Chemical apparatus and process disinfecting – deodorizing – preser – Physical type apparatus – Apparatus for treating solid article or material with fluid...
Patent
1991-03-22
1995-07-18
Warden, Robert J.
Chemical apparatus and process disinfecting, deodorizing, preser
Physical type apparatus
Apparatus for treating solid article or material with fluid...
24657, 24671, 24672, 24673, 206370, 206438, 206480, 422292, A61L 200, A61L 226
Patent
active
054339308
DESCRIPTION:
BRIEF SUMMARY
The invention relates to a screen basket for sterilizing containers comprising a bottom with openings therein and holding elements fixed on the bottom and having an extension which extends through at least one opening of the bottom and onto which a releasable fixing member surrounding the extension is placed on the underside of the bottom.
Such a screen basket with fixing members designed in the fashion of a nut and screwable onto extensions carrying an external thread is known from German patent 2 713 094. Such screen baskets have worked exceedingly well as it is possible to attach holding elements in this way to any points on the basket.
Proceeding from this prior art, the object underlying the subject matter of the application is to simplify the fixing of the holding elements at various points on the bottom of the screen basket and, in particular, the putting-on and removing of the fixing members on the extensions.
This object is accomplished in accordance with the invention in a screen basket of the kind described at the beginning in that the extension has at least one recess on its side surfaces, in that the fixing member carries a detent element which engages the recess at the side and is held on the fixing member for removal from the recess by elastic deformation, in that the detent element comprises two parallel resilient detent arms, the mutual spacing of which is less than the outer diameter of the extension, in that the two detent arms are mounted in the fixing member for displacement parallel to their longitudinal direction, and in that contact surfaces extending away from one another are provided for the detent arms in the path of displacement of the ends of the detent arms.
This enables placing of the fixing members in a simple way on the extension, with the elastic detent element engaging a recess at the side of an extension and thus being fixed on the extension. The fixing member is released by elastic deformation of the detent element which is then moved out of the recess at the side and releases the fixing member again. Thus, the fixing member is fixed by simply putting it on and removed again by deformation of the detent element, which constitutes a clear simplification in comparison with the screwing-on and off of known fixing members. It is particularly advantageous for the recess on the extension to be a circumferential groove and for the detent element to engage the annular groove on opposite sides of the extension.
Provision may be made for the extension to carry a tip which rests against the detent element and pushes it elastically to the side when the fixing member is pushed onto the extension. Hence when the fixing member is put on, no additional deformation of the detent element is required by the operator as this takes place automatically with the putting-on of the fixing member.
In a preferred embodiment provision is made for the detent element to comprise two parallel resilient detent arms, the mutual spacing of which is less than the outer diameter of the extension, for the two detent arms to be mounted in the fixing member for displacement parallel to the longitudinal direction and for contact surfaces extending away from one another to be provided for the detent arms in the path of displacement of the ends of the detent arms. The non-deformed detent element thus engages with its detent arms the recesses in the extension and fixes the extension with respect to the fixing member. To release it, the detent arms are displaced parallel to themselves and then come to rest with their end against the contact surfaces extending away from one another which thereby bend open the two detent arms until the detent arms are elastically bent out of the recesses of the extension. It is then readily possible to remove the fixing member from the extension.
The contact surfaces may advantageously be formed by a wedge of the fixing member which is oriented towards an insert opening for the extension.
It is particularly expedient for the fixing member to comprise a shaft which extends transvers
REFERENCES:
patent: 1265869 (1918-05-01), Arkin
patent: 1443277 (1923-01-01), Robinson
patent: 2316145 (1943-04-01), Futrell
patent: 2929177 (1960-03-01), Kosswig
patent: 4262799 (1981-04-01), Perrett
patent: 4643303 (1987-02-01), Arp et al.
patent: 4928917 (1990-05-01), Wolf
Aesculap AG
Lipsitz Barry R.
Thorton Krisanne M.
Warden Robert J.
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