Receptacles – Closures – Closure penetrated through intersecting slits
Patent
1980-09-08
1982-05-25
Lowrance, George E.
Receptacles
Closures
Closure penetrated through intersecting slits
215247, 312 1, B65D 5100, B65D 5118
Patent
active
043312543
ABSTRACT:
A seal for an opening through which an object (e.g. hose pipe) extends which comprises a stack of flexible sheets (1, 2, 3 and 4) one on top of each other, each of at least two adjoining sheets (1, 2) having an aperture therein of dimensions smaller than those of the cross-section of that part of the object contacting the seal and a series of slits radiating from said aperture towards the perimeter of the sheet and each of at least two other adjoining sheets (3, 4) having a series of slits radiating towards the perimeter of the sheet from the center of the sheet, the series of slits in at least two adjacent sheets being offset with respect to each other.
REFERENCES:
patent: 1730237 (1929-10-01), Patten
patent: 2111031 (1938-03-01), Newton
patent: 2436291 (1948-02-01), Daniel
patent: 2793373 (1957-05-01), Ewing
patent: 2803370 (1957-08-01), Lennard
patent: 3086674 (1963-04-01), Scheuerman
patent: 4030629 (1977-06-01), Melnikov
Butterworth Systems Inc.
Lowrance George E.
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