Did You Know...
...that in 1800 ether was first used by partyers as a fun diversion? Sniffing the gas led to hilarious and raucous laughter as people watched each other become more and more intoxicated and silly. Several doctors independently realized the value ether would have to anesthetize surgery patients. Of those who claimed rights to the "discovery," none had a happy ending. One had a seizure and died defending his rights. Another spent his life in an asylum because he had been denied acclaim. A third became addicted to chloroform and, in a New York City jail, he soaked a cloth in the drug, severed an artery and bled to death.
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| Number | Title | Issue Date |
| 4793104 | Guide for laying glass blocks A one-piece guide adapted to be inserted into mortar, between recessed surfaces presented by opposing faces of adjacent glass blocks, to space and align them with respect in each other in the formation of a masonry structure. The guide comprises a relativ... | 12/27/1988 |
| 4756136 | Interlocking spacer apparatus for masonry construction A masonry construction device useful for uniformly spacing adjacent masonry elements, for reinforcing the elements, and for tying the elements to an adjacent structure, comprises a pair of spaced sawtooth shaped members having a plurality of bearing surfa... | 07/12/1988 |
| 4748785 | Support member for reinforcing steel A resilient support member for reinforcing steel having first and second legs separated by an open cavity and being normally axially aligned in the inoperative position of the support member. The support member is adapted to assume an operative position b... | 06/07/1988 |
| 4744190 | Spacing retainer including locking means for reinforcements The spacing retainer contains spacer elements comprising a multiple number of interconnected angle elements and locking elements. The locking elements are lockingly connected with a first structural steel fabric by means of locking parts at their free end... | 05/17/1988 |
| 4702048 | Bubble relief form for concrete A rigid, light-weight, thermoplastic bubble insulation form for cast in situ concrete slabs includes hemispherical void spaces for reduction of concrete volume and thermal insulation characteristics. An upper hemispheric surface provides an integral seati... | 10/27/1987 |
| 4689867 | Concrete reinforcement spacer and method of use A welded wire concrete reinforcement spacer having spaced uprights with tops projecting up from the bottoms toward one another, a support means on the uprights and located below the tops of the uprights, the tops being spaced sufficiently to allow a reinf... | 09/01/1987 |
| 4689931 | Masonry construction device A masonry construction device useful for uniformly spacing adjacent masonry elements, for reinforcing the elements, and for tying the elements to an adjacent structure, comprises a pair of spaced sawtooth shaped members having a plurality of bearing surfa... | 09/01/1987 |
| 4655023 | Spacer for construction use A spacer device for use in supporting bar-like members in construction applications, the device including a body having a plate portion with a support post portion having a saddle configured on the upper edge thereof, with a plurality of legs affixed to t... | 04/07/1987 |
| 4644726 | Steel placement assembly A steel placement assembly comprising a plurality of steel placement lock members which mate to form circular cavities for supporting and retaining steel reinforcing bars along their transverse length and intermediate their ends in a concrete structural m... | 02/24/1987 |
| 4644727 | Strand chair for supporting prestressing cable and cross-mesh in elongated precast concrete plank The chairs include a lower chair portion for supporting multiple prestressing cables at the bottom of a plank and a narrow upper chair portion for supporting an upper prestressing cable located in the web between the hollow cores of the prestressed plank.... | 02/24/1987 |
| 4617775 | Extensible reinforcing bar assembly and clip An extensible reinforcing bar assembly for readily permitting a plurality of bars to be extended with respect to each other and establish a desired combined length. The assembly includes a plurality of improved plastic clips for attaching the two bars whi... | 10/21/1986 |
| 4598523 | Reinforcement support spacer A reinforcement support spacer for spacedly positioning one or more concrete reinforcement members from a surface on which concrete is poured. The spacer comprises a support which has at least one recess therein for receiving a reinforcement member. Barbs... | 07/08/1986 |
| 4578917 | Interlocking-segment spacer beam Spacing-beam segments formed from a single piece of sheet metal. Each segment is formed with a crowned horizontal portion and a depending spacer foot at one of the ends of the segment. Openings are formed on the horizontal beam portion adapted to receive ... | 04/01/1986 |
| 4562672 | Stake for concrete smoothing operation An improved stake for supporting guides for screed members used in concrete smoothing. The stake is a hollow, open-ended tube having a wall of substantially uniform cross-section along at least most of its length, and having an upper edge adapted to suppo... | 01/07/1986 |
| 4559064 | Electrostatic precipitator having spacers A spacer formed of a relatively rigid frame is slidably adjustably mounted on and extends between a pair of horizontally spaced vertically extending ribs of electrostatic precipitator plates to maintain the plates in a predetermined horizontal spaced rela... | 12/17/1985 |
| 4498270 | Support for positioning reinforcing rods or mesh in concrete or the like A support is provided for reinforcing rods or mesh. The support includes a plate of substantially planar construction. A cruciform structure is provided beneath and supporting the plate. The cruciform structure includes a plurality of legs and tips depend... | 02/12/1985 |
| 4463538 | Reinforcing network for concrete structure A complex concrete reinforcing network is provided with longitudinal reinforcing bars and interconnected stirrups each having a plurality of clips in a specific geometric arrangement acting as a jig and said reinforcing network is embedded in concrete for... | 08/07/1984 |
| 4452026 | Spacer for wire reinforcement in concrete structures such as pipe An apparatus, method and assembly are disclosed for spacing a wire reinforcement from a concrete article form such as pipe form. Spacers are employed which include a U-shaped spacer portion extending from a mounting means which includes a positioning mean... | 06/05/1984 |
| 4445308 | Reinforcement supports A support for maintaining concrete reinforcement at a pre-determined level during the pouring of concrete there around comprises an assembly of at least a pair of adjacent inverted `U` shaped metal yokes 10. Each yoke comprises a pair of spaced substantia... | 05/01/1984 |
| 4367973 | Structural strap tie A metal structural tie strap for fastening two or more nailable wood members to one another; the strap being formed with nail openings which are equidistant from one another and fall within nail holding means adjacent the edges of the strap. The edges of ... | 01/11/1983 |
| 4334397 | Masonry structure and apparatus and process for spacing block in the structure A masonry wall is formed of a plurality of masonry blocks, i.e., bricks, with mortar, therebetween and in which spacing of the bricks from each other, both vertically and horizontally, is dictated by plastic spacer elements. The spacer element includes a ... | 06/15/1982 |
| 4318262 | Bar positioning member and its forming apparatus A bar-positioning member comprising a long metal wire or wire rod with at least one indentation to receive a metal bar intersectingly disposed relative to the wire. The indentation is formed by bending part of the wire and it has only one opening which op... | 03/09/1982 |
| 4301638 | Spacer for reinforced concrete structures A spacer element is provided for attachment to a pair of parallel wires of a mesh spaced from a surface of a concrete form or wall and having a projection adapted to maintain the spacing between the wall and the plane of the mesh, the element being of gen... | 11/24/1981 |
| 4190999 | Locator for vertical reinforcing bars A fixture for precisely locating the vertical reinforcing steel bars in a hollow block wall at the exact positions specified by the design engineer. The fixture comprises one or more steel wires forming a horizontal supporting structure that is adapted to... | 03/04/1980 |
| 4166347 | Composite structural member and method of constructing same A composite structural member such as an electric transmission or distribution pole, having a thin-walled metal casing, a core of non-metallic settable rigid material such as concrete, and reinforcing members embedded in the core, and method of constructi... | 09/04/1979 |
| 4159605 | Parking curb reinforcing bar support A parking curb reinforcing bar support comprising of one piece plastic body with spaced support portions for respective reinforcing bars. Each portion includes a surrounding wall with an opening through which the associated reinforcing bar can be inserted... | 07/03/1979 |
| 4132045 | Reinforcing bar support A bar support for supporting a plurality of longitudinally extending reinforcing bars and a transversely extending reinforcing bar includes a cross rod which is positioned beneath the transversely extending reinforcing bar and extends along the bar in par... | 01/02/1979 |
| 4117639 | Reinforced insulated concrete building panel A reinforced insulated concrete building panel has an inner layer of concrete and an outer layer of concrete, with a layer of insulating material sandwiched therebetween. Shear connectors are embedded in the layer of concrete and extend from the outer lay... | 10/03/1978 |
| 4107895 | Reinforcing bar locating means The disclosure relates to a reinforcing bar locating means adapted for disposition in a mortar layer between courses of concrete blocks; the reinforcing bar locating means made of a single wire and comprising a generally S-shaped intermediate portion prov... | 08/22/1978 |
| 4085559 | Hog slat reinforcing bar support A hog slat reinforcing bar support comprising a one-piece plastic body with spaced support portions for respective reinforcing bars. Each portion includes a surrounding wall with an opening through which the associated reinforcing bar can be inserted and ... | 04/25/1978 |
| 4063397 | Bar spacer for reinforced concrete A bar spacer for concrete reinforcing bars. The spacer comprises, a foot portion to contact a form for concrete. A bar gripping portion is adapted to grip reinforcing bar for concrete. A plurality of spaced teeth are formed on the internal surface of the ... | 12/20/1977 |
| 4034529 | Rebar bolster for solid grouted walls A solid grouted wall is formed of layers of block with spaces being formed within the block or between block to accommodate rebar and concrete. A rebar support comprising two parallel and laterally spaced longitudinally extending rods and a plurality of c... | 07/12/1977 |
| 4007572 | Hog slat reinforcing bar support A hog slat reinforcing bar support comprising a one-piece plastic body with first and second support portions for respective reinforcing bars. Each portion includes a surrounding wall with an opening through which the associated reinforcing bar can be ins... | 02/15/1977 |
| 3950911 | Apparatus for reinforcing concrete Method and apparatus for reinforcing concrete, and like materials, wherein modular units or sections of reinforcing mesh are provided which are connectable to provide a larger reinforcing mesh. A variety of forms of connections between adjacent mesh secti... | 04/20/1976 |
