Self-weighing expandable bag
OwnerLiviu Davidinventor
Life of this patent
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Abstract
A self-weighing expandable bag includes an inner receptacle that can slide vertically within an outer sleeve under the weight of bag contents. One or more springs, which may include coils and/or elastic fabric, connect the inner receptacle to the outer sleeve. One or more bag handles are attached to the sleeve. As the weight of the contents of the receptacle increases, the receptacle slides down within the sleeve and increasingly protrudes under the sleeve, expanding the vertical extent of the bag and revealing graphical markings underneath the sleeve and/or within a window defined in the sleeve.
Claims19
A bag sized to be carried by a human, the bag comprising:
- a receptacle configured to contain a load for transportation;
- a sleeve comprising a handle, the sleeve at least partially laterally enclosing the receptacle so that the receptacle slides vertically inside of and with respect to the sleeve;
- and
- at least one spring attached to the sleeve and configured to support the receptacle, the spring controlling a distance by which the receptacle descends within the sleeve under a weight of the load, wherein an extent to which the receptacle protrudes beyond a bottom of the sleeve as the receptacle descends within the sleeve when the bag is held by the handle is visually indicative of the weight of the load.
Dependencies are inferred from the claim text.