Clamping collar for tubular part
OwnerLionel Calmettesinventor
Life of this patent
Estimating the term…
Abstract
A clamping collar includes a tightener connected to two ends of a band which has its ends positioned on an arcuate screen. Clamping is achieved symmetrically with respect to a diametrical plane of the collar so that the portions of the collar which lie in the diametrical plane do not move relative to the part to be clamped.
Claims23
Clamping collar for tubular part, comprising an arcuate screen, a belt and a tightening means, characterized in that:
- the arcuate screen (2) is symmetrical in relation to a diametral plane of the collar,
- the belt (1) is symmetrical in relation to said diametral plane of the collar, and its ends are positioned on the arcuate screen (2),
- the tightening means is substantially symmetrical in relation to said diametral plane of the collar and is connected to the two ends of the belt (1), and
- the tightening is performed symmetrically in relation to said diametral plane of the collar, by drawing the two ends of the belt (1) towards one another by way of the action of the tightening means, so that the points of the arcuate screen (2) and belt (1) situated in said diametral plane of the collar do not have any relative motion in relation to the part to be clamped.
A method for fitting a clamping collar on a tubular part, the collar having an arcuate screen, a belt and means for tightening the belt, the method comprising the steps of:
- spreading apart the belt ends by acting on the tightening means so as to increase the diameter of the belt beyond the diameter of the tubular part to be clamped;
- positioning the collar around the tubular part to be clamped, and
- releasing the action on the tightening means in order to let the tightening means bring the belt ends closer together to reduce the diameter of the belt below the diameter of the part to be clamped.
A clamping collar for a tubular part comprising:
- an arcuate screen which is substantially symmetrical with respect to a diametral plane of the collar;
- a belt which is substantially symmetrical with respect to the diametral plane of the collar and which has its ends on said arcuate screen;
- and
- a helicoid spring which is substantially symmetrical with respect to the diametral plane of the collar and which is connected to said belt ends, wherein action of said spring draws said two belt ends together to clamp a tubular part.
Dependencies are inferred from the claim text.