Dust protector

Details Dust protector Dust protector

1990-10-22

1992-02-11

Seidleck, James J.

Stock material or miscellaneous articles

Hollow or container type article

Polymer or resin containing

92 34, B29D 2318, F01B 1900

Patent

active

050874934

ABSTRACT:
A dust protector includes a plurality of pleated units. Each pleated unit has a first and a second hollow truncated cone-shaped member. The converging ends of the first and second truncated cone-shaped members are joined together. The diverging end of the first truncated cone-shaped member has a first flange with annular groove which is engageable with a second flange of the diverging end of an adjacent second truncated cone-shaped member.

REFERENCES:
patent: 3301140 (1967-01-01), Beck

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