Abstract: In one aspect, a movable barrier operator system is provided that includes a motor configured to turn a drum to pay out a cable from the drum and permit a door connected to the cable to move from an open position toward a closed position. The system includes a memory configured to store an expected variable of the door, and a sensor configured to detect movement of the door. The system further includes a processor circuit operatively coupled to the motor, the memory, and the sensor. The processor circuit is configured to: use the sensor to estimate an actual variable of the door; determine whether the actual variable is acceptable based at least in part on the expected variable and the processor circuit causing the motor to turn the drum; and change operation of the movable barrier upon the actual variable of the movable barrier being unacceptable.

Abstract: There is provided a foldable motorized cart having at least a first and a second connected section, each of the sections connected with a hinge and pivotable with respect to each other and further including a compartment hingedly connected to either one of the sections, with the compartment having a bottom floor, side walls and a top cover surface, and also having an internal space for containing, a motor drive system, a drive controller and a battery. The battery and drive controller are electrically connected to the motor drive system which is mechanically linked to at least one of a drive wheel or a drive track mechanism for propelling the motorized cart, where the motor drive system is located within the drive track mechanism.

Abstract: The present invention pertains to a mobile cart which can be utilized for transporting beach supplies including toys games, sporting goods, umbrellas, blankets, towels and food. Advantageously, the subject invention can be folded into a small suitcase like container and then opened to provide a cart as set forth herein. The cart according to the present invention may also include a self-propulsion system including a motor or motors for driving a tread, track or wheels along with a low friction skid surface or skis for directing the cart to a desired location. There may also be included a power source, for example batteries or solar panels, may be utilized to supply the power needed for self-propulsion and for powering or charging portable electronic devices, if desired.

Abstract: The present invention pertains to a mobile cart. In a specific embodiment, the subject cart can be utilized as a cart for transporting beach supplies including toys, games, sporting goods, umbrellas, blankets, towels and food and beverages from a transport vehicle or building onto a beach. The subject cart can also provide storage areas for carrying coolers for foods, beverages, and separate compartment for other utensils such as forks, spoons and the like. Advantageously, the subject invention can be folded into a small suitcase like container and then opened to provide a cart for holding and transporting items as set forth herein. The cart according to the present invention may also include a self-propulsion system including a motor or motors for driving a tread, track or wheels along with a low friction skid surface or skis for directing the cart to quickly and easily move the cart, containing the beach supplies to a desired location across the sand.

Abstract: The present invention pertains to a mobile cart which can be utilized as a cart for transporting beach supplies including toys, games, sporting goods, umbrellas, blankets, towels and food. Advantageously, the subject invention can be folded into a small suitcase like container and then opened to provide a cart as set forth herein. The cart according to the present invention may also include a self-propulsion system including a motor or motors for driving a tread, track or wheels along with a low friction skid surface or skis for directing the cart to a desired location. There may also be included a power source, for example batteries or solar panels, may be utilized to supply the power needed for self-propulsion and for powering or charging portable electronic devices, if desired.

Abstract: The present invention pertains to a mobile cart. In a specific embodiment, the subject cart can be utilized as a cart for transporting beach supplies including toys, games, sporting goods, umbrellas, blankets, towels and food and beverages from a transport vehicle or building onto a beach. The subject cart can also provide storage areas for carrying coolers for foods, beverages, and separate compartment for other utensils such as forks, spoons and the like. Advantageously, the subject invention can be folded into a small suitcase like container and then opened to provide a cart for holding and transporting items as set forth herein. The cart according to the present invention may also include a self-propulsion system including a motor or motors for driving a tread, track or wheels along with a low friction skid surface or skis for directing the cart to quickly and easily move the cart, containing the beach supplies to a desired location across the sand.

Abstract: The present invention pertains to a mobile cart. In a specific embodiment, the subject cart can be utilized as a cart for transporting beach supplies including toys, games, sporting goods, umbrellas, blankets, towels and food and beverages from a transport vehicle or building onto a beach. The subject cart can also provide storage areas for carrying coolers for foods, beverages, and separate compartment for other utensils such as forks, spoons and the like. Advantageously, the subject invention can be folded into a small suitcase like container and then opened to provide a cart for holding and transporting items as set forth herein. The cart according to the present invention may also include a self-propulsion system including a motor or motors for driving a tread, track or wheels along with a low friction skid surface or skis for directing the cart to quickly and easily move the cart, containing the beach supplies to a desired location across the sand.