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Felix Hoffmann, a German chemist, was searching for something to relieve his father's arthritis. In doing so, he "rediscovered" acetylsalicylic acid and in 1900, patented a stable process for developing it. Hence, we have aspirin.
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| Number | Title | Issue Date |
| 7914224 | Connecting structure for hand-operated tools and handles This invention is generally directed to a new connecting structure for connecting the bodies of hand-operated tools to their handles. It solves the technical difficulty in standardizing the connection of hand-operated tools and handles. The technical strategy involv... | 03/29/2011 |
| 7284672 | Multi-stage fastening structure A multi-stage fastening structure comprises an extension rod, a plurality of locking devices, and two fastening devices. A lateral retaining plate is formed at each end of the extension rod. A first flange and a second flange having different outer diameters from ea... | 10/23/2007 |
| 7228669 | Suspended table assembly A suspended table assembly includes a first support and a second support that are vertically spaced from each other. A plurality of legs is provided. Each of the legs has a first end and a second end. Each of a plurality of first brackets is pivotally coupled to one... | 06/12/2007 |
| 7008191 | Compressor wheel assembly A compressor wheel assembly comprises a compressor wheel (7) mounted to a rotating shaft (8), which extends through a bore provided along the rotational axis of the wheel (7). The wheel (7) is keyed to the shaft (8) such that rotat... | 03/07/2006 |
| 6575652 | Structural couplings and system An annular collar-clamp attaches to a vertical post at selected height and radial orientation and includes an annular pattern of upper and lower dovetail mount sites receiving a bifurcated component mounting assembly having a corresponding inter-fitting p... | 06/10/2003 |
| 5785447 | Connector for structural apparatus A connector for a structural apparatus. The connector includes a pair of oppositely disposed C-shaped connectors which are adapted to surround a post and are detachably connected to one another. The connectors include a first movable position allowing mov... | 07/28/1998 |
| 5636935 | Saw chain drive device and method of manufacturing saw chain drive device A saw chain drive device comprising a clutch drum and a drive member. The clutch drum has an axis of rotation and includes an end wall forming at least two apertures, and at least one of the apertures is radially spaced from the axis of rotation. The driv... | 06/10/1997 |
| 5575580 | Connector for structural apparatus An assembly for joining a generally cylindrical member to at least one other member wherein the assembly includes a pair of oppositely disposed C-shaped connectors that when connected together are in one of two selected conditions. When in the first condi... | 11/19/1996 |
| 5564660 | Support frame assembly for plastic bags A portable frame having a lower horizontal base ring and an upper horizontal open support ring interconnected by vertical rods which engage threaded pressure couplings on the rings. The couplings of the support ring have outwardly facing grooves for recei... | 10/15/1996 |
| 5551792 | Connector A combination is disclosed wherein an inverted T-shaped ceiling runner is connected to a decorative element by a connector. The decorative element has parallel grooves into which an upper portion of the connector can be positioned in the grooves to hold t... | 09/03/1996 |
| 5335881 | Attachment device An apparatus is disclosed for capturing and holding a rod, bar or similar member; the apparatus having in one aspect a body member with a recess therein and a hook extending from the body member, the hook and recess defining a capture envelope for receivi... | 08/09/1994 |
| 5275210 | Nose guide for a heddle frame A nose guide including a fastening mechanism for attaching the nose guide to a harness frame on a weaving loom. The fastening mechanism includes a pair of elongated straps and a pair of bosses carried on the inner surfaces of the straps which are provided... | 01/04/1994 |
| 5261908 | Expandable vertical prosthetic rib Applicant's invention includes a prosthetic rib (10) which is adjustable in length through relatively minor surgical procedures subsequent to initial implantation along with methods for using same in the treatment of chest wall deformities and scoliosis a... | 11/16/1993 |
| 4916882 | Member for connecting panels This invention relates to a member for connecting panels comprising a central core covered by sheets, wherein said member comprises two small plates parallel to each other and connected to each other by a transverse connecting lug, and which are adapted t... | 04/17/1990 |
| 4715161 | Suspended ceiling grid clip A spring steel clip for suspended ceiling grids may be used both as an edge molding attachment starter clip and also as a clip for holding intersecting tee bars together with the intersection being horizontally adjustable with simple finger pressure. The ... | 12/29/1987 |
| 4625630 | Roof vent and method of making same A nestable roof vent for use on the roofs of grain bins and other structures where circulation of air within the structure is required. The vent includes a bird screen sized to extend across the interior of the vent housing that is secured to a flange ove... | 12/02/1986 |
| 4597118 | Combined bed frame and box spring assembly A bed spring assembly and a supporting rectangular steel frame structure incorporating leg supports, the frame structure including cross beams which in certain embodiments are prestressed in tension or compression to obtain maximum load support without sa... | 07/01/1986 |
| 4164984 | Garden implement A garden implement including an elongate, manually engageable handle and a working head at one end of the handle; the head is Z-shaped and has straight laterally spaced parallel cutting blades, a straight central member extending diagonally between opposi... | 08/21/1979 |
| 4114327 | Light fixture support A light fixture support is provided comprising a support bar having slots at the extremities which cooperate with inverted "T" members forming the framework for a conventional suspended ceiling to adjustably locate and secure a light fixture within the fr... | 09/19/1978 |
| 4062087 | Self-sustaining spring fastener clips for furniture rails and assemblies thereof A metallic clip designed for holding the end bar of a sinuous cushion-supporting spring in position on one rail of an article of furniture and also having associated therewith jaw portions which straddle the rail and, when pressed inwardly against the rai... | 12/13/1977 |
| 3969793 | Spring construction An attachment clip and assembly for attaching the end of a sinuous spring band to a wood furniture frame rail without the need for any nails or staples whatever and without any hammering or driving to engage the anchoring tangs. The clip has an anchor leg... | 07/20/1976 |
| 3960092 | Collapsible stool A collapsible stool comprising: A. a tube having a first end and a second end; B. a first cap detachably mounted to the first end of the tube; C. a second cap detachably mounted to the second end of the tube; D. a plurality of leg supports radially and detachably mounte... | 06/01/1976 |
| 3932047 | Connecting systems In a connecting system for connecting a first hollow tubular member to a second member the first member is provided with a circumferentially-extending slot of a longitudinal extent sufficient to receive the second member therein, and the second member is ... | 01/13/1976 |
| 3930737 | Stud assembly A stud assembly produced by holding in fixed position a head portion having a gripping surface extending from a base. A deformable washer is then extended over the base. A stud member is provided with a receptacle end portion and positioned with respect t... | 01/06/1976 |
