US4240658A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Truss lifting hook and method for using same
Assignee: Individual
•
Filing: 1980-01-28
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Granted: 1980-12-23
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Expires: 2000-01-28
Abstract
Abstract An apparatus and method for lifting a truss. The apparatus includes a generally U-shaped hook having spaced apart opposite ends, an elongated shaft having a handle end and an opposite hook end connected to one end of said hook, and a rod substantially co-extensive with said shaft and longitudinally slidable therealong between a first position wherein the rod is substantially clear of the space between the opposite ends of the hook so that a truss beam may be received therein and a second position wherein the rod extends substantially across the space whereby withdrawal of the beam between the opposite ends of the hook is prevented. Because the rod is substantially co-extensive with the shaft, it may be manipulated adjacent the handle end of the shaft for movement of its opposite ends between the first and second positions. The elongated slot may have lateral extensions for receiving the projection to releaseably secure the rod in its first and second positions, respectively.
Inventors
- 👤 Stanley Britson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 01:34
CPC Classifications
B; B25; B25J; B25J1/00; B25J1/04
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
149 words
An apparatus for lifting a truss including a plurality of interconnected beams, said apparatus comprising, a generally U-shaped hook adapted to receive one of said truss beams therein, said hook including spaced apart opposite ends, an elongated shaft having a hook end and a handle end, said hook end being connected to one end of said hook, a rod connected to said shaft for longitudinal sliding movement therealong between a first position wherein said rod is substantially clear of the space between opposite ends of said hook so that a truss beam may be received therein and a second position wherein said rod extends substantially across said space whereby withdrawal of said beam between said opposite ends is prevented, said rod being substantially co-extensive with said shaft such that the rod may be manipulated adjacent the handle end of said shaft for movement between said first and second positions.
Claim 2
Independent Claim
149 words
An apparatus for lifting a truss including a plurality of interconnected beams, said apparatus comprising, a generally U-shaped hook adapted to receive one of said truss beams therein, said hook including spaced apart opposite ends, an elongated shaft having a hook end and a handle end, said hook end being connected to one end of said hook, a rod connected to said shaft for longitudinal sliding movement therealong between a first position wherein said rod is substantially clear of the space between opposite ends of said hook so that a truss beam may be received therein and a second position wherein said rod extends substantially across said space whereby withdrawal of said beam between said opposite ends is prevented, said rod being substantially co-extensive with said shaft such that the rod may be manipulated adjacent the handle end of said shaft for movement between said first and second positions.
Claim 3
Dependent Claim
21 words
The apparatus of claim 1 wherein said shaft is of tubular construction and said rod is slidably disposed within said shaft.
Claim 4
Dependent Claim
32 words
The apparatus of claim 2 further comprising handle means for longitudinally moving said rod within said shaft, said handle means being disposed externally of said shaft and adjacent the handle end thereof.
Claim 5
Dependent Claim
39 words
The apparatus of claim 3 wherein said shaft has an elongated slot adjacent the handle end thereof, and said handle means comprising a projection secured to said rod and extended outwardly through said slot for longitudinal sliding movement therein.
Claim 6
Dependent Claim
37 words
The apparatus of claim 4 wherein said elongated slot includes a lateral extension positioned for receiving said projection when said rod is in the second position therefor, thereby to releasably secure said rod in said second position.
Claim 7
Dependent Claim
37 words
The apparatus of claim 5 wherein said elongated slot includes a lateral extension positioned for receiving said projection when said rod is in the first position therefor, thereby to releasably secure said rod in said first position.
Claim 8
Dependent Claim
32 words
The apparatus of claim 4 wherein said handle means further comprises a tubular handle telescopically received onto said shaft, said tubular handle being secured to said projection for longitudinal sliding movement therewith.
Claim 9
Dependent Claim
27 words
The apparatus of claim 1 wherein the opposite end of said hook includes an opening which is adapted to receive said rod in the second position therefor.
Claim 10
Dependent Claim
19 words
The apparatus of claim 1 wherein said shaft is directed generally perpendicular to said one end of the hook.
Claim 11
Independent Claim
171 words
A method of lifting a truss including a plurality of interconnected beams, said method comprising, providing a generally U-shaped hook having spaced apart opposite ends, an elongated shaft having a handle end and a hook end connected to one end of said hook and a rod substantially co-extensive with said shaft and longitudinally slidable therealong, moving said rod to a first position wherein said rod is substantially clear of the space between opposite ends of said hook, positioning said hook to receive one of said truss beams therein, manipulating said rod adjacent the handle end of said shaft to longitudinally move said rod to a second position wherein said rod extends substantially across the space between opposite ends of said hook whereby withdrawal of said beam between said opposite ends is prevented, manipulating said shaft to raise said hook and the beam received therein to a desired position, returning said rod to the first position therefor, and moving said hook so that said beam is withdrawn between the opposite ends thereof.
Claim 12
Independent Claim
171 words
A method of lifting a truss including a plurality of interconnected beams, said method comprising, providing a generally U-shaped hook having spaced apart opposite ends, an elongated shaft having a handle end and a hook end connected to one end of said hook and a rod substantially co-extensive with said shaft and longitudinally slidable therealong, moving said rod to a first position wherein said rod is substantially clear of the space between opposite ends of said hook, positioning said hook to receive one of said truss beams therein, manipulating said rod adjacent the handle end of said shaft to longitudinally move said rod to a second position wherein said rod extends substantially across the space between opposite ends of said hook whereby withdrawal of said beam between said opposite ends is prevented, manipulating said shaft to raise said hook and the beam received therein to a desired position, returning said rod to the first position therefor, and moving said hook so that said beam is withdrawn between the opposite ends thereof.
Claim 13
Dependent Claim
57 words
The method of claim 10 wherein said rod is longitudinally slidable within said shaft, said shaft including an elongated slot adjacent the handle end thereof and said rod including a projection extended outwardly through said slot for longitudinal sliding movement therein, said steps of moving and manipulating said rod comprising longitudinally moving said projection within said slot.
Claim 14
Dependent Claim
42 words
The method of claim 11 further comprising providing a tubular handle telescopically received onto said shaft and secured to said projection, said steps of moving and manipulating said rod comprising telescopically sliding said handle on said shaft adjacent the handle end thereof.
Claim 15
Dependent Claim
46 words
The method of claim 12 wherein said elongated slot includes a lateral extension positioned for receiving said projection when said rod is in the second position therefor, and further comprising releasably securing said rod in said second position by moving said projection into said lateral extension.
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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) | 1983-12-23 | 1984-06-23 | 1984-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-12-23 | 1988-06-23 | 1988-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-12-23 | 1992-06-23 | 1992-12-23 | $7700.00 | Window Closed / Lapsed |