An in-line pump assembly attachable to a hydration bladder includes an electrically driven pump held in a casing and placed in the flow of hydrating liquid. The pump connects to the outlet of the hydration system. Bulbs at the respective ends of a switch line hold an essentially incompressible liquid. Pinching a bite valve bulb on the output end of the drinking tube cause a switch line bulb on the other end of the switch line to expand, closing a pressure switch and causing the pump to pump liquid from the hydration bladder through the drinking tube. Releasing the bite valve bulb reduces the pressure in the switch bulb, disengaging the switch and stopping the flow of liquid. The in-line pump assembly may be connected to a preexisting hydration system through an adapter.

A system and method for enabling a person with very limited motor and verbal skills to communicate with another person. The system has a pair of spring-loaded buttons having a switch and a contact surface that is pushed by the person to send a contact signal to a controller unit to convert the contact signal into an indication signal. The indication signal is sent to an display to display a message in response to the selected movement of the person's head.

Provided is a human body pressure switch, a vehicle seat, a vehicle, and a method for processing a human body pressure switch. The human body pressure switch includes: a pressure switch element, an elastic pressure-contact body provided at the upper side or the lower side of the pressure switch element, in which the elastic pressure-contact body includes a spacing support structure and a force support protrusion, the force support protrusion corresponds to a sensing contact of the pressure switch element, in a state with pressure from an external force, amount of deformation of the spacing support structure is greater than amount of deformation of the force support protrusion, and in a state without pressure from the external force, the spacing support structure plays a supporting role.

Provided is a human body pressure switch, a vehicle seat, a vehicle, and a method for processing a human body pressure switch. The human body pressure switch includes: a pressure switch element, an elastic pressure-contact body provided at the upper side or the lower side of the pressure switch element, in which the elastic pressure-contact body includes a spacing support structure and a force support protrusion, the force support protrusion corresponds to a sensing contact of the pressure switch element, in a state with pressure from an external force, amount of deformation of the spacing support structure is greater than amount of deformation of the force support protrusion, and in a state without pressure from the external force, the spacing support structure plays a supporting role.

Eyewear or other head-worn apparatus are fitted with an activation accessory that includes one or more switch elements integrated with or attached to a nose piece of the eyewear. The switch elements are communicably coupled to a processor-based controller so as to provide input signals to the controller responsive to wearer-initiated activations of the switch elements through interaction with a frame or temple piece of the eyewear. Upon receipt, the controller evaluates the input signals to determine whether or not they represent a command for the controlled device by assessing the input signals for a signal pattern indicative of such a command, and then, if the evaluation determines that the input signals do represent the command, issues the command to the controlled device. Otherwise the controller proceeds to receive and evaluate further input signals from the switch elements in a like manner as the first input signals.

The invention relates to a turning plate for measuring the pushing-off forces of swimmers in a swimming pool when turning and includes force sensors for determining the pushing-off forces and a stiff plate, which can be secured in a stable position parallel to the pool wall. The turning plate has a stiff rectangular frame on which the stiff plate is secured with pre-tensioning by a clamping screw at four locations, in each case over a force sensor. Moreover, next to each of these force sensors, an adjusting pin is arranged on the frame and can be driven out from the frame in order to support the frame on the pool wall. The frame has at least one, preferably two stiff securing brackets for mounting it on the pool edge, preferably on a starting block.

The load-detecting device 1 includes a base 2 engaged with a pair of S springs 100, and a load detection sensor unit SU that is mounted on the base 2 and includes a first electrode 52 and a second electrode 62 facing each other and being brought into contact with each other by pressing force of the seat cushion SC when a load is detected, The upper surface 47S of the load detection sensor unit SU that is pressed by the seat cushion SC when a load is detected is located at the same height as or higher than the upper ends 101 of the respective S springs 100, with which the base 2 is engaged, and the contact surface between the first electrode 52 and the second electrode 62 is located lower than the upper ends 101 of the respective S springs 100, with which the base 2 is engaged.

The load-detecting device 1 includes a base 2 engaged with a pair of S springs 100, and a load detection sensor unit SU that is mounted on the base 2 and includes a first electrode 52 and a second electrode 62 facing each other and being brought into contact with each other by pressing force of the seat cushion when a load is detected The upper surface 47S of the load detection sensor unit SU that is pressed by the seat cushion when a load is detected is located at the same height as or higher than the upper ends 101 of the respective S springs 100, with which the base 2 is engaged, and the contact surface between the first electrode 52 and the second electrode 62 is located lower than the upper ends 101 of the respective S springs 100, with which the base 2 is engaged.

The invention relates to a turning plate for measuring the pushing-off forces of swimmers in a swimming pool when turning and includes force sensors for determining the pushing-off forces and a stiff plate, which can be secured in a stable position parallel to the pool wall. The turning plate has a stiff rectangular frame on which the stiff plate is secured with pre-tensioning by a clamping screw at four locations, in each case over a force sensor. Moreover, next to each of these force sensors, an adjusting pin is arranged on the frame and can be driven out from the frame in order to support the frame on the pool wall. The frame has at least one, preferably two stiff securing brackets for mounting it on the pool edge, preferably on a starting block.

Eyewear or other head-worn apparatus are fitted with an activation accessory that includes one or more switch elements integrated with or attached to a nose piece of the eyewear. The switch elements are communicably coupled to a processor-based controller so as to provide input signals to the controller responsive to wearer-initiated activations of the switch elements through interaction with a frame or temple piece of the eyewear. Upon receipt, the controller evaluates the input signals to determine whether or not they represent a command for the controlled device by assessing the input signals for a signal pattern indicative of such a command, and then, if the evaluation determines that the input signals do represent the command, issues the command to the controlled device. Otherwise the controller proceeds to receive and evaluate further input signals from the switch elements in a like manner as the first input signals.