"Flight by machines heavier than air is unpractical and insignificant, if not utterly impossible."
Simon Newcomb, astronomer ; Said in 1902, less than two years before the first flight at Kitty Hawk
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| Number | Title | Issue Date |
| 7493873 | Removable restraint and anchor An apparatus for tethering an animal to a selected area or retaining the animal while exercising includes an anchor having a bottom portion for positioning into the ground and a top portion for positioning above the ground. The apparatus also includes a restraint ha... | 02/24/2009 |
| 7353780 | Extensible animal leash with exponentially-increasing restraint and incremental weight therefor The extensible leash system comprises a rope and a leash extending from the rope. A weight system including an incremental weight device is suspended to the rope and has a first, second, third and fourth weights mounted therein. There is also provided a mechanism fo... | 04/08/2008 |
| 7337638 | Anchoring device for temporarily tethering and object An anchoring device positionable within the ground for tethering an object to the ground includes a base portion having a first diameter, and an access aperture having a second diameter. The first diameter of the base portion is greater than the second diameter of t... | 03/04/2008 |
| 7207414 | Supporting bracket assembly for a horizontal lifeline cable A supporting bracket assembly for a horizontal lifeline cable (4) comprises a base plate (14), bracket means (24) and holding means (28) for the cable. The base plate (14) is provided for securing to a structure (6). The bra... | 04/24/2007 |
| 7101186 | Dally practicing systems A dally practicing system which simulates the conditions of roping a steer with relative safety. The portable dallying practice system takes up slack in a rope without applying excessive tension which could injure the user, provides a clutch system which allows for ... | 09/05/2006 |
| 7028641 | Spring-loaded animal tether assembly A rigid animal tether assembly comprises a rigid outwardly extending tie section and a rigid, hollow inwardly extending tilt section. The tie section includes tie elements for tethering an animal at a distal end section thereof and being connected at an opposing cou... | 04/18/2006 |
| 6955138 | Retractable leash assembly with a quick connect coupling assembly A retractable leash assembly structured to facilitate quick connection of an animal to a lead which is interconnected at a proximal end to an activation assembly and to a quick connect coupling assembly at a distal end. The leash assembly includes a release structur... | 10/18/2005 |
| 6925967 | Illuminated retractable leash The illuminated retractable leash is an animal tethering device which uses electroluminescent wire and a DC to AC inverter to illuminate not only the extendable and retractable physical tether to the animal, but also to illuminate the leash housing. Electroluminesce... | 08/09/2005 |
| 6904872 | Retractable leash for animals The invention relates to a retractable leash for animals, having a housing containing a spring-biased reel in which the remaining length of leash can be taken up and which is stoppable by an actuating mechanism for adjustment of the maximum extension length of the l... | 06/14/2005 |
| 6886499 | Retractable leash for animals A retractable leash for animals includes a housing in which the remaining length of a leash exiting the housing can be taken up, and can be arrested by an actuating mechanism and that the housing is configured for the attachment of additional elements for practical ... | 05/03/2005 |
| 6523500 | Rotating tether for securing an animal The present invention provides a device for tethering an animal such that it has freedom to roam, yet is confined in an area that is devoid of fencing. A common problem with tethering is that the animal wanders, dragging a rope behind him, becoming entang... | 02/25/2003 |
| 5022351 | Convertible tethering system The present invention teaches a portable convertible tethering system which is centered around a retractable leash cartridge. The leash cartridge may be used along to restrain children or animals while moving about, or alternatively, the cartridge may be ... | 06/11/1991 |
| 4796566 | Convertible tethering system The present invention teaches a portable convertible tethering system which is centered around a retractable leash cartridge. The leash cartridge may be used alone to restrain children or animals while moving about, or alternatively, the cartridge may be ... | 01/10/1989 |
| 4060244 | Retractable anchors for game bases An anchor unit is described for releasably securing bases used in baseball, softball and the like at their appropriate position on a playing field. This unit is normally for permanent installation and yet permits periodic conditioning, e.g., dragging, of ... | 11/29/1977 |