Matches 1 - 19 out of 19
Match Document Document Title
7380375 Alarm system for a loading dock  
A safety system for a truck doorway such as a loading dock with an elevated platform provides an alarm that warns of a falling hazard that may exist due to the dock door being open while a truck is...
7356966 Railroad grade crossing assembly  
An articulate railroad grade crossing assembly. In a preferred embodiment, the crossing assembly has an adjustable reach so that it can be adjusted to completely or partially close roadways of...
7337822 Retractable safety barrier  
A retractable barrier includes a rollup or otherwise retractable panel that can extend between two spaced apart support members. When not in use, the panel can retract onto one of the support...
7237591 Retractable safety barrier  
A retractable barrier includes a rollup or otherwise retractable panel that can extend between two spaced apart support members. When not in use, the panel can retract onto one of the support...
7207370 Retractable safety barrier  
A retractable barrier includes a rollup or otherwise retractable panel that can extend between two spaced apart support members. When not in use, the panel can retract onto one of the support...
7017643 Guard assembly and handrail for use with overhead doors  
A guard assembly is used near a doorway with an overhead door on a platform having at least one post mounted adjacent the doorway. The assembly preferably comprises a barrier adapted to extend...
6910239 Dock leveler having an inflatable member  
A dock leveler for use in a loading dock. The dock leveler includes a ramp, an inflatable assembly, and a support structure. The ramp pivots between a generally horizontal lowered position and an...
6792716 Barrier gate  
A barrier gate includes a crossbar selectively pivoting between a saddle post and anchor post. The crossbar includes a first end and a second end. The first end of the cross bar is pivotally...
6760944 Dock leveler having an inflatable member  
A loading dock including a dock surface and a supporting structure positioned within a pit in the dock surface. The loading dock also includes a ramp, an inflatable assembly, and a support. The...
6711774 Dock leveler having an inflatable member  
A dock leveler for use in a loading dock. The dock leveler includes a ramp, an inflatable assembly, and a gas moving device. The ramp includes an undersurface and is pivotal between a generally...
6618993 Railroad grade crossing assembly  
A railroad grade crossing assembly for blocking vehicle access across a railroad crossing including a gate assembly connectable to a stanchion and light assembly. This gate assembly is movable...
6119399 Channel guided parallelogram gate  
A parallelogram gate for controlling traffic on a roadway, comprised of an arm assembly that is rotatable between a raised position and a horizontal, longitudinally-extended, roadway blocking...
6061964 Portable remote controlled door closer  
A portable remotely controlled automatic door closing apparatus enables the door of a room or office to be closed from a remote location within the room or office by transmitting a signal to an...
6009670 Gate operator for vertical gate movement  
A gate operator for lifting a gate about a horizontal axis at a lower proximate corner thereof to vertically raise and lower a gate in a generally 90 degree arc in the plane of the gate by using a...
5910075 Portable remote-controlled door closer  
A portable remotely controlled automatic door closing apparatus enables the door of a room or office to be closed from a remote location within the room or office by transmitting a signal to an...
5727348 Portable remote controlled door closer  
A portable remotely controlled automatic door closing apparatus enables the door of a room or office to be closed from a remote location within the room or office by transmitting a signal to an...
5564238 Safety gate for a loading dock  
A safety gate to be mounted on a loading dock. The safety gate includes a pair of vertical columns which are mounted on the floor of the dock on either side of a doorway that can be enclosed by an...
5459963 Safety gate for loading docks  
A barrier for a loading dock having an opening in a wall having a dock leveler positioned in a floor of the loading dock adjacent said opening. The dock leveler has a horizontal position where...
5440838 Motorized vertical lift gate  
A motorized vertical lift gate whose operating mechanism is very compact, simple, and concealed inside a hollow gate post. Said gate comprises a plurality of horizontal rails arranged in a parallel...
Matches 1 - 19 out of 19