Did You Know...
...that the x-ray was discovered purely by accident? When German physicist Wilhelm Konrad von Roentgen was experimenting with cathode rays in 1895, he put an activated Crookes tube in a book and went out to lunch. When he returned, he discovered that a key that had also been placed in the book showed up as an image on the developed film!
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| Number | Title | Issue Date |
| 6728995 | Spectacles caddy A spectacles caddy can be attached by its spring clip to a vehicle visor or other similar substantially flat, thin, and stiff object. The shell of the caddy is made in two shallow elongate half boxes attached together at one short end by a hinge, and at the other by... | 05/04/2004 |
| 7017517 | Waste collection system and apparatus for feeders An outdoor feeder apparatus for wild birds comprises a platform having at least one low point and constructed and arranged to be connected at a discharge opening at each low point to an inlet opening in a hollow support attachable to a base and adapted to provide an... | 03/28/2006 |
| 6989079 | High support double layer forming fabric A double layer forming fabric for a paper making machine is woven to an overall repeating pattern, which comprises in combination paper side layer weft yarns, machine side layer weft yarns, and warp yarns. The paper side layer weft yarns interweave with the warp yar... | 01/24/2006 |
| 6981682 | Support device for displaying individual books or similar items A support device for displaying individual objects, such as books in a readable position, comprises a backrest having a substantially planar upper portion having an upper edge and a substantially curved lower portion comprising a cradle having a free edge. A support... | 01/03/2006 |
| 6928475 | Method of determining the topology of a network of objects A method of determining a connection between a data emitting device j having address IP(j) and a data receiving device i having address IP(i) via a routing device, wherein the routing device utilizes a management information database MIB, establishing a mask field i... | 08/09/2005 |
| 6836258 | Complementary dual antenna system The present invention provides a dual antenna system where a first antenna element has a metallic surface with openings that are resonant at frequencies other than the operating frequency of a second antenna element. The openings are sized such that the metallic com... | 12/28/2004 |
| 6826980 | Drive and control systems for high speed intermittent motion generations, control and applications The present invention seeks to provide a system for high speed intermittent motion. The system consists of one or more intermittent motion generators. Each motion generator consists of a first and a second drive system with each drive system having its own control s... | 12/07/2004 |
| 6817393 | End-dogging head saw and method An end-dogging head saw is disclosed comprising a log cradle for supporting a log, a log-turning device for rotating the log into proper alignment with a pair of band saws, the log-turning device depending from overhead log carriages which move the log into contact ... | 11/16/2004 |
| 6795969 | Transfer of basic knowledge to agents A method of establishing a process agent comprising storing a library of first software programs representing system resources, storing a second software program representing a corresponding service agent which includes pointers to associated ones of the first softw... | 09/21/2004 |
| 6790007 | Wind turbine structure A vertical axis wind turbine including a wind turbine which depends on a vortex down wind of the turbine enhancing the air flow past the vertical turbine. The vertical axis wind turbine structure includes a rectangular shaped turbine with four orbiting panels mounte... | 09/14/2004 |
| 6748933 | Electrostatic fluid conditioner A method and apparatus for conditioning fluid flowing through a conduit in which two coils (50,60) are coiled around the conduit at different locations and connected to a circuit (40) which generates square wave signals which are alternately fed to the... | 06/15/2004 |
| 6728670 | Method of determining the topology of a network by transmitting and monitoring sequences of orthogonal signals A method of determining the topology of a network comprising: transmitting a signal comprised of a sequence of bursts of packets formed of orthogonal signals, monitoring devices in the network including the destination device for reception of the signal, and definin... | 04/27/2004 |
| 6676725 | Cold bonded iron particulate pellets Shaped bodies containing particulate iron materials, such as cast pellets, briquettes and the like, with sufficient strength to withstand temperatures of up to at least 1000° C. can be obtained by using a fully hydrated high-alumina cement as the binder.... | 01/13/2004 |
| 6673222 | Biological activity probe A biological activity probe for the detection on-line of the presence of sulphide including an enzyme electrode; a counter electrode; a reference electrode; and if desired a corrosion electrode. The enzyme electrode includes an immobilised source of sulfi... | 01/06/2004 |
| 6647477 | Transporting data transmission units of different sizes using segments of fixed sizes A data traffic management system that has the capability of writing data to the buffer memory at twice its normal rate. The data traffic management system uses a pointer structure that can reference either a single or a dual segment memory bank. A dual se... | 11/11/2003 |
| 6603705 | Method of allowing random access to rambus DRAM for short burst of data Methods and devices for arranging memory access operations to minimize memory bank conflicts between such operations. A fixed pattern of memory access operations is implemented to minimize the effects of a transition between a read memory access operation... | 08/05/2003 |
| 6584101 | Communication method for packet switching systems A method of communicating data frames between nodes in a network comprised of one or more end system nodes where each end system node has a unidirectional ingress port and a unidirectional egress port. The method comprises transmitting a data frame from a... | 06/24/2003 |
| 6329792 | Device and system for management of battery back up power source The invention relates to a device for managing battery packs from which it is powered by measuring and monitoring the operating capacity of individual battery modules in a battery pack. A programmable logic controller directs the selective closing of rela... | 12/11/2001 |
