Albert M Passadore

US Patent:

20110028080, Feb 3, 2011

Filed:

Jul 29, 2009

Appl. No.:

12/462172

Inventors:

Lawrence Hopkins - Happy Valley OR, US
Emily Jones - Tualatin OR, US
Albert Passadore - Beaverton OR, US
David Benson - West Linn OR, US

International Classification:

F24F 13/14

US Classification:

454259

Abstract:

A back draft damper includes a rectangular shell having a central opening which air can pass through. A plurality of vanes rotatably mounted in the shell are rotatable between open positions where air can pass through the shell and closed positions where air cannot pass through the shell. The axes the vanes rotate about are slightly offset from vertical.

US Patent:

20110028081, Feb 3, 2011

Filed:

May 6, 2010

Appl. No.:

12/775000

Inventors:

LARRY HOPKINS - HAPPY VALLEY OR, US
EMILY JONES - TUALATIN OR, US
ALBERT PASSADORE - BEAVERTON OR, US
DAVID BENSON - WEST LINN OR, US

Assignee:

HUNTAIR, INC. - TUALATIN OR

International Classification:

F24F 13/10
B23P 19/04

US Classification:

454259, 29700

Abstract:

A damper is provided. The damper includes a frame having a central opening through which air passes. A plurality of vanes are rotatably mounted within the frame. At least one of the vanes is oriented about a rotational axis that is offset at a non-orthogonal angle with respect to one of a horizontal and vertical axis.

US Patent:

20130072103, Mar 21, 2013

Filed:

Nov 8, 2012

Appl. No.:

13/672300

Inventors:

Emily Jones - Tualatin OR, US
Albert Passadore - Beaverton OR, US
David Benson - West Linn OR, US

Assignee:

HUNTAIR, INC. - Tualatin OR

International Classification:

F24F 13/14
B23P 11/00

US Classification:

454259, 29428

Abstract:

A damper is provided. The damper includes a frame having a central opening through which air passes. A plurality of vanes are rotatably mounted within the frame. At least one of the vanes is oriented about a rotational axis that is offset at a non-orthogonal angle with respect to one of a horizontal and vertical axis.

US Patent:

52076148, May 4, 1993

Filed:

Nov 7, 1991

Appl. No.:

7/789091

Inventors:

Albert M. Passadore - Aloha OR

Assignee:

Brod & McClung - Pace Company - Portland OR

International Classification:

F24F 1312

US Classification:

454298

Abstract:

A clean room is supplied with air at a controllable velocity from a blower with a variable damper mechanism. The ceiling of the clean room is comprised of a plurality of panels of particulate filter material Associated with at least some of the panels are air dampers comprised of first, second, and third adjacent perforated plates. The first plate is fixed and the second plate is mounted for translational movement relative to the first. The third plate is interposed between the first and second plates as a gasket to reduce air flow between the plates. By moving the second plate relative to the first, the perforations therein are selectably opened or occluded, permitting the air passing through each panel to be regulated. Air flow through the room as a whole is controlled by the variable air flow feature of the blower.

US Patent:

48591408, Aug 22, 1989

Filed:

Jun 13, 1986

Appl. No.:

6/874801

Inventors:

Albert M. Passadore - Boring OR

Assignee:

Brod & McClung - Pace Co. - Portland OR

International Classification:

F04D 2956

US Classification:

415 48

Abstract:

A centrifugal fan in which the cone and wheel have a telescoping relationship to vary the rated capacity of the fan. The mechanism effects the relative movement manually, or by a servo arrangement responsive to system pressure. The telescoping relationship includes an anti-recirculation sleeve on the cone. The wheel and cone can be moved to effect engagement of the cone and the wheel back plate to cut off the fan, when in a parallel arrangement, and to arrest wheel movement, after the drive to the wheel has been stopped. In another aspect, the cone and wheel are bodily stationary and a separate movable flow control sleeve is positioned to control flow.