Caulking tube with an improved seal to retard the passage of air

Details Caulking tube with an improved seal to retard the passage of air Caulking tube with an improved seal to retard the passage of air

1978-02-28

1980-08-19

Bartuska, F. J.

Dispensing

With discharge assistant

Insertable cartridge or removable container

B65D 8300

Patent

active

042179955

ABSTRACT:
The present invention relates to an improved caulking tube with a superior seal between the plunger and the rear of the caulking tube which is produced by coating the inside of the rear end of the body of the caulking tube with a moisture proof cohesive chemical material such that after the caulking tube is filled with the desired material and after the plunger is inserted there is produced an airtight moisture proof seal.

REFERENCES:
patent: 2343026 (1944-02-01), Radbruch
patent: 2478078 (1949-08-01), Battenfeld
patent: 2827395 (1958-03-01), Jordan et al.
patent: 2833451 (1958-05-01), Sherbondy
patent: 3080330 (1963-03-01), Rudel et al.
patent: 3205206 (1965-09-01), Marcantonio
patent: 3250443 (1966-05-01), Abbott
patent: 3428565 (1969-02-01), Fischer
patent: 3503542 (1970-03-01), Ungerer
patent: 3527389 (1970-09-01), Farmer
patent: 3815791 (1974-06-01), Clark

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