A method and apparatus for testing roll together of a mattress using two weights, preferably weighted cylinders, and moving one of the weights towards the other while measuring change in distance between the weights and changes in angle of the stationary weight.

A level including level vial(s) having enhanced visibility are provided. The level may include a level vial including a material that is attracted to the interface or border of a globule within the level vial which improves visibility of the interface. The level may include a solid level indicator having easy to see end surfaces that are generally vertically oriented when in the level position. The end surfaces of the solid level indicator may allow the user to more easily compare the position of the solid level indicator to indicating lines formed on the level vial. The level may include a level vial including a first liquid and an immiscible second liquid forming a globule with the first material. The globule formed from the second material may improve visibility compared to a typical air bubble.

A tilt indicator includes a housing having a face member and a back member. A movable mass member is disposed within the housing between the face member and the back member. A first encoded indicium is disposed on the mass member, and a second encoded indicium is located on the back member. In response to the tilt indicator being subjected to a tilt event exceeding a threshold, the mass member moves from a first position to a second position.

A level including level vial(s) having enhanced visibility are provided. The level may include a level vial including a material that is attracted to the interface or border of a globule within the level vial which improves visibility of the interface. The level may include a solid level indicator having easy to see end surfaces that are generally vertically oriented when in the level position. The end surfaces of the solid level indicator may allow the user to more easily compare the position of the solid level indicator to indicating lines formed on the level vial. The level may include a level vial including a first liquid and an immiscible second liquid forming a globule with the first material. The globule formed from the second material may improve visibility compared to a typical air bubble.

The present disclosure relates to a device (100) for determining orientation of an object (3). The device (100) includes a hollow-spherical enclosure (2) supportable by the object (3) and a plurality of sensors (S1 . . . Sn) circumferentially disposed in the hollow-spherical enclosure (2). A gimbal assembly (1) is secured in the hollow-spherical enclosure (2), where at least one gimbal ring of the gimbal assembly (1) is fixed perpendicular to a gravitational weight a gravitational vector (G) of the gimbal assembly (1). Further, at least one light source (8) is secured in the gimbal assembly (1) and the gimbal assembly (1) is configured to align the at least one light source (8) relative to orientation of the object (3) such that, the light emitted by the at least one light source (8) is incident on at least one sensor of the plurality of sensors (S1 . . . Sn), to determine orientation of the object (3).

A level including level vial(s) having enhanced visibility are provided. The level may include a level vial including a material that is attracted to the interface or border of a globule within the level vial which improves visibility of the interface. The level may include a solid level indicator having easy to see end surfaces that are generally vertically oriented when in the level position. The end surfaces of the solid level indicator may allow the user to more easily compare the position of the solid level indicator to indicating lines formed on the level vial. The level may include a level vial including a first liquid and an immiscible second liquid forming a globule with the first material. The globule formed from the second material may improve visibility compared to a typical air bubble.

A level including level vial(s) having enhanced visibility are provided. The level may include a level vial including a material that is attracted to the interface or border of a globule within the level vial which improves visibility of the interface. The level may include a solid level indicator having easy to see end surfaces that are generally vertically oriented when in the level position. The end surfaces of the solid level indicator may allow the user to more easily compare the position of the solid level indicator to indicating lines formed on the level vial. The level may include a level vial including a first liquid and an immiscible second liquid forming a globule with the first material. The globule formed from the second material may improve visibility compared to a typical air bubble.

A method and apparatus for testing roll together of a mattress using two weights, preferably weighted cylinders, and moving one of the weights towards the other while measuring change in distance between the weights and changes in angle of the stationary weight.

The present disclosure relates to a device (100) for determining orientation of an object (3). The device (100) includes a hollow-spherical enclosure (2) supportable by the object (3) and a plurality of sensors (S1 . . . Sn) circumferentially disposed in the hollow-spherical enclosure (2). A gimbal assembly (1) is secured in the hollow-spherical enclosure (2), where at least one gimbal ring of the gimbal assembly (1) is fixed perpendicular to a gravitational weight a gravitational vector (G) of the gimbal assembly (1). Further, at least one light source (8) is secured in the gimbal assembly (1) and the gimbal assembly (1) is configured to align the at least one light source (8) relative to orientation of the object (3) such that, the light emitted by the at least one light source (8) is incident on at least one sensor of the plurality of sensors (S1 . . . Sn), to determine orientation of the object (3).

A level including level vial(s) having enhanced visibility are provided. The level may include a level vial including a material that is attracted to the interface or border of a globule within the level vial which improves visibility of the interface. The level may include a solid level indicator having easy to see end surfaces that are generally vertically oriented when in the level position. The end surfaces of the solid level indicator may allow the user to more easily compare the position of the solid level indicator to indicating lines formed on the level vial. The level may include a level vial including a first liquid and an immiscible second liquid forming a globule with the first material. The globule formed from the second material may improve visibility compared to a typical air bubble.