Portable hoist

Claim 2

Apparatus for transporting an object between different locations comprising a movable base having an extension portion thereof adapted to rest on an adjacent weight bearing surface; a vertical pole rotatably supported on said base; means attached to said pole for holding said object adapted to horizontally and vertically translate said object with respect to said pole; and an extendible member attached to said base adapted to extend in a predetermined direction from said pole to fixedly rest on said adjacent weight bearing surface, said object being stably supported between said base extension portion and said extended member while being moved between said base and said adjacent weight bearing surface.

Claim 3

A hoist comprising a movable base including an extension portion adapted to rest on a weight bearing surface offset from said base; a pole; means for rotatably mounting said pole on said base; means for holding an object; means for horizontally translating said holding means with respect to said pole; means connecting said horizontal translating means to said pole for vertically translating said object with respect to said pole; an extendible stabilizing member attached to said pole mounting means normally assuming a folded position over said base and adapted to extend in a predetermined direction from said base to rest on said offset weight bearing surface, said object being stably supported between said base extension portion and said extended stabilizing member while said object is being moved between said base and said weight bearing surface.

Claim 4

A hoist comprising a movable base including an extension portion adapted to rest on a weight bearing surface offset from said base; a pole; means for rotatably mounting said pole on said base; means for holding an object; means for horizontally translating said holding means with respect to said pole; means connecting said horizontal translating means to said pole for vertically translating said object with respect to said pole; an extendible stabilizing member attached to said pole mounting means normally assuming a folded position over said base and adapted to extend in a predetermined direction from said base to rest on said offset weight bearing surface, said object being stably supported between said base extension portion and said extended stabilizing member while said object is being moved between said base and said weight bearing surface.

Claim 5

A hoist according to claim 2 wherein said pole mounting means comprises a bearing housing fixedly attached to said base into which said pole is inserted, said bearing housing including an aperture through which a portion of said retracted stabilizing member protrudes, the portion of said pole inserted into said housing including a section having a cutout through which said portion of said bolded stabilizing member protrudes, said cutout section beind shaped and dimensioned to block rotation of said pole when said stabilizing member is retracted.

Claim 6

A hoist according to claim 3 wherein said movable base comprises a truncated rectangular shaped member having said bearing houSing located at a first corner and said extension portion located at a second corner; a plurality of swivel casters fixedly attached to the lower surface of said base for moving said base in any direction, the side of said base between said first and second corners being juxtaposed to said offset weight bearing surface while said object is being moved between said base and said offset weight bearing surface.

Claim 7

A hoist comprising a movable base having at least three corners, including a first extension portion located at said first corner; a second extension portion located at said second corner, each of said first and second extension portions being adapted to rest on a weight bearing surface adjacent to said base; a vertically positioned pole; means for rotatably mounting said pole on said base at said third corner; object holding means; horizontal translating means connecting said object holding means to said horizontal translating means; vertical translating means connecting said horizontal translating means to said pole; a first stabilizing member attached to said pole mounting means at said third corner normally folded against said pole mounting means and adapted to extend outwardly in a first direction from said base to rest on said adjacent weight bearing surface whereby said object is stably supportable between the first base extension portion and the extended first stabilizing member; and a second stabilizing member attached to said pole mounting means at said third corner normally folded against said pole mounting means and adapted to extend outwardly in a second direction from said base to rest on said adjacent weight bearing surface whereby said object is stably supportable between said second base extension portion and said extended second stabilizing member.

Claim 8

A hoist comprising a movable base having at least three corners, including a first extension portion located at said first corner; a second extension portion located at said second corner, each of said first and second extension portions being adapted to rest on a weight bearing surface adjacent to said base; a vertically positioned pole; means for rotatably mounting said pole on said base at said third corner; object holding means; horizontal translating means connecting said object holding means to said horizontal translating means; vertical translating means connecting said horizontal translating means to said pole; a first stabilizing member attached to said pole mounting means at said third corner normally folded against said pole mounting means and adapted to extend outwardly in a first direction from said base to rest on said adjacent weight bearing surface whereby said object is stably supportable between the first base extension portion and the extended first stabilizing member; and a second stabilizing member attached to said pole mounting means at said third corner normally folded against said pole mounting means and adapted to extend outwardly in a second direction from said base to rest on said adjacent weight bearing surface whereby said object is stably supportable between said second base extension portion and said extended second stabilizing member.

Claim 9

A hoist according to claim 5 wherein said pole mounting means comprises a bearing housing into which a portion of said pole is inserted, said bearing housing having a first aperture through which a portion of said folded first stabilizing member protrudes and a second aperture through which a portion of said second stabilizing member protrudes, the portion of said pole inserted into said housing having a cutout section through which the portion of said folded first and second stabilizing members protrude, said cutout section being shaped and dimensioned to block rotation of said pole in the direction of the folded stabilizing member.

Claim 10

A hoist according to claim 6 wherein said movable base comprises a truncated rectangular member, the side defined by said first and third corners of said base being juxtaposed to said weight bearing surface when said object is being moved between said first extension portion and said extended first stabilizing member, the side defined by said second and third corners being juxtaposed to said weight bearing surface when said object is being moved between said second extension portion and said second stabilizing member.

Claim 11

A hoist according to claim 7 wherein said object holding means comprises a pair of tongs, said means for connecting said horizontal translating means to said object holding means comprises a ball joint fixedly attached to said horizontal translating means and adapted to permit rotation of said tong pair.

Claim 12

A portable battery hoist comprising a movable base, said base including an extension portion adapted to rest on a battery rack shelf offset from said base; a bearing housing fixedly mounted on said base; a rotatable pole vertically insertable into said base housing; a horizontally translatable member; tong-holding means connected to said horizontal translating member for holding said battery; means for raising and lowering said horizontal member with respect to said pole; and a stabilizing member fixedly attached to said bearing housing and adapted to assume a retracted position against said bearing housing and to assume an extended position fixedly resting on said battery rack shelf, said held battery being stably supported between saiD base extension portion and said stabilizing member in its extended position while said held battery is offset from said base.

Claim 13

A portable battery hoist comprising a movable base, said base including an extension portion adapted to rest on a battery rack shelf offset from said base; a bearing housing fixedly mounted on said base; a rotatable pole vertically insertable into said base housing; a horizontally translatable member; tong-holding means connected to said horizontal translating member for holding said battery; means for raising and lowering said horizontal member with respect to said pole; and a stabilizing member fixedly attached to said bearing housing and adapted to assume a retracted position against said bearing housing and to assume an extended position fixedly resting on said battery rack shelf, said held battery being stably supported between saiD base extension portion and said stabilizing member in its extended position while said held battery is offset from said base.

Claim 14

A portable battery hoist comprising a movable truncated rectangular base having a first extension portion at a first corner thereof and a second extension portion at a second corner thereof diagonally opposite said first corner, each extension portion being adapted to rest on a juxtaposed battery shelf; a bearing housing fixedly attached to said base at a third corner thereof; a rotatable pole vertically inserted into said housing; a pair of battery holding tongs; a horizontal translating member connected to said tong pair; a vertical translating member connecting said horizontal translating member to said pole; a first extendible stabilizing member attached to said housing normally folded against said housing and outwardly extendible from said housing in a first direction to rest on a juxtaposed battery shelf whereby said held battery is stably supported over said juxtaposed shelf between said first extension portion and said extended first stabilizing member; and a second extendible stabilizing member attached to said housing normally folded against said housing and outwardly extendible from said housing in a second direction to rest on a juxtaposed battery shelf whereby said held battery is stably supported over said juxtaposed battery shelf between said second extension portion and said second extended stabilizing member.

Claim 15

A portable battery hoist comprising a movable truncated rectangular base having a first extension portion at a first corner thereof and a second extension portion at a second corner thereof diagonally opposite said first corner, each extension portion being adapted to rest on a juxtaposed battery shelf; a bearing housing fixedly attached to said base at a third corner thereof; a rotatable pole vertically inserted into said housing; a pair of battery holding tongs; a horizontal translating member connected to said tong pair; a vertical translating member connecting said horizontal translating member to said pole; a first extendible stabilizing member attached to said housing normally folded against said housing and outwardly extendible from said housing in a first direction to rest on a juxtaposed battery shelf whereby said held battery is stably supported over said juxtaposed shelf between said first extension portion and said extended first stabilizing member; and a second extendible stabilizing member attached to said housing normally folded against said housing and outwardly extendible from said housing in a second direction to rest on a juxtaposed battery shelf whereby said held battery is stably supported over said juxtaposed battery shelf between said second extension portion and said second extended stabilizing member.

Claim 16

A portable battery hoist according to claim 10 wherein said housing comprises a first aperture for receiving a portion of said folded first stabilizing member and a second aperture for receiving a portion of said folded second stabilizing member, and said pole comprises a cutout section inserted in said housing into which cutout section said folded first and second stabilizing members protrude, said cutout section being shaped and dimensioned to block rotation of said pole in the direction of the folded stabilizing member.

Claim 17

A portable battery hoist according to claim 11 wherein said tong pair is connected to said horizontal translating member by a ball joint fixedly attached to said horizontal translating member, said tong pair being rotatably attached to said ball joint whereby said battery may be rotated about its center.

Claim 18

A portable battery hoist according to claim 12 wherein said horizontal translating member comprises a fixed section; a slidable section bearing on said fixed section; and means for moving said slidable section inwardly toward and outwardly away from said pole.

Claim 19

A portable battery hoist according to claim 13 wherein said vertical translating member comprises a worm gear; a circular gear engaging said worm gear; a winch fixedly attached to said circular gear; a cable attached to said winch and to said horizontal member fixed section, said cable running along said pole around a sheave rotatably mounted on the uppermost extremity of said pole; means for turning said worm gear whereby the winding of the cable on the winch raises said horizontal translating member and the unwinding of said cable from said winch lowers said horizontal translating member.

Claim 20

A portable battery hoist according to claim 13 wherein said vertical translating member comprises a pinion rotatably attached to said horizontal translating member fixed section; a rack fixedly attached along the length of said pole engaging said pinion; and means for turning said pinion whereby said horizontal translating member is raised and lowered.