Handling: hand and hoist-line implements – Spacing hoist bar or frame – Load supporting units
Reexamination Certificate
2011-08-02
2011-08-02
Kramer, Dean J (Department: 3652)
Handling: hand and hoist-line implements
Spacing hoist bar or frame
Load supporting units
C294S075000, C294S081560
Reexamination Certificate
active
07988214
ABSTRACT:
The cargo spreader bar (100) is a rectangular frame with longitudinal sides (120) that are longer than the lateral sides (118e). Hooks (102) are attached to the frame along the longitudinal sides (120). The hooks (102) hold cargo hoisting chains (CH) and include actuator (206) controlled, pivoting safety locks (208) that close to secure the chains (CH) to the hooks (102). A tubular chain lifter (104) pivotally mounted to the frame extends along one of the longitudinal frame members (120). A second chain lifter (104) extends along the remaining longitudinal frame member (120). Inside sections of the tubular chain lifters (104) are pivotally coupled to a chain lifter actuator (400). When safety locks (208) are disengaged, an actuator arm (401) can be commanded to pivot the outside sections of the lifters (104) to swing upward to release the chains (CH) from the hooks (102).
REFERENCES:
patent: 1221693 (1917-04-01), Crosby
patent: 3079193 (1963-02-01), Brewer, Jr.
patent: 3220761 (1965-11-01), Himel, Jr.
patent: 3493258 (1970-02-01), Wyrough
patent: 3865422 (1975-02-01), Archer
patent: 3899205 (1975-08-01), Lanigan et al.
patent: 4251099 (1981-02-01), Hubalek et al.
patent: 4293155 (1981-10-01), Grant
patent: 4462627 (1984-07-01), Kudlicka
patent: 6991274 (2006-01-01), Brooks
patent: 2003/0222468 (2003-12-01), Brooks
patent: 6-144769 (1994-05-01), None
Kramer Dean J
Litman Richard C.
LandOfFree
Cargo spreader bar does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Cargo spreader bar, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cargo spreader bar will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2768726