Tent – canopy – umbrella – or cane – Portable shelter – Plural shelters – shelter having plural compartments – or...
Patent
1988-03-03
1989-03-28
Bell, J. Karl
Tent, canopy, umbrella, or cane
Portable shelter
Plural shelters, shelter having plural compartments, or...
52173DS, 14 715, E04H 1518, E06B 716
Patent
active
048154903
ABSTRACT:
An assembly system comprises a connection tube of flexible sheet material. The connection tube has at its end a rigid frame element which is larger than a rigid frame element formed in similar manner but of smaller dimensions. The larger frame element and the sheet material affixed thereto are pushed through the smaller frame element and drawn tight against the latter for sealingly urging the flexible sheet material thereagainst.
REFERENCES:
patent: 3352314 (1967-11-01), Frommelt et al.
patent: 3581331 (1971-06-01), Fisher et al.
patent: 3699600 (1972-10-01), Gacs et al.
patent: 3703737 (1972-11-01), Eggert
patent: 3713183 (1973-01-01), Belisle
patent: 3843987 (1974-10-01), Lodjic
patent: 4574543 (1986-03-01), Crossom
Bell J. Karl
Trelleborg AB
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