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US 6,412,649 B1Granted
Spreader bar apparatus
OwnerJon E. Khachaturianinventor
Life of this patent
Estimating the term…
Abstract
A spreader bar includes an elongated bar member having end portions that support a flexible lifting member that is supported below the bar. The flexible lifting member is preferably comprised of a plurality of link sections that are pinned together, load carrying links depending from the flexible member, preferably at pinned connections that join the additional links.
Claims25
A spreader bar apparatus, comprising:
- a) a bar member having a bar length and first and second end portions;
- b) the first end portion having a first bar end with a lifting portion;
- c) the second end portion having a second bar end with a lifting portion;
- d) a flexible member having end portions and a central portion and a length that approaches the bar length, and being supported by the bar member at a position next to the bar lifting portions, the flexible member being spaced farther from the bar at its central portion than at its end portions;
- e) attachments at spaced apart intervals along the flexible member;
- f) a lifting line that is attachable to the flexible member at a selected one of the attachments on the flexible member;
- and
- g) wherein the flexible member is comprised of a plurality of separate elements that are connected together at locations next to said attachments wherein the flexible member is comprised of a plurality of links that are pinned together.
5 more elements
A spreader bar apparatus, comprising:
- a) a bar member having first and second end portions;
- b) the first end portion having a first bar end with a lifting portion;
- c) the second end portion having a second bar end with a lifting portion;
- d) a flexible member supported by the bar member at the lifting portions;
- e) attachments at spaced apart intervals along the flexible member;
- f) a lifting line that is attachable to the flexible member at a selected one of the attachments on the flexible member;
- g) wherein the flexible member is comprised of a plurality of separate elements that are connected together at locations next to said attachments;
- and
- h) wherein the flexible member is comprised of a plurality of plate Members, each having end portions, an end portion of one plate member being connected to an end portion of another plate member.
6 more elements
A spreader bar apparatus, comprising:
- a) a bar member having first and second end portions;
- b) the first end portion having a first bar end with a lifting portion;
- c) the second end portion having a second bar end with a lifting portion;
- d) a flexible member supported by the bar member at the lifting portions;
- e) attachments at spaced apart intervals along the flexible member;
- f) a lifting line that is attachable to the flexible member at a selected one of the attachments on the flexible member;
- and
- g) wherein the flexible member is comprised of a plurality of separate elements that are connected together at locations next to said attachments;
- h) wherein the flexible member is comprised of a plurality of plate members including a first plurality of laterally extending plate members and a second plurality of vertically extending plate members.
6 more elements
A spreader bar apparatus, comprising:
- a) a bar member having first and second end portions;
- b) the first end portion having a first bar end with a lifting portion;
- c) the second end portion having a second bar end with a lifting portion;
- d) a flexible member supported by the bar member only at the bar end portions;
- e) sling attachments at spaced apart intervals along the flexible member;
- f) a plurality of slings that are attachable to the flexible member at a selected one of the sling attachments on the flexible member;
- and
- g) wherein the flexible member is comprised of a plurality of separate elements that are connected together wherein the flexible member is comprised of a plurality of links that are pinned together.
5 more elements
A spreader bar apparatus, comprising:
- a) a bar member having first and second end portions;
- b) the first end portion having a first bar end with a lifting portion;
- c) the second end portion having a second bar end with a lifting portion;
- d) a flexible member supported by the bar member at the bar ends;
- e) sling attachments at spaced apart intervals along the flexible member;
- f) a plurality of slings that are attachable to the flexible member at a selected one of the sling attachments on the flexible member;
- g) wherein the flexible member is comprised of a plurality of separate elements that are connected together;
- and
- h) wherein the flexible member is comprised of a plurality of plate members, each having end portions, an end portion of one plate member being connected to an end portion of another plate member.
6 more elements
A spreader bar apparatus, comprising:
- a) a bar member having first and second end portions;
- b) the first end portion having a first bar end with a lifting portion;
- c) the second end portion having a second bar end with a lifting portion;
- d) a flexible member supported by the bar member at the bar ends;
- e) sling attachments at spaced apart intervals along the flexible member;
- f) a plurality of slings that are attachable to the flexible member at a selected one of the sling attachments on the flexible member;
- g) wherein the flexible member is comprised of a plurality of separate elements that are connected together;
- and
- h) wherein the flexible member is comprised of a plurality of plate members including a first plurality of laterally extending plate members and a second plurality of vertically extending link members.
6 more elements
A spreader bar apparatus, comprising:
- a) a pair of lifting cranes;
- b) a bar member having first and second end portions;
- c) the first end portion having a first bar end removably attached to a first of the cranes;
- d) the second end portion having a second bar end removably attached to a second of the cranes;
- e) a flexible member supported by the bar member at the lifting portions, wherein the flexible member is comprised of a plurality of separate plates that are connected together end-to-end, a plate being connected to the plate next to it at a pinned connection;
- f) each pinned connection supporting a depending plate;
- g) a plurality of lifting lines that are attachable to selected depending plates.
4 more elements
A spreader bar apparatus, comprising:
- a) a pair of lifting cranes;,
- b) a bar member having first and second lifting end of portions;
- c) the first end portion having a first bar end removably attached to a first of the cranes;
- d) the second end portion having a second bar end removably attached to a second of the cranes;
- e) a flexible member having end portions and a central portion and being supported by the bar member at a position next to the lifting portions, the flexible member being spaced farther from the bar at its central portion than at its end portions;
- f) attachments at spaced apart intervals along the flexible member;
- g) a lifting line that is attachable to the flexible member at a selected one of the attachments on the flexible member;
- and
- h) wherein the flexible member is comprised of a plurality of separate elements that are connected together at locations next to said attachments wherein the flexible member is comprised of a plurality of plate members defining said elements including a first plurality of laterally extending plate members and a second plurality of vertically extending plate members.
6 more elements
Dependencies are inferred from the claim text.