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2022
|
P/S
|
gears, speed reducers and gear boxes being parts of machines other than for land vehicles; machin... |
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2013
|
Invention
|
Wear resisting span lock system. A wear resisting span lock system for bascule bridges includes a... |
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2004
|
Invention
|
Static stabilizers for bridges. An adjustable static stabilizer used to ameliorate shock loading.... |
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2002
|
P/S
|
metal shock absorbing span lock assembly comprising a bar lock in direct contact with wear shoes ... |
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|
Invention
|
Span lock with centering guide. A span lock system for a double-leaf drawbridge. A guide housing ... |
|
|
Invention
|
Pre-load adjustment for span lock system. A drawbridge span lock system in which a locking bar lo... |
|
1993
|
Invention
|
Energy-absorbing span lock system for drawbridges. An energy absorbing span lock system for drawb... |
