Mark D Bryfogle

US Patent:

8390137, Mar 5, 2013

Filed:

Sep 30, 2010

Appl. No.:

12/894996

Inventors:

Mark Bryfogle - Silver Spring MD, US

International Classification:

H02K 35/00
F03G 7/00

US Classification:

290 1R, 310 36

Abstract:

The fluid-driven electrical generator utilizes internal driven fluid currents to generate a regular, mechanical oscillation that is used to generate electricity through electromagnetic induction. The fluid-driven electrical generator includes a base having opposed upper and lower surfaces. A linearly oscillating disc having opposed upper and lower surfaces and having a central passage formed therethrough is resiliently supported above the base to form a lower fluid flow path therebetween. An upper housing is mounted above the upper surface of the linearly oscillating disc. A lower surface of an upper wall thereof is spaced apart from the upper surface of the linearly oscillating disc to form an upper fluid flow path therebetween. At least one permanent magnet is attached to an outer edge of the linearly oscillating disc for generating alternating electrical current in at least one induction coil mounted adjacent the at least one permanent magnet.

US Patent:

54511348, Sep 19, 1995

Filed:

Aug 17, 1993

Appl. No.:

8/107043

Inventors:

Mark D. Bryfogle - Arlington VA

International Classification:

B25T 1700

US Classification:

414680

Abstract:

A powered material handling apparatus or lift provides for the movement and positioning of large, heavy and/or bulky objects using six degrees of freedom of motion. The lift may be used for the handling of virtually any such materials, but is especially suited for the handling of such objects as jet aircraft engines and aircraft external stores. The lift may be remotely operated by a hand controller which is mechanically arranged in the same manner as that of the lift, through a power supply and servo device. Feedback may be provided to the hand controller by the power supply and servo device, thus enabling the operator of the control to sense the forces occurring at the lift as it is actuated. Additionally, provision is made for the recording of a history of the forces, torques and linear actuation of the struts of the apparatus in the event of some subsequent question regarding a particular operation. Further improvements in such devices include various methods of attachment of the lifting struts to the platforms of the lifting apparatus, as well as several methods of strut actuation and sensing of the linear position of the struts.