Buckles – buttons – clasps – etc. – Bale and package ties – hose clamps – With tighteners
Patent
1996-06-06
1997-05-20
Cuomo, Peter M.
Buckles, buttons, clasps, etc.
Bale and package ties, hose clamps
With tighteners
285253, 24279, F16L 3308
Patent
active
056302550
DESCRIPTION:
BRIEF SUMMARY
The subject invention concerns an improved hose clamp of the kind consisting of an essentially rigid tightening band which is bent to annular shape with its ends extending in an overlapping position through a tightening device to tighten the hose clamp about an object, such as a hose of an elastic material, and also of a resilient band which is positioned internally of the tightening band, said resilient band being formed with two axially spaced, inwardly directed peripheral beads which extend around the band and with an outwardly projecting ridge intermediate said beads, which ridge abuts against the internal face of the tightening band.
A hose clamp of this kind is known from the Swedish Patent Specification No. 8307152-2. The purpose of this hose clamp is to provide compensation on the one hand for such deformation of the hose material enclosed by the clamp as tends to arise when the hose clamp is tightened about the hose, and on the other for such elasticity deterioration of the hose material that arises as a consequence of material ageing. Practical tests have shown, however, that when used together with some rubber material this prior-art hose clamp fails to serve its intended function, which is due to the fact that the resilient band, owing to its very design, cannot satisfactorily allow any significant movement of the resilient-band beads in the radial and axial directions, and thus full compensation cannot either take place.
The characteristic feature of the invention resides in the provision in said resilient band ridge of a number of openings dividing the ridge into a number of bridges interconnecting said peripheral beads around the circumference of the band, said bridges arranged to impart to said beads some movability radially and also axially. This eliminates the above referred-to drawbacks found in the prior-art hose clamp.
The invention will be described in closer detail in the following with reference to the accompanying drawings, wherein
FIG. 1 is a perspective view of the hose clamp in accordance with the invention with the tightening band and the resilient band separated, and
FIGS. 2-6 are cross-sectional views through the hose clamp and at the same time a longitudinal view through a portion of a pipe and a hose enclosed by the hose clamp.
The hose clamp in accordance with the invention comprises an outer, non-resilient tightening band 1 which is bent to annular shape, and an inner resilient band 2 which is adapted to be fitted into the tightening band 1. In the drawing figures, the hose clamp is shown equipped with a conventional tightening device comprising a screw worm housing including a screw worm 4 and a threaded portion 5 of the tightening band 1 which passes through the screw worm housing 3 in threaded engagement with the screw worm 4. The tightening band 1 may be tightened about the resilient band 2 with the aid of the screw worm 4.
The resilient band 2 is bent to form a circle, preferably with the band ends overlapping. The resilient band 2 is arranged to be applied to the inner face of the tightening band 1 and is provided with two axially spaced peripheral beads 6 which are directed radially inwards and which extend along the peripheral edges of the resilient band 2. Intermediate the peripheral beads 6 the resilient band 2 forms a radially outwardly projecting ridge 7 which abuts against the inner face of the tightening band 1.
In accordance with the invention, the ridge 7 of the resilient band 2 is divided into bridges 9 which are separated by a number of openings 8. These bridges 9 connect the peripheral bead 6 at one edge of the resilient band 2 with the bead 6 at the opposite band edge around the resilient band 2.
In FIGS. 2-6, the hose clamp is shown mounted about a hose 10 which is applied about the end of a pipe 11. The drawing figures illustrate various stages. FIG. 2 illustrates the hose clamp applied about the hose 10 but not yet tightened. The length dimension a illustrates this situation.
FIG. 3 shows the hose clamp in the position in which it has been tightened
REFERENCES:
patent: 1699690 (1929-01-01), Dake
patent: 2607092 (1952-08-01), Rubly
patent: 3233922 (1966-02-01), Evans
patent: 4473928 (1984-10-01), Johnson
patent: 4530524 (1985-07-01), Stephens
patent: 4638531 (1987-01-01), Ribrant
patent: 4640536 (1987-02-01), Printiss, Sr. et al.
patent: 4667375 (1987-05-01), Enlund
patent: 4763695 (1988-08-01), Doolley
patent: 5234233 (1993-08-01), Fix
patent: 5309607 (1994-05-01), Hohmann et al.
ABA of Sweden AB
Cuomo Peter M.
Sandy Robert J.
LandOfFree
Hose clamp does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Hose clamp, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hose clamp will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1716516