David F Swanson

Address:

22463 N 54 St, Phoenix, AZ 85054

VIN:

1J8HR58T49C527306

Make:

JEEP

Model:

GRAND CHEROKEE

Year:

2009

US Patent:

40699714, Jan 24, 1978

Filed:

Nov 10, 1975

Appl. No.:

5/630292

Inventors:

David A. Swanson - Tempe AZ

International Classification:

F24J 302

US Classification:

237 1A

Abstract:

A building structure is provided with a conventional air conditioning unit and a solar energized air heater unit. Heated air is drawn from the solar unit and discharged into the structure in response to a thermostat. Means are provided for supplying heated air from the air conditioning unit when the supply from the solar unit is inadequate to maintain a predetermined minimum temperature. Radioscope means disconnect the solar unit from the system when available solar energy falls below a predetermined value. The structure may include a wall having air storage capacity therein for receiving and holding heated air from the solar unit, which air is subsequently delivered to the interior of the structure.

US Patent:

49020544, Feb 20, 1990

Filed:

Mar 20, 1989

Appl. No.:

7/325369

Inventors:

David A. Swanson - Phoenix AZ

International Classification:

E05B 1500

US Classification:

292254

Abstract:

A safety device for screen and storm secondary doors in which a movable rod is horizontally mounted on the door jamb proximate to the latch receiving mechanism. The closure of the inner or primary door urges the rod into position so as to disable the latching mechanism of the screen door. The opening of the primary door enables the rod to be withdrawn thereby permitting the secondary door to be opened.