ROBERT DOUGLAS STEWART
Pilots at Regents Pointe, Farmington, MI

License number
Michigan A4342029
Issued Date
Aug 2015
Expiration Date
Aug 2017
Category
Airmen
Type
Authorized Aircraft Instructor
Address
Address
29314 Regents Pointe, Farmington, MI 48331

Professional information

Robert Stewart Photo 1

Nut And Retainer Fastener Assembly For Securing A Nut To A Panel, And Method Of Fastener Assembly Manufacture

US Patent:
6688825, Feb 10, 2004
Filed:
Feb 25, 2002
Appl. No.:
10/082753
Inventors:
Robert E. Stewart - Farmington Hills MI
Carl Lewis - Sterling Heights MI
Assignee:
Alpha Stamping Company - Livonia MI
International Classification:
F16B 3702
US Classification:
411174
Abstract:
A fastener assembly includes a flexible resilient U-shaped retainer having first and second wall portions and a third wall portion interconnecting adjacent ends of the first and second wall portions such that the first wall portion overlies and is spaced from the second wall portion. The first wall portion of the retainer has a forward edge with laterally spaced tabs at opposed ends. The tabs extend toward the second wall portion and have flat ends spaced from the second wall portion of the retainer. A flange nut is mounted on the first wall portion of the retainer, and has a flange disposed within the first wall portion and spaced from the second wall portion.


Robert Stewart Photo 2

Load Indicating Fastener And Method Of Manufacture

US Patent:
7635243, Dec 22, 2009
Filed:
Aug 10, 2006
Appl. No.:
11/501993
Inventors:
Jonathan M. Turner - Philadelphia PA, US
Nicholas Strumbos - Birmingham MI, US
Robert Stewart - Farmington Hills MI, US
Assignee:
TurnAnut, LLC - Livonia MI
International Classification:
F16B 31/02, F16B 43/00, F16B 29/34
US Classification:
411 10, 411 8, 411 9, 411533, 411156, 411536
Abstract:
A load indicating fastener comprising a load indicator and a fastener body. The load indicator comprises an annular body defining a through hole having a minimum diameter and a plurality of protuberances integral with a first face of the annular body and a corresponding plurality of indentations in a second face of the annular body opposite from the first face. The fastener body comprises a series of threads, a head defining a contact surface, and a shank depending from the contact surface. The shank includes a first portion having a first outside diameter less than the through hole minimum diameter such that the load indicator is received on the shank first portion and a second portion including at least one radially extending member having a second outside diameter greater than the through hole minimum diameter such that the load indicator is retained on the fastener body thereby.


Robert Stewart Photo 3

Nut And Retainer Fastener Assembly

US Patent:
7658579, Feb 9, 2010
Filed:
Oct 16, 2006
Appl. No.:
11/581520
Inventors:
Robert E. Stewart - Farmington Hills MI, US
Charles Lee Dardas - Rochester MI, US
Assignee:
Alpha Stamping Company - Livonia MI
International Classification:
F16B 39/284
US Classification:
411112, 411103, 411547, 280788
Abstract:
A nut and retainer fastener assembly includes a one-piece retainer having a flat base with an opening and a plurality of retainer clips extending from the base around the opening. At least one flange nut is secured to the base between adjacent clips and offset from the opening in the base. The opening preferably is polygonal, most preferably rectangular (including square), and the clips preferably are disposed at corners of the opening. The clips preferably have integral spring fingers that extend from ends of the clips toward the base and at an angle away from the opening to capture the mounting wall between the base and the ends of the spring clips. The base preferably has an ear extending away from the opening, most preferably laterally opposed ears extending away from the opening, and a flange nut mounted on each of the ears for alignment with a fastener opening in the mounting wall when the nut and fastener assembly is secured to the wall. The preferred but exemplary embodiment of the disclosure is for securing the end of a shock absorber to the mounting wall and includes a shock absorber mount secured by fasteners that extend through fastener openings in the mounting wall into threaded engagement with the flange nuts.


Robert Stewart Photo 4

Securing Mechanisms For Components Of A Load Indicating Fastener

US Patent:
8197167, Jun 12, 2012
Filed:
Oct 15, 2008
Appl. No.:
12/252196
Inventors:
F. Jonathan M. Turner - Philadelphia PA, US
Nicholas Strumbos - Birmingham MI, US
Robert Stewart - Farmington Hills MI, US
Assignee:
TurnAnut LLC - Livonia MI
International Classification:
F16B 31/02
US Classification:
411 10, 411533
Abstract:
A load indicating fastener comprising a load indicator, a fastener body, and a securing mechanism retaining the load indicator on the fastener body. The load indicator has integral protuberances struck and partially sheared from the load indicator to project from a face and leave corresponding indentations in an opposite face. The securing mechanism may be a member extending radially outward from the shank of the fastener body, such as a plurality of spaced apart tabs; at least one thread; at least one flare, stake, or form; a step ring; a series of bumps; a knurl; and one or more lobes. Alternative embodiments of the securing mechanism include a key-and-keyhole combination; an interference fit facilitated by a chamfer or by one or more lobes or by shaped surfaces of the fastener body and of the load indicator; one or more tack welded interconnections; and an adhesive patch.


Robert Stewart Photo 5

Fastener And Retainer Assembly

US Patent:
2013000, Jan 3, 2013
Filed:
Jun 28, 2011
Appl. No.:
13/170280
Inventors:
Robert E. Stewart - Farmington Hills MI, US
International Classification:
F16B 39/10, F16B 39/00
US Classification:
411337, 411511
Abstract:
A fastener and retainer assembly includes a threaded fastener having a head and a retainer projecting laterally from the head to engage adjacent structure and retain the head against rotation during threading. The retainer includes, and preferably consists essentially of, a one-piece metal stamping having raised embossments and/or a raised edge flange to strengthen the retainer against bending during use. The retainer preferably has a generally planar body from which the embossments and/or the edge flange extends.


Robert Stewart Photo 6

Fastener Assembly And Method Of Manufacture

US Patent:
7527464, May 5, 2009
Filed:
Feb 16, 2005
Appl. No.:
11/058975
Inventors:
Robert E. Stewart - Farmington Hills MI, US
Carl L. Lewis - Sterling Heights MI, US
Assignee:
Alpha Stamping Company - Livonia MI
International Classification:
F16B 35/00
US Classification:
411107, 411970
Abstract:
A fastener assembly includes a retainer clip having a base, a deck spaced from the base and an opening in the base aligned with the deck. A threaded fastener has a head received through the opening in the base and non-rotatably secured to the deck, and an externally threaded body that extends through the opening in the base.


Robert Stewart Photo 7

Staked Fastener Having Wrenchable Flats

US Patent:
5934851, Aug 10, 1999
Filed:
Jun 30, 1998
Appl. No.:
9/107629
Inventors:
Robert E. Stewart - Farmington Hills MI
Carl Lewis - Sterling Heights MI
Assignee:
MSD Stamping, Inc. - Livonia MI
International Classification:
F16B 3704, F16B 3928
US Classification:
411183
Abstract:
A fastener assembly having improved push-out resistance and bearing engagement characteristics while maintaining serviceability by having stakes located in the sidewall flats. The fastener is mounted in the opening of a retainer and a stake is located in the sidewall. The stake extends from the sidewall and engages the retainer face without disturbing the fastener edge, such that the retainer is retained to the fastener flange by sandwiching retainer between the stake and the flange.


Robert Stewart Photo 8

Direct Load Indicating Fastener Assembly

US Patent:
8591157, Nov 26, 2013
Filed:
Jul 30, 2010
Appl. No.:
12/847628
Inventors:
Robert E. Stewart - Farmington Hills MI, US
Nicholas Strumbos - Birmingham MI, US
International Classification:
F16B 31/02
US Classification:
411 10, 411 11, 411533
Abstract:
A direct load indicating fastener assembly includes a flange fastener of one-piece construction having a head with an integral flange. A load indicator has a flat base, a plurality of protuberances on the base and a peripheral rim. At least a portion of the peripheral rim overlies the fastener flange and captures the fastener in assembly with the load indicator while permitting free rotation of the fastener with respect to the indicator. The fastener preferably is a flange nut or a flange bolt. A hardened metal washer may be disposed between the load-indicating protuberances on the base and an undersurface of the fastener head.


Robert Stewart Photo 9

Retained Fastener

US Patent:
5971686, Oct 26, 1999
Filed:
Jun 30, 1998
Appl. No.:
9/107735
Inventors:
Robert E. Stewart - Farmington Hills MI
Carl Lewis - Sterling Heights MI
Assignee:
MSD Stamping, Inc. - Livonia MI
International Classification:
F16B 3910, F16B 3704
US Classification:
411120
Abstract:
A fastener assembly and a method for making the same wherein a non-fanged fastener is affixed to a retainer by the interaction of a tab and a stake. The fastener assembly preferably includes a retainer having a face with an opening and a tab positioned adjacent to the opening. The tab protrudes from the face and extends over the fastener. A staking die forms a stake which extends into engagement with the retainer such that the fastener is retained to the retainer by the interaction of the tab and the stake.