Patent US4235355A successfully refreshed from Google Patents.
US4235355A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for carrying sheet or panel material
Assignee: Individual
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Filing: 1978-10-27
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Granted: 1980-11-25
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Expires: 1998-10-27
Abstract
Abstract A device for carrying large sheets of material (such as plywood or gypsum wallboard) both efficiently and without damage. The device includes a pair of brackets for engaging the two lower corners of a sheet of material and a flexible line connecting the pair of brackets. A person wishing to lift and carry the material grasps the flexible line and exerts an upward force thereupon to lift the material off the ground.
Inventors
- 👤 David G. Henry
- 👤 Karen A. Paulsen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 15:31
CPC Classifications
B; B65; B65G; B65G7/00; B65G7/12
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
201 words
A device for carrying sheet material comprising: a pair of bracket means for engaging the two lower corners of a sheet of material, each bracket means including a flat, continuous, elongated strip of material formed into a generally U-like shape having a base portion, two depending and spaced apart leg portions, and two seating portions defining a pair of seating surfaces, said two seating portions being located between said base portion and a respective one of said leg portions, said base portion extending between and adjoining said two seating portions, said base portion being bent out of an imaginary plane defined by said leg portions so that said base portion is located on one side of said sheet of material and said leg portions are located on the other side of said sheet of material when said bracket means engages said corner; and flexible line means coupling said leg portions of a first bracket means to said leg portions of a second bracket means; whereby when said first bracket means and said second bracket means engage respective ones of said corners, a person may lift said sheet of material by grasping said flexible line means and exerting an upward force thereupon.
Claim 2
Independent Claim
201 words
A device for carrying sheet material comprising: a pair of bracket means for engaging the two lower corners of a sheet of material, each bracket means including a flat, continuous, elongated strip of material formed into a generally U-like shape having a base portion, two depending and spaced apart leg portions, and two seating portions defining a pair of seating surfaces, said two seating portions being located between said base portion and a respective one of said leg portions, said base portion extending between and adjoining said two seating portions, said base portion being bent out of an imaginary plane defined by said leg portions so that said base portion is located on one side of said sheet of material and said leg portions are located on the other side of said sheet of material when said bracket means engages said corner; and flexible line means coupling said leg portions of a first bracket means to said leg portions of a second bracket means; whereby when said first bracket means and said second bracket means engage respective ones of said corners, a person may lift said sheet of material by grasping said flexible line means and exerting an upward force thereupon.
Claim 3
Dependent Claim
21 words
A device as recited in claim 1 wherein said pair of seating surfaces are at substantially right angles to one another.
Claim 4
Dependent Claim
58 words
A device as recited in claim 2 wherein the free end section of each of said leg portions is bent out of said imaginary plane in a direction opposing the direction that said base portion is bent out of said imaginary plane, and said flexible line means is attached through holes formed through said bent free end sections.
Claim 5
Dependent Claim
32 words
A device as recited in claim 1 further comprising a handle means attached to said flexible line means to facilitate the grasping of said line means by the hand of a user.
Claim 6
Independent Claim
175 words
A device for carrying sheet material comprising a pair of bracket means for engaging two corners of a sheet of material, each bracket means including: a flat, continuous, elongated strip of material formed into a generally U-like shape having a base portion, two depending and spaced apart leg portions, and two seating portions defining a pair of seating surfaces, said two seating portions being located between said base portion and a respective one of said leg portions said base portion extending between and adjoining said two seating portions, said base portion being bent out of an imaginary plane defined be said leg portions so that said base portion is located on one side of said sheet of material and said leg portions are located on the other side of said sheet of material when said pair of bracket means engage said corners of said sheet of material, means extending between the pair of bracket means coupling the leg portions of the pair of bracket means to permit a person to lift the sheet of material.
Claim 7
Independent Claim
175 words
A device for carrying sheet material comprising a pair of bracket means for engaging two corners of a sheet of material, each bracket means including: a flat, continuous, elongated strip of material formed into a generally U-like shape having a base portion, two depending and spaced apart leg portions, and two seating portions defining a pair of seating surfaces, said two seating portions being located between said base portion and a respective one of said leg portions said base portion extending between and adjoining said two seating portions, said base portion being bent out of an imaginary plane defined be said leg portions so that said base portion is located on one side of said sheet of material and said leg portions are located on the other side of said sheet of material when said pair of bracket means engage said corners of said sheet of material, means extending between the pair of bracket means coupling the leg portions of the pair of bracket means to permit a person to lift the sheet of material.
Claim 8
Dependent Claim
22 words
A corner bracket as recited in claim 5 wherein said pair of seating surfaces are at substantially right angles to one another.
Claim 9
Dependent Claim
56 words
A corner bracket as recited in claim 6 wherein the free end sections of each of said leg portions is bent out of said imaginary plane in a direction opposing the direction that said base portion is bent out of said imaginary plane, and are each provided with a hole formed through said free end section.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-11-25 | 1984-05-26 | 1984-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-11-25 | 1988-05-26 | 1988-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-11-25 | 1992-05-26 | 1992-11-25 | $7700.00 | Window Closed / Lapsed |