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Robert McCracken Patents
Inventor:
McCracken; Robert
Address:
Des Moines, IA
No. of patents:
14
Patents:




Patent Number Title Of Patent Date Issued
D510260 Wing nut October 4, 2005
D504183 Shoring post April 19, 2005
D465074 Power waxer October 29, 2002
D349637 Plunge router August 16, 1994
7387470 Stackable concrete forming apparatus components June 17, 2008
A stackable component for concrete forming systems is described. End plates are secured to opposite ends of a longitudinal element having a round profile that prevents stacking of the components. The end plates nest together and receive for retention the longitudinal element to permi
7210664 Concrete form having adjustable curvature May 1, 2007
Supplemental bridging straps are used to increase the strength of a flexible metal concrete form assembly. A metal form has a flexible panel member with a perimetral flange projected laterally from one side thereof. Each of a pair of transversely opposite side sections of the flange
6941708 Reduced friction coupling for shoring apparatus September 13, 2005
A reduced friction coupling which interconnects a lower, supporting member and an upper, supported member of a concrete forming apparatus to reduce the force required to lower the height of the forming apparatus under load on the members by a formed concrete structure. Two or more polyme
6581898 Bearing block for alignment and handling of concrete forms June 24, 2003
Modular concrete form components which, when assembled into large wall form assemblies are sufficiently strong to resist the bending forces applied during picking and placing of the wall form assemblies without the need for the attachment of additional or external stiffening members. A b
6502802 Double bias corner form January 7, 2003
A corner form assembly for forming inside corners of concrete structures. A pair of double bias form components, each of which has an acute angle between a side rail and the face sheet are arranged with the side rails in contact engagement to form a form assembly with an inside angle equ
5934020 Window lock and guard August 10, 1999
An adjustable and pivotable window guard to be placed above a window inside a structure. The window guard provides an attractive appearance and excellent security. Hinge plates that have upwardly directed hinge tubes located thereon are secured on the inside wall proximal a window. A fir
5491896 Attachment and accessory scraper blades for detail sander February 20, 1996
A detail sander having a scraper blade of a shape that allows for different geometric configurations to be oriented into the working position to contact a work surface. Blades may also be adjusted forward or rearward relative to the leg of the sander to allow for changes in the stroke of
5369527 Melanoma detection device November 29, 1994
An apparatus and method for detecting indications of skin cancer, includes a magnifying glass for magnifying a lesion on an area of skin to be tested and indicia for determining the presence or absence of skin disease indications. The magnifying glass and the indicia are formed on a clea
5320463 Depth stop for a plunge router June 14, 1994
A plunge type router having a thumb screw depth stop mounted to the base of the router. The depth stop is comprised of a stop member encircled by a scale sleeve, wherein the two cooperate translationally to provide both visual and audible indications of the precise depth-of-cut for the r
5315199 Bidirectional brush holder assembly May 24, 1994
A brush holder assembly (10) adapted for selective cooperation with a plurality of motor housings (12,14) and for holding a brush (90) in contact with a rotatable commutator (42) is disclosed. The brush holder assembly (10) comprises an elongated brush (90), an elongated body (50) an


 
 
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