Buckles – buttons – clasps – etc. – Bale and package ties – hose clamps – Metal bands
Patent
1991-03-15
1993-07-27
Brittain, James R.
Buckles, buttons, clasps, etc.
Bale and package ties, hose clamps
Metal bands
24 20CW, F16L 3302
Patent
active
052301265
ABSTRACT:
A clamp structure which is provided with at least one pair of plastically deformable ear-like folds located on opposite sides of a center longitudinal cut in the clamping band and spaced in the circumferential direction by such a distance that they can be plastically deformed simultaneously by the use of a pincer-like tool. The pincer-like tool includes two sets of jaw-like members spaced from one another so as to permit simultaneous engagement of the two ear-like folds of a respective pair. The pincer-like tool may thereby have a relatively fixed center member forming a relatively fixed jaw-like member and two pivotally supported jaw-like members operable to be actuated toward one another. In the alternative, the pincer-like tool may include two sets of jaw-like members pivotally connected with each other whose points of pivotal connection are coupled with each other as also corresponding jaw-like members to assure movement in unison. By simultaneously plastically deforming the two ear-like folds while maintaining their relative position in the circumferential direction, a clamp structure can be realized devoid of any gaps, discontinuities or steps that might otherwise be a source of leakage.
REFERENCES:
patent: 421598 (1890-02-01), Monto
patent: 2063167 (1936-12-01), Kamborian
patent: 4299612 (1981-11-01), Oetiker
patent: 4907319 (1990-03-01), Calmettes et al.
Brittain James R.
Craig Paul M.
Hans Oetiker AG Maschinen - und Apparatefabrik
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