Adjustable diameter cylindrical mechanism
OwnerMasood Habibiinventor
Life of this patent
Estimating the term…
Abstract
An adjustable diameter mechanism includes a plurality of cylinder portions, each of the cylinder portions comprising an arcuate portion of a cylinder and extending along an arc of less than or about 120 degrees of a 360 degree circle and having an inner side and an outer side. The inner side of the cylinder portions are coupled to first ends of a scissors mechanism at a pivot point and a slot of the cylinder portions, the scissors mechanism having a first and a second piece pivotally coupled at a pivot coupling, respective second ends of the scissors mechanism coupled to a respective pair of threaded bolts engaged with a screw having opposing threads meeting at a central point thereof.
Claims7
An adjustable diameter mechanism, comprising:
- a plurality of cylinder portions, each of the cylinder portions comprising an arcuate portion of a cylinder and extending along an arc of less than or about 120 degrees of a 360 degree circle and having an inner side and an outer side;
- and
- the inner side of the cylinder portions coupled to first ends of a scissors mechanism at a pivot point and a slot of the cylinder portions, the scissors mechanism having a first and a second piece pivotally coupled at a pivot coupling, respective second ends of the scissors mechanism coupled to a respective pair of threaded bolts engaged with a screw having opposing threads meeting at a central point thereof,
- wherein the cylinder portions are provided with spring-loaded flaps along their longitudinal edges which are configured to extend when the diameter of the mechanism is increased and retract when the diameter of the mechanism is decreased.
Dependencies are inferred from the claim text.