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US 5,044,645 AGranted
Dolly for heavy objects
AssigneeCar-O-Liner Company
InventorBjorn Eltvik
Life of this patent
Estimating the term…
Abstract
A dolly for moving heavy objects and alternatively for holding heavy objects in a static position. The dolly has a U-shaped frame with rollers for supporting and moving a heavy object. In an alternate position, the frame blocks the movement of the heavy object.
Claims14
A dolly for moving a heavy object along a support surface and holding a heavy object in a static position comprising:
- (a) a main frame including a telescoping member, means for releasably locking said telescoping member to a predetermined length, and at least two cross members transverse to said telescoping member and fixedly attached on one side of said telescoping member, wherein said frame has a top side, a bottom side and a generally U-shaped opening, said telescoping member varies the distance between said cross members and the length of said opening;
- (b) wheels carried by said frame for rolling said frame on the support surface, said wheels being carried by said frame such that their peripheries are positioned in part below the plane of said bottom side of said frame for engagement of said wheels with the support surface when said frame is in an upright position and completely below the plane of said top side of said frame for disengagement from the support surface when said frame is in an upside-down position,
- (c) a first pair of abutment means carried by said cross members in generally opposed relation, disposed wholly above the support surface when said frame is in its upright position, and constructed and arranged to engage and support a heavy round object wholly above the support surface when said frame is in its upright position,
- (d) a second pair of abutment means carried by said cross members in opposed relation, disposed below the plane of the top side of the frame and above the support surface when said frame is in its upright position, and constructed and arranged to engage a heavy round object when said frame is in its upside-down position, and
- (e) abutment surfaces carried by said cross members, lying in generally the same plane and engagable with the support surface when said frame is in its upside-down position to thereby restrain the heavy round object in a substantially static position and none of the components of said dolly projecting beyond said plane of said abutment surfaces carried by said cross members.
2 more elements
A dolly for moving a heavy object along a support surface and holding a heavy object in a static position comprising:
- (a) a main frame including a telescoping member, means for releasably locking said telescoping member to a predetermined length, and at least two cross members transverse to said telescoping member and fixedly attached on one side of said telescoping member, wherein said frame has a top side, a bottom side and a generally U-shaped opening, said telescoping member varies the distance between said cross members and the length of said opening;
- (b) wheels carried by said frame for rolling said frame on the support surface, said wheels being carried by said frame such that their peripheries are positioned in part below the plane of said bottom side of said frame for engagement of said wheels with the support surface when said frame is in an upright position and completely below the plane of said top side of said frame for disengagement from the support surface when said frame is in an upside-down position;
- (c) a first pair of abutment means carried by said cross members in generally opposed relation, disposed wholly above the support surface when said frame is in its upright position, and constructed and arranged to engage and support a heavy round object wholly above the support surface when said frame is in its upright position,
- (d) a second pair of abutment means carried by said cross members in opposed relation, disposed below the plane of the top side of the frame and above the support surface when said frame is in its upright position and constructed and arranged to engage a heavy round object to restrain it in a substantially static position when said frame is in its upside-down position and engaging the support surface, and
- (e) said cross members comprise tubes, said first pair of abutment means comprises a first pair of edges of said tubes, and said second pair of albutment means comprises a second pair of edges of said tubes spaced from said first pair of edges thereof.
2 more elements
Dependencies are inferred from the claim text.