Donald B Perkins

US Patent:

7587866, Sep 15, 2009

Filed:

Mar 25, 2005

Appl. No.:

11/090742

Inventors:

Donald Burgess Perkins - Nashua NH, US

International Classification:

E04F 11/00
E04F 19/10
E06C 9/00

US Classification:

52183, 52181, 52186, 182 78, 182 79, 182 81

Abstract:

An integrated insulated housing system with handrails and a system of seals for a pull down stairway opening is provided. The integrated housing system reduces air convection, moisture loss and dirt infiltration. The insulation of the housing system reduces heat loss. Handrails as part of the system are deployed by the action of the pull down stairway. No manual intervention is required. As the stairway is pulled down for use, the integrated housing above moves away from the access opening. Simultaneously, the two integrated handrails move into a stable position on the upper floor and to either side of the stairway. As the stairway is returned up to its closed position, the connected insulated housing moves back into position sealing the access opening.

US Patent:

D2648962, Jun 15, 1982

Filed:

Sep 24, 1979

Appl. No.:

6/078100

Inventors:

Donald R. Perkins - Natick MA

International Classification:

D0302

US Classification:

D 3 74

US Patent:

43031587, Dec 1, 1981

Filed:

Sep 24, 1979

Appl. No.:

6/077903

Inventors:

Donald R. Perkins - Natick MA

International Classification:

B65D 8520
A45C 512

US Classification:

206373

Abstract:

A tool box for small hand tools and associated items which opens up from the front as well as the top and which is provided with supporting elements for holding certain tools contained therein in an upright position. The tool box includes a bottom wall, a back wall, a pair of opposed side walls, a top cover which is hingedly connected at its back edge to the back wall and which is provided with a built-in storage compartment and a front cover which is hingedly connected at its bottom edge to a front plate and which includes a strip magnet on its inside surface on which can be mounted metal tools. A shelf having a plurality of holes into which can be inserted tools and suspended therein in an upright position is mounted inside the tool box near the top and a removable tray having adjustable compartments is seated on a shelf inside the tool box near the bottom. A pull-out drawer having adjustable compartments is located underneath the tray. The tool box lends iself to an orderly arrangement of the tools and items being stored.