Handling: hand and hoist-line implements – Hook – hoistline – or grab type – Resilient suspension means
Patent
1998-03-04
1999-12-07
Cherry, Johnny D.
Handling: hand and hoist-line implements
Hook, hoistline, or grab type
Resilient suspension means
B66C 134
Patent
active
059970634
ABSTRACT:
An improved J-hook (20) includes an eye portion (21) having a circular transverse cross-section; an arcuate hook portion (22) having a circular transverse cross-section; a shank portion (23) arranged between the eye and hook portions and having an oval-shaped transverse cross-section; a first transitional portion (24) between the eye and shank portions and having a transverse cross-section in smooth continuous transition from the circular transverse cross-section of the eye portion to the oval-shaped transverse cross-section of the shank portion; and a second transitional portion (25) between the shank and hook portions and having a transverse cross-section in smooth continuous transition from the oval-shaped transverse cross-section of the shank portion to the circular transverse cross-section of the hook portion. The improved J-hook is drop-forged of "MT-10" steel, and exhibits a markedly-improved strength-to-weight ratio.
REFERENCES:
patent: 2646306 (1953-07-01), Foss
patent: 3488025 (1970-01-01), Rowland
patent: 4171842 (1979-10-01), Tolle
patent: 5564766 (1996-10-01), Lowery
Cherry Johnny D.
Columbus McKinnon
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