Capsule having inclined end face for treating wooden element

Details Capsule having inclined end face for treating wooden element Capsule having inclined end face for treating wooden element

1993-06-23

1995-06-20

Britts, Ramon S.

Plant husbandry

Injection, method or apparatus

A01G 2900

Patent

active

054252016

ABSTRACT:
A capsule for insertion into a bore includes a hollow head section having a first diameter, a hollow shank, extending along a central axis of the capsule and having a second diameter smaller than the first diameter, interconnected with the head section by a hollow tapered transitional section, and a cap received within the head section. The cap defines, together with inner surfaces of the shank, the transitional section and the end face, a capsule volume for storing a chemical agent. The capsule is insertable into the bore so that when the capsule is inserted into the bore, the distal edge portion of the shank end face abuts an end wall of the bore. The shank is frangible so that when a force is applied to the head section, causing the head section to at least partly move into the bore, the distal edge portion translates the force into a stress which breaks the shank to release the chemical agent from the capsule volume. To assist it in breaking, the shank is provided with a groove extending around its circumferential exterior and dividing it into a first shank section, extending between the transitional section and the groove, and a second shank section, extending between the shank end face and the groove.

REFERENCES:
patent: 1999458 (1935-04-01), Hollister
patent: 2970404 (1961-02-01), Beaufils et al.
patent: 3691683 (1972-09-01), Sterzik
patent: 3706161 (1972-12-01), Jenson
patent: 4308689 (1982-01-01), Jenson et al.
patent: 4342176 (1982-08-01), Wolfe
patent: 4344250 (1982-08-01), Fahlstrom
patent: 4905410 (1990-03-01), Merving

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