Abstract: A backpack frame and support assembly includes a backpack frame together with first, second, and third poles and first, second, and third couplings that removably couple the poles to a backpack frame to form a tripod-like support configuration. The couplings hold the poles so that the poles angle away from the backpack frame advantageously for improved stability. In addition, the couplings hold the poles in a way enabling a user to remove the poles easily by lifting the backpack frame. The couplings may be part of the backpack frame, they may be attached to a backpack frame as original equipment, or they may be mounted as retrofit equipment on an existing prior art backpack frame. The poles in one embodiment slide together to form a walking staff or two trekking poles, and a separate hook attaches to the third pole to adapt it to use in mounting a bear bag over a tree limb.

Abstract: A backpack support apparatus includes first, second, and third poles and first, second, and third couplings that removably couple the poles to a backpack frame to form a tripod-like support configuration. The couplings hold the poles so that the poles angle away from the backpack frame advantageously for improved stability. In addition, the couplings hold the poles in a way enabling a user to remove the poles easily by lifting the backpack frame. The couplings may be part of the backpack frame, they may be attached to a backpack frame as original equipment, or they may be mounted as retrofit equipment on an existing backpack frame. The poles in one embodiment slide together to form a walking staff, and a separate hook attaches to the third pole to adapt it to use in mounting a bear bag over a tree limb.

Abstract: Improved rotating blowout preventer including a stationary housing, a bearing housing and a bearing means assembly and seal assembly for mounting an internally located, rotating sleeve for rotating, sealable movement within the bearing housing. The bearing housing and rotatable sleeve cooperate to provide a circumferential passageway and radial ports to direct outwardly of the bearing housing any fluid which leaks past the seal assembly. The structure of the seal and bearing mountings provide for replacement of the seal without contaminating the bearing.