Bizarre Patents
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 |
| 7278640 | Quick-connect chuck mechanism A chuck is provided for retaining the shank of a tool bit or accessory, having a fixed diameter, inserted in a central channel at a distal end of the chuck. At least one torsion spring is mounted axially within a housing and has an inner dimension and shape comparab... | 10/09/2007 |
| 7131358 | Quick release device for releasing screw bit from socket A quick release bit socket assembly includes a socket and a screw bit is removably inserted in a first recess in a first end of the socket. A second recess is defined in a second end of the socket and a passage is in communication between the first and second recess... | 11/07/2006 |
| 6292992 | Process for compensating eccentricities and imbalances of rotating parts In order to permit a fast, precisely centric fastening of rotating tools, such as drills or milling tools in clamping sleeves, of such clamping sleeves or of workpiece holding devices, such as clamping chucks 4 in spindles 1 of turning machines, respectiv... | 09/25/2001 |
| 6053508 | Device for the centric and/or imbalance-free holding of workpieces or tools In order to permit a fast, precisely centric fastening of rotating tools, such as drills or milling tools in clamping sleeves, of such clamping sleeves or of workpiece holding devices, such as clamping chucks 4 in spindles 1 of turning machines, respectiv... | 04/25/2000 |
| 5762344 | Handle for a file having polygonal cross section A file of polygonal cross section is secured frictionally in a hole of a handle. The hole has as many corners as the file, and a surface extends between adjacent pairs of the corners of the hole. Each of those surfaces includes a concave segment and a con... | 06/09/1998 |
| 4790073 | Gauge pin holder A gauge pin holder including a straight handle with thickened end portions, each end portion having a transverse end slot, a pair of boots adapted to fit in the slots with sideways-directed wings, a passageway in each boot aligned with a pair of bores thr... | 12/13/1988 |
| 4355466 | Punching tool having replaceable tips A punching tool having a solid barrel adapted for hand holding, and having at one barrel end a head for hammering, and at the other barrel end a tapered neck. A threaded nut is removably attached to the barrel intermediate the neck and second barrel end. ... | 10/26/1982 |
| 4327465 | Handle for tool having a tang Disclosed herein is a handle for a tool having a shank, which handle comprises identical first and second half sections in mating engagement, which first and second half sections each include cooperating wall means defining a socket for receiving the shan... | 05/04/1982 |
| 4145061 | Clamping device for a dental tool A clamping device for a dental tool consists of a tubular body whose bore has two coaxially cylindrical, terminal portions and a reduced, slightly eccentric, cylindrical, central portion. A clamping sleeve is conformingly rotatable in one of the terminal ... | 03/20/1979 |
| 4083585 | Tube coupling A releasable tube coupling wherein the tube is releasably retained in the coupling body by means of a coil spring which embraces the outer cylindrical surface of the tube. In the relaxed condition, the spring has an inner diameter less than and frictional... | 04/11/1978 |
