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An aircraft having vertical takeoff and landing capability provided with at least first and second laterally extending paddle wheels rotatable on a central axis perpendicular to the longitudinal axis of the aircraft fuselage and between its nose and tail.
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| Number | Title | Issue Date |
| 7373764 | Extruded upper beam slab bolster for use in construction A bolster for use in construction has a beam, a first plurality of leg members on one side of the beam, a second plurality of leg members on an opposite side of the beam, and a plate having a first receptacle on one side and a second receptacle on the opposite side.... | 05/20/2008 |
| 7284354 | Upper beam slab bolster with extruded plates A bolster for use in construction has a beam, a first plurality of leg members on one side of the beam, a second plurality of leg members on an opposite side of the beam, a first plate having a receptacle on one side thereof and a second plate having a receptacle on... | 10/23/2007 |
| 6637171 | Apparatus and method for reinforcing concrete using rebar isolators According to the preferred embodiments of the present invention, an apparatus and method for suspending rebar is disclosed. The rebar isolator of the present invention comprises a pointed metal spike or stake with one or more hollow-bodied rebar supports.... | 10/28/2003 |
| 6502361 | Rod chairs Rod chairs for use in concrete form for positioning reinforcement rods prior to filling with concrete includes a flat rectangular metal blank for folding into a rod chair that includes an elongated planar portion having a pair of spaced portions to be ben... | 01/07/2003 |
| 6161360 | Apparatus for supporting reinforcement bar An apparatus for supporting reinforcement bar comprises a support assembly including a first support and a second support. The first support has a ground-engaging portion. The second support is coupled to the first support so that the ground-engaging port... | 12/19/2000 |
| 6141937 | Holder for adjustable positioning of reinforcing rods The current invention is directed to a holder (32) for adjustable positioning of reinforcing rods (49). The holder has a horizontal support structure and a means for holding a reinforcing rod (49). The holder is comprised of a first leg member (33), a sec... | 11/07/2000 |
| 5893252 | System for affixing rebar lattice to receive concrete An apparatus for fixating and elevating an interconnected rebar lattice having individual longitudinal and transverse rebar intersections for use as support for poured concrete in highway and other construction. The apparatus including a holding portion h... | 04/13/1999 |
| 5791095 | Chair for use in construction A chair having a receiving area with a horizontal section and a generally parabolic section extending transverse to the horizontal section, and a plurality of separate legs extending downwardly from the receiving area. Each of the legs has a foot extendin... | 08/11/1998 |
| 5595039 | Chairs of adjustable height for use in concrete constructions A chair for supporting, positioning and retaining a concrete reinforcing bar in place at predetermined height in the pouring and construction of concrete slabs or beams at a jobsite wherein the concrete reinforcing bar remains as an integral, strengthenin... | 01/21/1997 |
| 5561957 | Composite wood-concrete building member Building or construction members are provided which include wooden girders or beams which form a framework onto which is molded a concrete plate or slab. A connection is formed between the beams and the concrete slab at least one sheet metal strip (4) hav... | 10/08/1996 |
| 5555693 | Chair for use in construction A chair for use in construction including a receiving area and a plurality of legs extending downwardly from the receiving area. Each of the plurality of legs has a foot extending horizontally outwardly therefrom. The foot of one of the legs is separate f... | 09/17/1996 |
| 5456051 | Compression spacer for bar reinforcement The spacer support (20) includes a support base (22) and a receptacle (26) which are welded together at interfitting annular flanges (46 and 64). A bearing plug (24) includes a circular support plate (48) covering the upper surfaces of the radial walls (3... | 10/10/1995 |
| 5301485 | Nelson stud screed post assembly A screed post assembly which may be easily and quickly interfaced to a Nelson stud extending upwardly from a horizontal support beam used in the construction of a building framework. The screed post serves as a support for a screed support system which is... | 04/12/1994 |
