FRANCIS JOSEPH MCCABE
Pilots in Gardenville, PA

4113230, Sep 12, 1978

Feb 22, 1977

5/770831

Francis J. McCabe - Doylestown PA

F24F 1314, F16K 122

251305

A fire, smoke and air control damper is disclosed wherein one or more hook-shaped hinge portions formed intermediate between the longitudinal edges of each damper blade engage complementally configured hook-shaped hinge elements formed on opposite sides of the damper frame. A novel notch configuration is made in an inwardly depending flange in the frame on opposite sides, the hinge elements being made from at least a portion of the material notched from the frame. In the closed position, various blade portions engage opposite sides of the inwardly depending flange in the frame to form a seal therebetween, thereby providing a positive pressure resistant seal. The seal is made more complete along the flange in the area of the hinge element because of the novel notch configuration. Several embodiments of actuating the blades to move them between open and closed positions are disclosed. In one such embodiment, a link passes through an arcuate opening in the wall of the frame to engage a linkage rod.

4338967, Jul 13, 1982

May 30, 1980

6/154713

Francis J. McCabe - Doylestown PA

The United States of America as represented by the United States
Department of Energy - Washington DC

F24F 1314, F16K 122

137601

A universal operator is disclosed for rotating blade air, smoke and fire dampers, said dampers comprising a frame and a plurality of interconnected blades within said frame, said interconnection being in the form of a link bar which adapts all of said blades to open and close as a unit. The operator comprises a pair of pivotally connected members to form a knee-action joint which in turn is pivotally connected both to the damper frame and to said link bar. The operator also comprises stall type actuation means for selectively acting through the operator to control the degree of blade opening and bias means to return said blades to their normal operating position whenever said actuation means is disengaged.

4146048, Mar 27, 1979

May 2, 1977

5/792525

Francis J. McCabe - Doylestown PA

Prefco Productions, Inc. - Buckingham PA

F16K 1738, E05D 710

137 75

A butterfly damper with a plurality of blades which can be locked in the open position, and which, when released, rotate about a hinge to the closed position. A pawl member, attached to one blade, extends away from the blade and through an opening in a second blade when the blades are in the open position. A mounting member attached to the second blade restrains the pawl member thereby holding the blades in the open position. A bimetallic link attached to the mounting member causes the pawl member to be released when the temperature of the air passing through the duct increases beyond a preselected level. A closure spring attached to the blades acts on the blades tending to force them apart against the action of the mounting member and the pawl member when the blades are restrained in the open position. The damper blades can be insulated to prevent the heat from a fire on one side of the damper from being conducted by the damper to the other side when the blades are in the closed position. A method of fabricating a butterfly damper is described which minimizes welding and riveting thereby simplifying fabrication.

4219185, Aug 26, 1980

May 16, 1978

5/906655

Francis J. McCabe - Doylestown PA

Prefco Products, Inc. - Buckingham PA

F24F 1314, F16K 122

251308

A fire, smoke and air control damper is disclosed wherein one or more hook-shaped hinge portions formed intermediate between the longitudinal edges of each damper blade engage complementally configured hook-shaped hinge elements formed on opposite sides of the damper frame. A novel notch configuration is made in an inwardly depending flange in the frame on opposite sides, the hinge elements being made from at least a portion of the material notched from the frame. In the closed position, various blade portions engage opposite sides of the inwardly depending flange in the frame to form a seal therebetween, thereby providing a positive pressure resistant seal. The seal is made more complete along the flange in the area of the hinge element because of the novel notch configuration. Several embodiments of actuating the blades to move them between open and closed positions are disclosed. In one such embodiment, a link passes through an arcuate opening in the wall of the frame to engage a linkage rod.

4919329, Apr 24, 1990

Apr 24, 1989

7/342496

Francis J. McCabe - Doylestown PA

G05D 2308

236 93R

A damper has a frame with a cross bar and a reciprocal blade. A bimetallic element which moves in response to temperature is coupled to the blade and is hingedly coupled to the cross bar so that movement of the bimetallic element in response to temperature causes the blade to move with respect to the frame. The coupling of the bimetallic operator and the frame is accomplished by a biasing hinge which is coupled to the frame and to the bimetallic element to couple the bimetallic element to the frame and control the temperature movement response of the element. The biasing force of the biasing means is adjustable for controlling the temperature movement response of the damper blade. The bimetallic element is a serpentine spring having a plurality of bends and the biasing means is a hinge. The closed position of the blade of the damper, as well as the biased temperature response of the damper, and adjustable by rotation of adjustment screws.

5146932, Sep 15, 1992

Nov 1, 1990

7/609170

Francis J. McCabe - Doylestown PA

A61F 537, A61F 500

128873

A bladder-less counterpressure garment primarily used in the treatment of a victim suffering from hypovolemic shock. The garment is made of a resilient material, like elastic, with a means for stretching the material to or near its stretch limit. This stretching supplies the requisite counterpressure to increase blood circulation to the vital organs.

4295486, Oct 20, 1981

Sep 21, 1979

6/077583

Francis J. McCabe - Doylestown PA

Prefco Products, Inc. - Buckingham PA

F16K 1738

137 80

A novel operator is disclosed for use in combination with a butterfly fire and volume control damper, which operator may be concealed behind a standard concentric diffuser. Only a screwdriver aperture need be provided in the diffuser to facilitate the volume adjustment of the butterfly damper. In response to excessive heat in the vicinity of the damper, the blades of the damper will move to their fully closed position. Once activation conditions have passed, the damper may be reset by replacing the releasing device which separated in response to said heat.

4472999, Sep 25, 1984

Jan 30, 1981

6/229830

Francis J. McCabe - Doylestown PA

F24F 700

98 1

A damper operator for use with a damper having a frame and a damper blade pivotally associated with the frame, which damper operator comprises a drive rod; a pair of lever arms which are pivotally associated with each and which extend between the drive rod and a pivoting mechanism associated with the blade of the damper; and a latching mechanism which extends between portions of each of the lever arms, and which permits selective engagement and disengagement between those portions of the lever arms, and accordingly, selective respective rotation of the lever arms, so that the blade of the damper can be urged toward a predetermined orientation.

4099292, Jul 11, 1978

Mar 18, 1977

5/779044

Francis J. McCabe - Doylestown PA

E05F 1520

16 485

A novel telescoping heat responsive releasing device is described wherein a mounting member on which a bimetallic means is mounted slidingly engages a pawl member which is movable between a first position in which the pawl member is capable of being restrained by the aforementioned bimetallic means, and an actuating position wherein associated apparatus connected to said releasing device may assume the desired heat responsive posture. Various alternate embodiments are illustrated wherein a plurality of bimetallic elements are utilized to engage the pawl member, wherein a bimetallic element is additionally actuated mechanically or electrically, and wherein various pawl and mounting member configurations are illustrated.

4185657, Jan 29, 1980

Mar 29, 1978

5/891330

Francis J. McCabe - Doylestown PA

Prefco Products, Inc. - Buckingham PA

F24F 1314

137601

A novel damper kit is described wherein blade stock having a hook-shaped hinge portion formed therein, and notched angle bracket stock having periodically spaced hook-shaped hinge elements formed therealong can easily be cut and assembled at the job site to custom fit and install a damper in a duct, opening, or plenum.