underlying structure for passage of air to assist in heating, cooling and ventilating functions. Perforated channel members are installed in the area at which air enters and/or leaves the vented space, permitting free flow of air while preventing entry of insects, rodents, or other foreign materials into the space. Means may be optionally provided for blocking off air flow through the vent space when desired to assist in heating and cooling functions. Plenums and ductwork may be provided for recirculation of air from the vented spaces to other portions of the structure. In one embodiment, a vented roof structure is provided which may advantageously be employed in conjunction with an interior, cathedral-type ceiling. An angle bracket useful in both marking roof rafter members for cutting and in assembly thereof is also disclosed.
    Type: Grant
    Filed: December 17, 1984
    Date of Patent: April 21, 1987
    Inventor: Cass E. Mulford
  • Patent number: 4658557
    Abstract: A wall construction for both exterior and interior walls which is particularly adapted for fire protection, minimizing the possibility of burn-through from one side to the other of a construction utilizing wood portions. The basic structural member which forms the studs, top plates and sills or bottom plates, includes a pair of elongated, spaced wooden members joined by a web structure of fire-rated gypsum board. Preferably, in addition to the sheathing layers on each side of the studs, an interior panel is provided, separating the space between the sheathing layers into two separate spaces, one of which may be filled with fireproof insulation and the other utilized for plumbing, electrical lines and fixtures, etc. In another embodiment, particularly intended as an interior, party wall, a pair of panel members are provided, containing a layer of insulation therebetween for sound dampening purposes.
    Type: Grant
    Filed: December 17, 1984
    Date of Patent: April 21, 1987
    Inventor: Cass E. Mulford