Weighing devices
OwnerPeter John Marksinventor
Life of this patent
Estimating the term…
Abstract
A weighing device (10) for providing a indication of the weight of a piece of luggage (5), the device comprising load bearing means (11) adapted to be placed on or form part of the carry means of the piece of luggage (H) and indicator means (19) associated with the load bearing means whereby when the luggage is lifted by the carry means (H), the load bearing means is subjected to the mass of the piece of luggage and the indicator means provides an indication of the weight of the piece of luggage.
Claims12
A weighing device for providing a ready indication of the weight of a rucksack or backpack, the device comprising load bearing means adapted to be placed on or form part of a shoulder strap of the rucksack or backpack, the load bearing means comprising an elastic strip attached parallel to an undulating portion of the strap, the elastic strip comprising concertina bellows secured to surround the undulating portion of the strip whereby the external configuration of the bellows changes as the strip stretches under load to provide a visual indication of the weight of the rucksack or backpack.
A rucksack or backpack having a pair of spaced shoulder straps, at least one strap having stress/strain means to monitor the stress/strain in the strap as the rucksack or backpack is worn on the shoulder of a user, and the at least one strap having indicator means that provides a visual indication when the stress/strain of the strap has exceeded a predetermined threshold,
- wherein the stress/strain means comprises an elastic portion of the strap, and wherein the indicator means constitutes part of the elastic portion of the strap that becomes exposed to provide a visual indication of the stress/strain means being stretched under load.
A rucksack or backpack having a pair of spaced shoulder straps, at least one strap having stress/strain means to monitor the stress/strain in the strap as the rucksack or backpack is worn on the shoulder of a user, and the at least one strap having indicator means that provides a visual indication when the stress/strain of the strap has exceeded a predetermined threshold,
- wherein the stress/strain means comprises an elastic strip attached parallel to an undulating portion of the strap.
A rucksack or backpack having a pair of spaced shoulder straps, at least one strap having stress/strain means to monitor the stress/strain in the strap as the rucksack or backpack is worn on the shoulder of a user, and the at least one strap having indicator means that provides a visual indication when the stress/strain of the strap has exceeded a predetermined threshold,
- wherein the stress/strain means comprises a strain gauge that is electrically coupled to a liquid crystal display to provide a visual indication of the load on the strap or carry means.
Dependencies are inferred from the claim text.