Did You Know...
...that "patent leather" got its name because the process of applying the polished black finish to leather was once patented?
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| Number | Title | Issue Date |
| 7287740 | Hoisting apparatus A cable attachment assembly, a hoist and a transportation system using the cable attachment assembly. The cable attachment assembly including: a plate pivotable about a first axis; first and second pivot assemblies pivotable about respective second and third axes, t... | 10/30/2007 |
| 7246712 | Logging carriage with towline-operated grapple A logging system including a yarder, a skyline, a towline, a carriage riding on the skyline, and a grapple depending from the carriage for grabbing logs and carrying them back to a landing. The carriage and grapple are moved along the skyline for positioning the gra... | 07/24/2007 |
| 7234605 | Logging grapple carriage A grappling carriage that is relatively lightweight and adapted to forcefully close first and second grapple legs with a log or a bundle of logs contained therein. The grappling carriage has a self-contained power supply that is remotely controlled by the operator. ... | 06/26/2007 |
| 7207277 | System and method for moving objects within two-dimensional space Embodiments of the invention move objects throughout two-dimensional space by using a support rope that is coupled with both opposing sides of the platform. This rope controls the Y-axis motion and Z-axis motion of the platform and is designated the YZ movement rope... | 04/24/2007 |
| 7127998 | Object movement system and method Embodiments of the invention move objects throughout two-dimensional and three-dimensional space by using a movement line that is coupled with a plurality of opposing sides of the platform. The movement line is used to control the horizontal axis motion and Z-axis m... | 10/31/2006 |
| 5653350 | Grapple carriage A remote-controlled grapple carriage picks up and transports logs along a skyline cable. The grapple carriage is designed to enable logs positioned laterally with respect to the skyline cable without any assistance from a logger at the logs. The grapple c... | 08/05/1997 |
| 4053999 | Automatic grab crane A time saving automatic hydraulic control for that sequence in operations in which a grab excursioning out of sight of the operator, is sequentially lowered open to engage work material, closed to pick up a load, and then hoisted with its load and emptied... | 10/18/1977 |
| 3996678 | Free-fall grab A scissors-type, free-fall grab is disclosed for picking up ground samples from a sea bed. The grab includes two grab halves which may pivot relative to one another. A transverse bar engages the upper ends of the grab halves to hold the grab in its opened... | 12/14/1976 |
| 3982642 | Method and arrangement for storing and transporting paper sheets Method of storing and transporting individual paper sheets abutting against each other to form a staple of sheets, in which a precompressed staple of sheets resting between upright support members on a support surface of a first magazine is gripped at opp... | 09/28/1976 |
| 3976322 | Self-aligning grapple swivel This disclosure relates to a novel self-aligning swivel apparatus which is adapted for attaching a grapple to a manipulating means such as a log loader boom or yarding carriage. The swivel comprises upper and lower portions interconnected by pivot means t... | 08/24/1976 |
