Extensible frame backpack

Details Extensible frame backpack Extensible frame backpack

1990-02-07

1994-03-08

Barrett, Glenn J.

Package and article carriers

Carried by animate bearer

Article held by receiver

224261, A45F 308

Patent

active

052920437

ABSTRACT:
A single backpack is provided for allowing a simple conversion between an extended form for long duration hikes and a collapsed form for short technical climbs on ice and rock. The backpack comprises a frame that includes a pair of aluminum bars fastened to a frame surface of the pack. The main frame bars extend partially up the frame surface of the pack shell. The remaining distance from the top of the main frame bars and the top of the shell is spanned by extension bars which are held and fastened against the main frame bars. The main frame bars, with the addition of the extension bars, make the backpack a full sized large capacity hiking pack capable of bearing loads of 70 pounds or more. The backpack may be converted to a climbing pack by removing the extension bars from their fastened position and subsequently the shell collapses to the level of the lower main frame. The extension bars are easily unfastened and may be carried within the pack or stored with other non-essential pack gear at the base of the climb.

REFERENCES:
patent: 227166 (1880-05-01), Hoffman
patent: 3233803 (1966-02-01), Gray
patent: 3912138 (1975-10-01), Pava
patent: 3946916 (1976-03-01), Lawrence
patent: 4015759 (1977-04-01), Dreissigacker
patent: 4018370 (1977-04-01), Wood
patent: 4356942 (1982-11-01), Hayes
patent: 4433802 (1984-02-01), Woolf
patent: 4593841 (1986-06-01), Lange

Affiliated with

Also associated with

Rating

Extensible frame backpack does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Extensible frame backpack, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Extensible frame backpack will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-149063