Abstract: A ladder stabilizer having a base plate that engages with a lower portion of the ladder and having a tire receiving portion at an end portion of the base plate. The weight of a vehicle tire on the tire receiving portion provides increased stability to the base plate of the ladder stabilizer. The tire receiving portion can be moved to either side of the base plate and can have a base plate-engaging mechanism on its bottom surface to couple with a mating surface of the base plate. The ladder can be retained by a leg retainer, rung retainer, or other retaining member that is coupled to a ladder retainer attachment portion of the base plate. Preferably, the ladder retainer mechanism includes some type of fastener or tensioning mechanism to secure the lower portion of the ladder to the base plate.

Abstract: A slip-on eave brace and a system incorporating the same for providing fall arrest on a sloped roof is disclosed. The slip-on eave brace has a soffit load distributing member, a vertical member coupled to the soffit load distributing member at one end portion thereof, and a sloped roof engaging member coupled to an opposite end portion of the vertical member. A safety line attachment member is fixed to an opposite end portion of sloped roof engaging member to the coupling with the vertical member. In a fall arrest event, fall forces are transferred via the safety line into the slip-on eave brace and into the eave of a sloped roof. A sloped roof fall arrest system can use one or more slip-on cave braces to provide fall protection to one or more workers on a sloped roof.

Abstract: A slip-on eave brace and a system incorporating the same for providing fall arrest on a sloped roof is disclosed. The slip-on eave brace has a soffit load distributing member, a vertical member coupled to the soffit load distributing member at one end portion thereof, and a sloped roof engaging member coupled to an opposite end portion of the vertical member. A safety line attachment member is fixed to an opposite end portion of sloped roof engaging member to the coupling with the vertical member. In a fall arrest event, fall forces are transferred via the safety line into the slip-on eave brace and into the eave of a sloped roof. A sloped roof fall arrest system can use one or more slip-on eave braces to provide fall protection to one or more workers on a sloped roof.

Abstract: A ladder stabilizer having a base plate that engages with a lower portion of the ladder and having a tire receiving portion at an end portion of the base plate. The weight of a vehicle tire on the tire receiving portion provides increased stability to the base plate of the ladder stabilizer. The tire receiving portion can be moved to either side of the base plate and can have a base plate-engaging mechanism on its bottom surface to couple with a mating surface of the base plate. The ladder can be retained by a leg retainer, rung retainer, or other retaining member that is coupled to a ladder retainer attachment portion of the base plate. Preferably, the ladder retainer mechanism includes some type of fastener or tensioning mechanism to secure the lower portion of the ladder to the base plate.

Abstract: A filter for filtering messages transmitted by a first signaling point and destined for a second signaling point, where the filter has a receiver connected to the first signaling point by a first external communication channel and receiving the messages thereon. The filter may have processing logic, coupled within the filter to the receiver, receiving the messages from the receiver, and filtering the messages by deleting or ignoring redundant messages transmitted to fill-in or maintain a data link between the signaling points. And, the filter may have a transmitter, coupled within the filter to the processing logic, receiving the filtered messages and transmitting them in a format capable of being processed by the second signaling point, whereby the second signaling point receives substantially fewer messages fill-in or maintenance messages.