Metal working – Means to assemble or disassemble – Means to assemble electrical device
Patent
1986-05-13
1988-04-12
Goldberg, Howard N.
Metal working
Means to assemble or disassemble
Means to assemble electrical device
29700, 29709, 29759, 29761, 72385, B23P 1904
Patent
active
047365188
ABSTRACT:
A method and apparatus are disclosed for providing a crimp seal pleated filter assembly having a two piece housing with a filter media disposed within the housing and having a plurality of alternating pleats. The apparatus includes a first and second jig for supporting the housing halves and an odd number of at least three or more movable pleat forming blades on one side of the apparatus. The odd number of blades are movable through one of the supporting jigs with blade edges opposing the other supporting jig. The odd number of blades includes an independently movable center blade and a first pair of outer blades with opposing surfaces of adjacent blades defining a first plurality of pleat forming spaces. An even number of pleat forming blades are positioned with blade edges opposing the first plurality of pleat forming spaces and are spaced apart from and in alignment with the opposing pleat forming blades. The even number of pleat forming blades includes at least a pair of center blades which project through the other supporting jig during pleat formation and define a pleat forming space in which a first center pleat is formed. The blades and the jigs are moved toward one another in a predetermined sequence for the blades to form desired pleats within a filter media and for the jigs to urge the filter housing around the pleated filter media to crimp seal and encapsulate the media within the housing.
REFERENCES:
patent: 3315336 (1967-04-01), Parker et al.
patent: 3434400 (1969-03-01), Hochfeld
patent: 3631582 (1972-01-01), Lucas
patent: 3641803 (1972-02-01), Schuurbiers et al.
patent: 3851518 (1974-12-01), Spengler
patent: 4617122 (1986-10-01), Kruse et al.
Golden Patrick
Risch Daniel T.
Sabelko Steve W.
Donaldson & Company, Inc.
Goldberg Howard N.
Gorski Joseph M.
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