Safety device applied to appliances for lifting boards onto...

Details Safety device applied to appliances for lifting boards onto... Safety device applied to appliances for lifting boards onto...

2007-11-29

2010-10-12

Adams, Gregory W (Department: 3652)

Material or article handling

Apparatus for moving material to a position in the erection...

Flat wall or ceiling member manipulating means

C254S00400R, C254S272000, C187S264000

Reexamination Certificate

active

07811040

ABSTRACT:
A safety device applied to appliances for lifting boards onto ceilings and walls comprises a telescopic mast, an upper part of which accommodates the board holder and traction and safety ropes operated by a manually controlled winch, a component for attaching and fastening the traction rope and safety rope so that they are at the same fastening level, and a mechanism for tensioning the safety rope. The attachment component is fixed in the lower receiving part of the terminal inner section of the telescopic assembly. The tensioning mechanism is external relative to the telescopic mast and situated facing the winch for winding the traction and safety ropes.

REFERENCES:
patent: 3033529 (1962-05-01), Pierrat
patent: 3487952 (1970-01-01), Maher et al.
patent: 5557892 (1996-09-01), Lavin
patent: 2005/0133768 (2005-06-01), Huang
patent: 0 969 165 (2000-01-01), None
patent: 2 758 150 (1998-07-01), None
French search report for FR0655264, dated Aug. 1, 2007.

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