LandOfFree - US Patents - Listing for Traversing hoists

Traversing hoists – Having means facilitating assembly or disassembly – Of traversing hoist from support

Pickup loading hoist

Pickup truck derrick

Traversing hoists – Having vertically swinging boom – Having means to swing boom vertically

Pickup truck derrick with traveling sheaves

Pipe bundle key

Pipe laying crane

Pipe laying machines

Traversing hoists – Having counterweight or counterbalancing means – Counterweight movable relative to load support

Pipe-laying machine

Traversing hoists – Having horizontally swinging boom or bridge – And vertically swinging

Pipe-laying vehicle

Traversing hoists – With haul-in line

Pivot ring

Traversing hoists – Boom position lock

Pivotable boom rest and latch

Traversing hoists – Having counterweight or counterbalancing means

Pivotally-mounted reeved counterweight system

Traversing hoists – Having means facilitating assembly or disassembly – Of traversing hoist from support

Pivoted arm for lowering under a slab

Platform crane with counterweight and boom carrier support linka

Polar wye crane

Traversing hoists – Having means facilitating assembly or disassembly – Of traversing hoist from support

Portable and collapsible derrick structure

Traversing hoists – Having means facilitating assembly or disassembly – Of traversing hoist from support

Portable and collapsible derrick structure

Traversing hoists – Adjustable to transport or nonuse position – Vehicle stablizing means

Portable and towable lift mechanism

Traversing hoists – Having boom shiftable vertically along a linear path – Length of hoisting cable between boom and load decreases...

Portable apparatus for moving a patient about a room

Traversing hoists – Having means facilitating assembly or disassembly – Of traversing hoist from support

Portable big game hoist/field processing unit