Alessandro Bonfanti from Lake Mary, FL, age 53

Gasket Arrangement For Withstanding Internal Arc In A Switchgear Enclosure
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US Patent:

20170040778, Feb 9, 2017
Filed:

Aug 5, 2015
Appl. No.:

14/818450
Inventors:

- Zurich, CH
Alessandro Bonfanti - Lake Mary FL, US
International Classification:

H02B 1/28
H02B 1/38
Abstract:

A switchgear enclosure has a case with a front face that surrounds an opening in the case. A flange extends from the front face and has a first surface adjacent to the opening and a second, opposing surface. At least the second surface is disposed transversely with respect to the front face. A door has a door bracket. A gasket is coupled the door bracket and forms an endless loop sized larger than a size of the opening in the case. The gasket has a seal portion. When the door is closed, the seal portion compresses against the second surface of the flange to provide a seal around the opening, and in the event of an arc in the case causing pressure to be exerted on the door, the gasket moves with the door, with the seal portion sliding along the second surface, maintaining the seal around the opening.

Door Mounted Vent Flap Structure For Arc-Resistant Compartment
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US Patent:

20160035518, Feb 4, 2016
Filed:

Jul 31, 2014
Appl. No.:

14/447943
Inventors:

- Zurich, CH
Alessandro Bonfanti - Lake Mary FL, US
Jerry Earl - Apopka FL, US
International Classification:

H01H 33/53
F24F 7/00
Abstract:

A door for an arc-resistant compartment includes an opening there-through. Flap structure includes a flap member coupled to the door and movable between an opened position permitting air to pass through the opening, and a closed position covering the opening. Spring structure is engaged with the flap member to bias the flap member to the closed position. Handle structure is coupled to the flap member and extends through the door for moving the flap member to the opened position against the bias of the spring structure. Retaining structure provides a retaining force on the flap member to retain the flap member in the open position, against the bias of the spring structure. During an arcing event in the compartment, pressure within the compartment together with the bias of the spring structure overcomes the retaining force to automatically move the flap member to the closed position.