Abstract: A support pillow has a pillow-fill unit comprising pillow fill material, a neck support unit comprising an inflatable air bladder and a pillow case having a first sleeve for receiving the pillow-fill unit and a second sleeve for receiving the cervical or neck support unit. The second sleeve of the pillow case includes padding on an inner sleeve surface. The inflatable air bladder includes a valve that operates in a first state to allow an input of pressurized air and in a second state to allow an exit of bladder-stored air. Adding air to the inflatable air bladder, in the first state, increases a size of and pressure in the inflatable air bladder. Also, the padding on the inner sleeve surface of the second sleeve is soft, and compressible.

Abstract: A support pillow has a pillow-fill unit comprising pillow fill material, a neck support unit comprising an inflatable air bladder and a pillowcase having a first sleeve for receiving the pillow-fill unit and a second sleeve for receiving the cervical or neck support unit. The second sleeve of the pillowcase includes padding on an inner sleeve surface. The inflatable air bladder includes a valve that operates in a first state to allow an input of pressurized air and in a second state to allow an exit of bladder-stored air. Adding air to the inflatable air bladder, in the first state, increases a size of and pressure in the inflatable air bladder. Also, the padding on the inner sleeve surface of the second sleeve is soft, and compressible. One or more foam substrates are added to support the skull above the nape of the neck.

Abstract: A support pillow has a pillow-fill unit comprising pillow fill material, a neck support unit comprising an inflatable air bladder and a pillowcase having a first sleeve for receiving the pillow-fill unit and a second sleeve for receiving the cervical or neck support unit. The second sleeve of the pillowcase includes padding on an inner sleeve surface. The inflatable air bladder includes a valve that operates in a first state to allow an input of pressurized air and in a second state to allow an exit of bladder-stored air. Adding air to the inflatable air bladder, in the first state, increases a size of and pressure in the inflatable air bladder. Also, the padding on the inner sleeve surface of the second sleeve is soft, and compressible. One or more foam substrates are added to support the skull above the nape of the neck.

Abstract: A support pillow has a pillow-fill unit comprising pillow fill material, a neck support unit comprising an inflatable air bladder and a pillow case having a first sleeve for receiving the pillow-fill unit and a second sleeve for receiving the cervical or neck support unit. The second sleeve of the pillow case includes padding on an inner sleeve surface. The inflatable air bladder includes a valve that operates in a first state to allow an input of pressurized air and in a second state to allow an exit of bladder-stored air. Adding air to the inflatable air bladder, in the first state, increases a size of and pressure in the inflatable air bladder. Also, the padding on the inner sleeve surface of the second sleeve is soft, and compressible.

Abstract: A four-stroke engine includes a piston cylinder, and a piston located in the cylinder and movable within the cylinder. The engine includes a crankcase attached to the cylinder, the piston providing a separation boundary of a combustion portion of the cylinder from the crank case, and a crank member located within the crankcase and operatively connected to the piston. The engine including components for operating the engine in a four-stroke sequence, and components for introducing a fuel mixture into the combustion portion of the cylinder, the fuel mixture having an ability to lubricate. The engine including a construction and/or configuration for promoting passage of a portion of the mixture from the combustion portion of the cylinder to the crankcase in a sufficient amount to provide lubrication within the crankcase without reservoir lubricant in the crankcase.

Abstract: A four-stroke engine includes a piston cylinder, and a piston located in the cylinder and movable within the cylinder. The engine includes a crankcase attached to the cylinder, the piston providing a separation boundary of a combustion portion of the cylinder from the crank case, and a crank member located within the crankcase and operatively connected to the piston. The engine including components for operating the engine in a four-stroke sequence, and components for introducing a fuel mixture into the combustion portion of the cylinder, the fuel mixture having an ability to lubricate. The engine including a construction and/or configuration for promoting passage of a portion of the mixture from the combustion portion of the cylinder to the crankcase in a sufficient amount to provide lubrication within the crankcase without reservoir lubricant in the crankcase.