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 |
| 7356878 | Door closer A door closer includes an anchor assembly for mounting on a door frame, an actuator assembly for mounting within the thickness of a door which is hinged for movement between open and closed positions, an operating member coupled by a linkage to the anchor assembly a... | 04/15/2008 |
| 7275284 | Damping device The invention relates to a damping device for parts of furniture which are joined together by means of hinges and which can be pivoted in relation to each other. The housing contains a damping fluid in the cavity thereof and a resistance element which can be displac... | 10/02/2007 |
| 7219391 | Door assembly with concealed door closer A door assembly and a door closer arranged and constructed so as to be wholly concealed within the associated door, yet is rendered readily accessible to effect the adjustment thereof to regulate or control the closing speed of the associated door. The door closer i... | 05/22/2007 |
| 7110713 | Safety structure for a cover device A safety structure for a cover device includes a base assembly and a cover assembly. The base assembly has a concave portion. The cover assembly is hinged to the base assembly and may cover the base assembly. The cover assembly has a cover body and a projection, whi... | 09/19/2006 |
| 6625847 | Door closers A door closer comprises an actuator assembly (20) adapted for fitting within the thickness of a door and an anchor member (10) adapted for fitting in a door frame in opposed relation to said edge face of the door. An operating member (30) is driven by spr... | 09/30/2003 |
| 5896619 | Refrigerator door hinge and closure mechanism A door hinge and closure mechanism which includes a hinge unit and a closure unit is described. The hinge and closure units are integral in that a hinge plate of the hinge unit serves as a support for components of the closure unit. Generally, the closure... | 04/27/1999 |
| 5269043 | Pneumatic hinge The invention is a pneumatic hinge which makes use of the air pressure action and counter balance to produce a spring-free hinge structuring to improve the ability to interrupt an opening or closing door at one's disposal of the traditional spring hinge, ... | 12/14/1993 |
| 4325164 | Offset pivot hinges with door closing devices A door closing device which is easily mounted on, and easily removed from, an offset pivot hinge. The door closing device has an outer sleeve, an inner member rotatably mounted in the outer sleeve and a coil spring having opposite ends thereof connected t... | 04/20/1982 |
| 4155144 | Damper device A damper device comprises first and second cylinders which are adjacent and rotatable with respect to each other and have respective hinge pieces, a piston operation member provided in the first and second cylinders in such a manner that it is rotatable w... | 05/22/1979 |
| 4100646 | Self-closing hinge A self-closing hinge is described which comprises two hinge members intended to be secured to a door or the like and to a door frame, respectively, one of the hinge members having a cylindrical sleeve closed at the lower end and the other member having a ... | 07/18/1978 |
