John L Michaels

US Patent:

53715055, Dec 6, 1994

Filed:

Apr 22, 1993

Appl. No.:

8/052182

Inventors:

John F. Michaels - East Patchogue NY

Assignee:

Microwave Power Devices, Inc. - Hauppauge NY

International Classification:

H01Q 300

US Classification:

342360

Abstract:

The necessity for returning a repaired nose-mount type aircraft radar radome to a radar test range for recertification is avoided. Data representative of signal transmission characteristics of a repaired area of the radome wall is derived by use of transmission and reflection coefficient determination techniques. A small antenna radiates a test signal through the radome wall and the test signal is then reflected back to the same antenna now operating in a receiving mode. Reflected test signal data is gathered as the spacing of the reflector from the radome wall is successively changed and such data is used to derive signal transmission characteristics. Data representative of such transmission characteristics for a repaired area and a reference area can then be compared in order to detect the presence of out of specification conditions in the repaired area. In other applications, pre-recorded reference data can be used to accomplish certification testing of radomes as part of the manufacturing process. Related test methods are also described.

US Patent:

53845722, Jan 24, 1995

Filed:

Aug 25, 1993

Appl. No.:

8/111847

Inventors:

John F. Michaels - East Patchogue NY
William L. Rubin - Whitestone NY

Assignee:

Republic Electronics Co. - Hauppauge NY

International Classification:

G01S 740

US Classification:

342169

Abstract:

A portable test system is arranged to enable testing of an aircraft-mounted radar system. Simulated radar returns are transmitted via a test antenna positioned a short distance from an aircraft parked on an airport surface. The varying amplitude of received radar pulses is analyzed as the test antenna is illuminated by the main beam and side lobes of the radar antenna pattern as the radar beam is scanned. By controlling the amplitude of the simulated radar returns in inverse relation to the amplitude of received radar pulses, simulated radar returns inserted off beam center line are interpreted by the radar system as received on the beam center line. Test system transmissions, which may incorporate windshear effect test data, are thus enabled to create simulated effects usable for testing radar system response to a variety of airborne conditions, such as windshear. Test methods are also described.

US Patent:

50056174, Apr 9, 1991

Filed:

Apr 17, 1990

Appl. No.:

7/510046

Inventors:

John Michaels - North Tonawanda NY

International Classification:

B27C 510
B43L 1302

US Classification:

144134D

Abstract:

A guide device securable to a hand-held router facilitates the guiding of the router across a thin workpiece so that the rotatable cutting tool of the router severs the workpiece along a prescribed cutting path and so that the prescribed cutting path corresponds with an edge of an object underlying the workpiece. The guide device includes a platen body which moves between the workpiece and the underlying object as the router is moved across the workpiece, and the body includes a lengthy abutment surface positionable in abutting engagement with the edge of the underlying object. When moving the router across the workpiece while maintaining the abutment surface in abutting relationship with the edge of the underlying object, the cutting tool of the router moves in cutting engagement with the workpiece along the prescribed cutting path.

US Patent:

46220909, Nov 11, 1986

Filed:

Oct 25, 1985

Appl. No.:

6/791336

Inventors:

John Michaels - Tonawanda NY

International Classification:

B27F 104

US Classification:

156257

Abstract:

An apparatus and associated method for grooving a relatively rigid planar laminate sheet structure of the type having a relatively rigid substrate layer and a flexible sheet layer fixedly overlying the substrate layer to facilitate the folding of the sheet structure about a right corner defined by two planar surfaces of a polygonal panel during a laminating operation utilizes a circular rotatable grooving blade having teeth having cutting edges providing in cross-section, a V having an apex directed generally radially outwardly of the blade and further utilizes a member associated with the blade for defining first and second guide planes. The teeth cutting edges are adapted to form a V-sectioned groove in the laminate sheet structure as the blade is rotated within a plane oriented generally perpendicular to the plane of the laminate sheet and moved in operative grooving engagement across the laminate sheet. The provided V has a projected height which is about equal to the thickness of the substrate layer of the laminate sheet to be grooved, and has one leg which terminates at a point which rotates, as the blade is operatively rotated, within one blade plane oriented to one side of the blade body. The first guide plane is coincident with the defined one blade plane, and the second guide plane is oriented generally perpendicular to the first and spaced from the rotational axis of the blade a distance equal to the distance between the rotational axis and the apex of the provided V minus the projected height of the provided V so that by placing one corner-defining surface of a polygonal panel against the substrate side of a laminate sheet and moving the apparatus relative to the laminate sheet to be grooved with the first guide plane in sliding engagement with the other corner-defining surface of the panel, the second guide plane in sliding engagement with the laminate sheet, and the grooving blade in operative grooving engagement with the laminate sheet, the blade forms a V-sectioned groove in the laminate sheet adajcent the panel corner, which groove has a depth equal to about the projected height of the provided V.

Author:

John G. Michaels

ISBN #:

0070059063

Author:

John G. Michaels

ISBN #:

0070418233

Author:

John G. Michaels

ISBN #:

0070418209

Author:

John G. Michaels

ISBN #:

0849301491