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| Number | Title | Issue Date |
| 6932128 | Apparatus and method for using a lightweight portable air/gas power supply A lightweight carbon fiber air/gas supply vessel storing high pressure air/gas. The air/gas supply vessel output is controlled by an adjustable pressure reduction valve which varies output pressure from very high to low pressure levels. An alternative multi-valve sy... | 08/23/2005 |
| 6135334 | Backpack attachment device The present invention relates to a device for increasing the storage capability of a pack. The device comprises a frame, a plurality of adjustable straps connected to the frame for holding a plurality of articles, such as bedrolls, blankets, sleeping bags... | 10/24/2000 |
| 6047668 | Backpack type power working machine A backpack type power working machine includes a movable stopper for restricting the turning angle of an internal combustion engine unit which is supported on a backpack frame so that it turns about a longitudinal axis. As a result, the turning angle rest... | 04/11/2000 |
| 5904282 | External frame backpack harness An external frame backpack (10) includes a frame (14), a hip belt (32), two flexible stays (50, 52), a back panel (38), and a lower panel (40). The frame is external and substantially rigid. It includes upper, middle, and lower frame members (22, 24, 26) ... | 05/18/1999 |
| 5875946 | Portage system for light watercraft A portage system for supporting light watercraft such as a canoe or kayak includes a frame having opposed first and second upright arms, a plurality of cross-struts interconnecting the arms, a pair of shoulder straps secured to a cross strut and a hip bel... | 03/02/1999 |
| 5762243 | Backpack assembly A backpack frame is molded integrally from composite fiber and resin material to provide a light yet strong frame. The frame includes top and bottom members and a pair of side members. A pair of vertical ribs extend between the top and bottom members, and... | 06/09/1998 |
| 5133300 | Backpack type operating unit Disclosed is a backpack type operating unit, which includes a backpack frame having a front portion and a left lateral side portion, an operating device and a motive power source for driving the operating device. The motive power source and the operating ... | 07/28/1992 |
| 4356942 | Internal frame rucksack The invention provides an internal frame rucksack in which the frame comprises at least two longitudinal frame members of substantially rigid material located in spaced-apart relationship within the rear wall of the sack, the frame members extending subst... | 11/02/1982 |
| 4145028 | Portable power winch assembly A support frame equipped with shoulder straps is provided for support from the back of a hunter and a combined motor and winch assembly including a rotary winding member driven from the motor is supported from the frame. The motor and winch assembly proje... | 03/20/1979 |
| 4018370 | Back pack frame A plastic tubular pack frame is disclosed employing a unitary main frame member and uniquel y constructed transverse support members including a pair of tee connectors interconnected by a tubular cross member. In one embodiment, a transverse support membe... | 04/19/1977 |
| 4015759 | Backpack frame having shoulder and hip supports with flexible connection to hip support The frame to which a backpack is fastened is formed of tubing bent in hourglass shape in rear elevation and two inward offsets in side elevation. A horizontal rigidifying cross bar extends through about the middle of the top part of the hourglass and is a... | 04/05/1977 |
