Method of removing filter bag
DC
First Claim
Patent Images
1. A method for removing a filter bag from a filter housing, said bag including a flexible shape-retaining upper marginal ring portion and a filtering portion depending from said marginal portion, opposed handles connected to said marginal ring portion, said housing having an annular retaining part with said marginal ring portion being restrictively secured within said housing by said retaining part, said method of removing said bag from said housing includes the following steps:
- (a) Grasping both said handles in one hand;
(b) Urging said handles towards each other causing said marginal ring portion to flex at spaced locations thereby freeing a substantial portion of the marginal ring portion from said housing retaining part; and
(c) Withdrawing said bag out of said housing while still grasping said handles.
1 Assignment
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Abstract
A method of removing a self-retaining filter bag from a filter housing by flexing the upper margin of the bag to free the bag from the housing and then withdrawing the bag from the housing.
41 Citations
1 Claim
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1. A method for removing a filter bag from a filter housing, said bag including a flexible shape-retaining upper marginal ring portion and a filtering portion depending from said marginal portion, opposed handles connected to said marginal ring portion, said housing having an annular retaining part with said marginal ring portion being restrictively secured within said housing by said retaining part, said method of removing said bag from said housing includes the following steps:
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(a) Grasping both said handles in one hand; (b) Urging said handles towards each other causing said marginal ring portion to flex at spaced locations thereby freeing a substantial portion of the marginal ring portion from said housing retaining part; and (c) Withdrawing said bag out of said housing while still grasping said handles.
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Specification
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Litigation Data
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Current AssigneeFilter Specialists Incorporated Michigan City
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Original AssigneeFilter Specialists, Inc. (Danaher Corporation)
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InventorsAsterlin, Gunther E.
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Primary Examiner(s)Moon, Charlie T.
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Application NumberUS06/792,487Time in Patent Office581 DaysField of Search29/426.6, 29/451, 210/238, 210/232, 210/471, 210/470, 210/495, 210/480US Class Current29/426.6CPC Class CodesB01D 29/23 arranged for outward flow f...B01D 29/27 Filter bagsB01D 29/96 in which the filtering elem...Y10T 29/49824 to elastically deform work ...Y10T 29/49872 Confining elastic part in s...
