Abstract: A mailbox delivery indicator for a standard rural mailbox signals to a resident when the mail carrier has been to his mailbox. When the mailbox door is opened, an actuator arm extends and pushes an active signaling element, causing it to fall by gravity to a hanging position below the mailbox. Once the active signaling element has fallen, a passive signaling element is exposed for remote observation. The active signaling element in the hanging position together with exposure of the passive signaling element indicate to the resident that the mail carrier has been by his mailbox. At this time, the resident can check his mailbox without wasting a trip to the mailbox. After the resident checks his mail, he closes the door and resets the active signaling element to the covering position.

Abstract: A method for removing furfural-derived coke from metallic surfaces by heating in an oxygen-containing gas, such as air, for a time and at a temperature sufficient to change the crush strength of the furfural coke to a point which will permit easy removal of such coke, without such an evolution of heat that the metallurgical properties of said metal surfaces are undesirably changed.

Abstract: A method for removing furfural-derived coke from metallic surfaces by heating in an oxygen-containing gas, such as air, for a time and at a temperature sufficient to change the crush strength of the furfural coke to a point which will permit easy removal of such coke, without such an evolution of heat that the metallurgical properties of said metal surfaces are undesirably changed.

Abstract: An awning support assembly for an awning apparatus (20) mounted on a vehicle (24) includes a clamp assembly (60) attachable at any point along a support tube (30) of the awning apparatus. Clamp assembly (60) has two clamp members (62,64), each having hook-shaped ends (66,68) engageable within grooves or openings in support tube (30). The opposite adjacent ends of clamp members (62,64) when drawn together pull clamp assembly (60) against support tube (24). A telescoping compression member (34) is rotatably attached to clamp (60) to push outwardly on support tube (30). A lever (90) is manually operated to extend compression member (36) to impart a desired load on support tube (30). A telescoping leg support (38) is rotatably connected to clamp assembly (60) and is locked in desired extended position by movable rack (136) engaging fixed rack (134).

Abstract: A rodeo training device for training cowboys to ride rodeo animals such as bulls and wild horses. The device includes a rider support and mechanism to drive the rider support to simulate the bucking and/or spinning motions of a rodeo animal attempting to unseat its rider.