Portable carrier

Claim 2

A portable carrier which comprises an upwardly extending back support member, a handle mounted on said back support member, adjusting means for extending and contracting said handle on said back support member, means for locking said handle in selected positions along said back support member, a bottom support member connected to said back support member, means for maintaining said bottom support member in a lowered operative position extending outwardly from said back support member, a first pivotal means pivotally mounting the inner end of said bottom support member in the lower end of said back support member, for pivotal movement of said bottom support member upwardly into inoperative position against said back support member, a front support member connected to the opposite outer end of said bottom support member and extending upwardly therefrom in the operative position of said front support member, means for maintaining said front support member in said upwardly extending position, and a second pivot means pivotally mounting said front support member on said bottom support member, for pivotal movement into contact with said bottom support member, whereby said front support member is foldable into engagement with said bottom support member, and said bottom support member together with said engaged front support member, is foldable into engagement with said back support member, with said back support member, said bottom support member and said front support member nested together into a substantially single plane.

Claim 3

A portable carrier as defined in claim 1, wherein aid back support member comprises a plurality of longitudinally extending arms, said handle comprising a plurality of side members slidably engageable with said arms, said adjusting means for said handle comprising a spring biased detent means for locking said side members in selected positions along said longitudinally extending arms of said back support member.

Claim 4

A portable carrier as defined in claim 1, said bottom support member comprising a pair of side members and an outwardly extending end member connected to said side members, an axle, wheels mounted on axle, said first pivot means mounted on said axle, said front support member being a substantially U-shaped member comprising an end member connected to a pair of side members, said second pivot means including shortened end portions connected to the outer ends of said last mentioned side members, and means mounting said last mentioned end portions for pivotal motion on said opposite outer end of said bottom support member.

Claim 5

A portable carrier as defined in claim 2, said bottom support member comprising a pair of side members and an outwardly extending end member connected to said side members, an axle, wheels mounted on said axle, said first pivot means mounted on said axle, said front support member being a substantially U-shaped member comprising an end member connected to a pair of side members, said second pivot means including shortened end portions connected to the outer ends of said last mentioned side members, and means mounting said last mentioned end portions for pivotal motion on said opposite outer end of said bottom support member.

Claim 6

A portable carrier as defined in claim 1, said back support member comprising a pair of longitudinally extending arms, said handle comprising a pair of side members slidably engageable with said arms, said back support member including a plurality of spaced laterally extending cross members, one of said cross members disposed adjacent the lower end of said back support member, said bottom support member comprising a pair of side members and an outwardly extending end member, an axle mounted adjacent the lower end of said back support member, wheels moUnted on said axle, said means for mounting said bottom support member in a lowered operative position comprising inner end portions on the side members of said bottom support member, said inner end portions contacting said one of said cross members adjacent the lower end of said back support member.

Claim 7

A portable carrier as defined in claim 5, said means for mounting said front support member in said upwardly extending operative position comprising the lower outer end portions of said side members of said front support member contacting the adjacent outwardly extending end member of said bottom support member.

Claim 8

A portable carrier as defined in claim 1, said back support member comprising a pair of spaced longitudinally extending arms, said handle comprising a laterally extending handle portion and a pair of side members slidably engageable with said arms, said adjusting means for said handle comprising a spring biased pin mounted on one of said side members of said handle, a plurality of apertures positioned longitudinally along one of said arms of said back support member in slidable engagement with said last mentioned pin carrying side member of said handle, said pin being urged into engagement with said respective apertures at said predetermined positions of said apertures along said one of said arms.

Claim 9

A portable carrier as defined in claim 6, said adjusting means for said handle comprising a spring biased pin mounted on one of said side members of said handle, a plurality of apertures positioned longitudinally along one of said arms of said back support member in slidable engagement with said last mentioned pin carrying side member of said handle, said pin being urged into engagement with said respective apertures at said predetermined positions of said apertures along said one of said arms.

Claim 10

A portable carrier as defined in claim 1, including a downwardly extending support bar connected to the outwardly extending end of said bottom support member, a rotatable ball support positioned in the lower end of said support bar, and including means for maintaining the folded assembly of said front support member and bottom support member into folded inoperative engagement with said back support member.

Claim 11

A portable carrier as defined in claim 1, said back support member comprising a pair of longitudinally extending arms of substantially square tubular cross section, a plurality of laterally extending cross strips connected to said arms, a longitudinally extending central strip connected to said cross members, one of said cross strips being disposed adjacent the lower end of said back support member, said handle comprising a laterally extending handle portion and a pair of integrally connected downwardly extending side members, said side members being of substantially tubular cross section and mating with the tubular arms of said back support member for slidable engagement therein, said adjusting means for said handle comprising a spring biased pin mounted on one of said side members of said handle, a plurality of apertures positioned longitudinally along one of said arms of said back support member in slidable engagement with said last mentioned pin carrying side member of said handle, said pin being urged into engagement with said apertures at said respective positions of said apertures along said one of said arms, said bottom support members comprising a pair of side members, an outwardly extending end member connected to said last mentioned side members, an axle, wheels mounted on said axle, a sleeve connected across the inwardly extending ends of said side members of said bottom support member, said sleeve receiving said axle, a longitudinally extending central strip connected across the outwardly extending end member of said bottom support member and said sleeve, the opposite side member of said bottom support member being spaced from each other a distance such that said side members are disposed within said closely adjacent to but out of contAct with the lower ends of said arms of said back support member, said last mentioned side members having inner end portions making contact with said lower cross strip of said back support member when said bottom support member is in the lowered outwardly extending operative position, said first pivot means comprising said sleeve mounted on said axle, said front support member being a substantially U-shaped member integrally connected to a pair of side members, said last mentioned side members having inwardly extending short end portions, a pair of sleeves mounted on the interior surface of said outwardly extending end member of said bottom support member, said second pivot means comprising said last mentioned end portions of said front support member positioned for pivotal movement in said last mentioned sleeves, including a downwardly extending support bar connected to the outwardly extending end of said bottom support member, a rotatable ball support positioned in the lower end of said support bar, and including means for maintaining the folded assembly of said front support member and bottom support member into folded inoperative engagement with said back support member, said last mentioned means comprising means associated with said side members of said bottom support member and the adjacent arms of said back support member.