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US 5,011,710 AGranted
Bridge maintenance method and equipment
OwnerJohn F. Harrisoninventor
Life of this patent
Estimating the term…
Abstract
Surfaces of a structure are treated from a walkway within an enclosure suspended from the structure. The enclosure has a downwardly-converging cross section terminating in a vacuum conveyor for collecting and removing particles accumulating from the blasting process. The enclosure is preferably provided in modules. The vacuum conveyor removes the particulate material for transfer to conventional separating and re-cycling equipment. the enclosure and walkway are moveably suspended from transverse guideways secured to the structure.
Claims7
A method of removing and then applying surface material on structural components, comprising:
- supporting an enclosure adjacent certain of said components to include a surface of at least one of said components in an at least partially enclosed space;
- suspending walkway means in said enclosed space, and processing said surface from said walkway means;
- and
- establishing a conveyor conduit at the lower extremity of said enclosure, and applying a vacuum to said conduit to remove gaseous and particulate material from said enclosure and maintain reduced pressure within said enclosure.
1 more element
Dependencies are inferred from the claim text.