Dispensing – With discharge assistant – Insertable cartridge or removable container
Patent
1976-06-21
1978-03-07
Reeves, Robert B.
Dispensing
With discharge assistant
Insertable cartridge or removable container
222386, 24217, G01F 1104
Patent
active
040775500
ABSTRACT:
A cylinder, such as the barrel of a caulking cartridge, interlocks with an internal member, such as the closure plunger for the caulker, by means of two to four cuts through the cylinder wall evenly spaced from the end of the cylinder to form catches from the segments of the wall between each of the cuts in the end of the cylinder. The catches are longer circumferentially of the wall than their width from the cut to the end of the cylinder, and they are deformed inward from the locus of the cylindrical wall toward a chord orientation. The member has a body fitting the inside of the cylinder and slidable past the catches, and the body is seated inside the cylinder so the catches are disposed between the body and the end of the cylinder to interlock with the body to prevent its movement out of the end of the cylinder. The cuts and catches can be formed either before or after the member is seated in the cylinder, and the inward deformation of the catches to insure an interlock can be accomplished by the way the cuts are formed, or by an interference fit between the member and the cylinder, or both.
REFERENCES:
patent: 2098408 (1937-11-01), Watson
patent: 2244222 (1941-06-01), Slootsky
patent: 2592130 (1952-04-01), Erb et al.
patent: 2752074 (1956-06-01), Martin
patent: 2869099 (1959-01-01), Robinson
patent: 3211347 (1965-10-01), Phillips
patent: 3532372 (1970-10-01), Stroud
Reeves Robert B.
Skaggs H. Grant
Voplex Corporation
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