초록 ▼

The specification and drawings describe and show a package and delivery system method and display to be used in a retail business environment where customers choose to purchase an item represented by a displayed example. The delivery is handled through a central facility and a post card is used by t

The specification and drawings describe and show a package and delivery system method and display to be used in a retail business environment where customers choose to purchase an item represented by a displayed example. The delivery is handled through a central facility and a post card is used by the purchaser to notify the recipient of the impending receipt of the purchased item. The invention allows for a retailer to operate in essentially an inventory free environment. Graphic designs included on the postcard may be limited edition prints. It is emphasized that this abstract is provided to comply with the rules requiring an abstract that will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope of meaning of the claims. 37 CFR 1.72(b).

대표청구항 ▼

The specification and drawings describe and show a package and delivery system method and display to be used in a retail business environment where customers choose to purchase an item represented by a displayed example. The delivery is handled through a central facility and a post card is used by t

The specification and drawings describe and show a package and delivery system method and display to be used in a retail business environment where customers choose to purchase an item represented by a displayed example. The delivery is handled through a central facility and a post card is used by the purchaser to notify the recipient of the impending receipt of the purchased item. The invention allows for a retailer to operate in essentially an inventory free environment. Graphic designs included on the postcard may be limited edition prints. It is emphasized that this abstract is provided to comply with the rules requiring an abstract that will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope of meaning of the claims. 37 CFR 1.72(b). an improved mechanical face seal assembly, the earth-boring bit comprising: a bit body; at least one cantilevered bearing shaft extending inwardly and downwardly from the bit body; at least one cone mounted for rotation on the bearing shaft; a seal assembly disposed between the bearing shaft and the cone, the seal assembly including at least one rigid seal ring having a body and an annular PCD face located thereon; and wherein the face has an inner diameter, an outer diameter, and a plurality of recesses circumferentially spaced apart from each other around the ring and radially spaced apart from each other between the inner and outer diameters. 9. The bit according to claim 1, wherein the face has an inner diameter, an outer diameter, a plurality of grooves, and a land located adjacent the outer diameter, the grooves extending from the inner diameter and terminating at the land. 10. An earth-boring bit with an improved mechanical face seal assembly, the earth-boring bit comprising: a bit body; at least one cantilevered bearing shaft extending inwardly and downwardly from the bit body; at least one cone mounted for rotation on the bearing shaft; a seal assembly disposed between the bearing shaft and the cone, the seal assembly including at least one rigid seal ring having a body and an annular PCD face located thereon; and wherein the face has an inner diameter, an outer diameter, a plurality of intersecting grooves, and a land located adjacent the outer diameter, the grooves extending from the inner diameter and terminating at the land. 11. The bit according to claim 1, wherein the face has a flat engaging portion and a conical tapered portion extending from the engaging portion, wherein the conical tapered portion is of a greater width that the engaging portion. 12. An earth-boring bit with an improved mechanical face seal assembly, the earth-boring bit comprising: a bit body; at least one cantilevered bearing shaft extending inwardly and downwardly from the bit body; at least one cone mounted for rotation on the bearing shaft; lubricant located in bearing spaces between the bearing shaft and the cone; and a seal assembly disposed between the bearing shaft and the cone for sealing the lubricant within the bearing spaces, the seal assembly including first and second seal rings, each of the first and second rings having a body with at least a portion being of a carbide and having an annular continuous PCD face located thereon. 13. An earth-boring bit with an improved mechanical face seal assembly, the earth-boring bit comprising: a bit body; at least one cantilevered bearing shaft extending inwardly and downwardly from the bit body; at least one cone mounted for rotation on the bearing shaft; lubricant located in bearing spaces between the bearing shaft and the cone; a seal assembly disposed between the bearing shaft and the cone for sealing the lubricant within the bearing spaces, the seal assembly including first and second seal rings, each of the first and second rings having a body with at least a portion being of a carbide and having an annular PCD face located thereon; and wherein at least one of the PCD faces has a recess formed therein for enhancing lubrication. 14. An earth-boring bit with an improved mechanical face seal assembly, the earth-boring bit comprising: a bit body; at least one cantilevered bearing shaft extending inwardly and downwardly from the bit body; at least one cone mounted for rotation on the bearing shaft; lubricant located in bearing spaces between the bearing shaft and the cone; a seal assembly disposed between the bearing shaft and the cone for sealing the lubricant within the bearing spaces, the seal assembly including first and second seal rings, each of the first and second rings having a body with at least a portion being of a carbide and having an annular PCD face located thereon; and wherein at least one of the PCD faces has a plurality of rece sses circumferentially spaced apart from each other for enhancing lubrication. 15. An earth-boring bit with an improved mechanical face seal assembly, the earth-boring bit comprising: a bit body; at least one cantilevered bearing shaft extending inwardly and downwardly from the bit body; at least one cone mounted for rotation on the bearing shaft; lubricant located in bearing spaces between the bearing shaft and the cone; a seal assembly disposed between the bearing shaft and the cone for sealing the lubricant within the bearing spaces, the seal assembly including first and second seal rings, each of the first and second rings having a body with at least a portion being of a carbide and having an annular PCD face located thereon; and wherein each of the PCD faces has an inner diameter and an outer diameter, and at least one of the PCD faces has a plurality of recesses circumferentially spaced apart from each other and radially spaced apart from each other between the inner and outer diameters. 16. The bit according to claim 12, wherein each of the PCD faces has an inner diameter and an outer diameter, and at least one of the faces has a plurality of grooves extending from the inner diameter to a land located adjacent the outer diameter. 17. An earth-boring bit with an improved mechanical face seal assembly, the earth-boring bit comprising: a bit body; at least one cantilevered bearing shaft extending inwardly and downwardly from the bit body; at least one cone mounted for rotation on the bearing shaft; lubricant located in bearing spaces between the bearing shaft and the cone; a seal assembly disposed between the bearing shaft and the cone for sealing the lubricant within the bearing spaces, the seal assembly including first and second seal rings, each of the first and second rings having a body with at least a portion being of a carbide and having an annular PCD face located thereon; and wherein each of the PCD faces has an inner diameter and an outer diameter, and at least one of the faces has a plurality of intersecting grooves extending from the inner diameter to a land located adjacent the outer diameter. 18. The bit according to claim 12, wherein one of the faces has a flat engaging portion and a conical tapered portion extending from the engaging portion, wherein the conical tapered portion is of a greater width that the engaging portion. tolerance area on the dead band sensor and upon activation of the first wheel steering arrangement of the steering unit (2). 7. A steering system according to claim 6, characterised in that a direction sensor (22) is provided, which monitors a steering direction, the correcting device (14) releasing the pressurised fluid only when a correcting direction and the steering direction are the same. 8. A steering system according to claim 7, characterised in that the correcting device (14) is connected with a steering speed sensor and only releases pressurised fluid when the steering speed is lower than a predetermined value. 9. A steering system according to claim 6, characterised in that a selecting device (15) is arranged between the steering unit (2) and the steering arrangements (10, 11), the correcting device (14) activates the selecting device (15) to initiate corrections. 10. A steering system according to claim 6, characterised in that the dead band sensor (24) is mechanically coupled with a control valve (23) of the sensor arrangement. 350, WO; WO96/037681, WO; WO97/006346, WO; WO97/011306, WO; WO97/017524, WO; WO97/017526, WO; WO97/017527, WO; WO97/020130, WO; WO97/021901, WO; WO98/000626, WO; WO98/007957, WO; WO98/009053, WO; WO98/022690, WO; WO98/026152, WO; WO98/042947, WO; WO98/049423, WO; WO99/002818, WO; WO99/004135, WO; WO99/006670, WO; WO99/008827, WO; WO99/008828, WO; WO99/018328, WO; WO99/023354, WO; WO99/025524, WO; WO99/025951, WO; WO99/035368, WO; WO99/043923, WO; WO00/001926, WO; WO00/004271, WO; WO00/008301, WO; 0026500, WO; 0026501, WO; 0026502, WO; 0031375, WO; 0037767, WO; 0037768, WO; 0037771, WO; 0037772, WO; 0039432, WO; 0046484, WO; 0050727, WO; 0050732, WO; 0050733, WO; 0077431, WO; WO01/04535, WO; WO01/18354, WO; WO01/83943, WO; WO02/25059, WO; WO02/095181, WO; WO02/053867, WO; WO02/053867, WO; WO02/075107, WO; WO02/077411, WO; WO02/081863, WO; WO02/081864, WO; WO02/086285, WO; WO02/086286, WO; WO02/090713, WO; WO02/103150, WO; WO03/012255, WO; WO03/023178, WO; WO03/023179, WO; WO03/029607, WO; WO03/029608, WO; WO03/042486, WO; WO03/042487, WO