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US4669612A Expired / Lapsed US ⏱️ 0.0 years remaining

Disk processing cassette

Assignee: Empak Inc
•
Filing: 1985-02-20
•
Granted: 1987-06-02
•
Expires: 2005-02-20
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Abstract

Abstract Processing cassette for processing of hard rigid memory disks including a plurality of open supported opposing disk dividers for supporting a plurality of disks in alignment by the dividers of the cassette. The cassette is intended for use in automated robotic processing of the disks while in the cassette. The wafer cassette includes similar mirror image like opposed ends with deep wide downwardly inverted arches. The dividers are supported by two pairs of horizontal supports secured to the ends, providing for both upper and lower open process wash areas between each of the dividers for passage of liquids during automated robotic processing. Surfaces of the cassette are non-porous and extremely smooth. All edges and corners are radiused facilitating quick and effective drying of the cassette during robotic processing. On-center processing is provided for the disk processing cassette, where the carrier center of gravity is on-center for an axis of centrifugal disk processing machinery. Each of the dividers, in upper and lower cross sections, are geometrically configured for maximum passage and ease of entry of fluids during processing.

Inventors

  • 👤 Roger L. Mortensen

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-02 22:41
CPC Classifications
G; G11; G11B; G11B23/00; Y; Y10; Y10S; Y10S134/00; Y10S134/902; Y10S206/00; Y10S206/832; Y10S206/833

Claims Analysis

Total Claims: 7
Claim 1
Independent Claim 166 words
Processing cassette comprising: a. opposing mirror image sides including a large upper structural support, a mid-horizontal structural support, and a lower edge member, a plurality of inwardly extending lower and upper teeth from each of said sides, lower and upper wash slots between each of said teeth, said lower wash slots being wider in width than said upper wash slots separated by said mid-horizontal structural support, said lower teeth being more compressed in width than the upper teeth of said dividers, said teeth being radius vertexed, opposing inward and outward edges of each of said teeth being rounded back providing for fluid flow about each of said teeth, inward faces of said teeth being at angle providing for fluid flow therebetween, said angle being at about 54°; and, b. front and rear end opposing mirror image members, each of said members connected between said sides and including downwardly extending reversed arches, open space of each of said arches of a greater longitudinal length than horizontal width.
Claim 2
Dependent Claim 166 words
Processing cassette comprising: a. opposing mirror image sides including a large upper structural support, a mid-horizontal structural support, and a lower edge member, a plurality of inwardly extending lower and upper teeth from each of said sides, lower and upper wash slots between each of said teeth, said lower wash slots being wider in width than said upper wash slots separated by said mid-horizontal structural support, said lower teeth being more compressed in width than the upper teeth of said dividers, said teeth being radius vertexed, opposing inward and outward edges of each of said teeth being rounded back providing for fluid flow about each of said teeth, inward faces of said teeth being at angle providing for fluid flow therebetween, said angle being at about 54°; and, b. front and rear end opposing mirror image members, each of said members connected between said sides and including downwardly extending reversed arches, open space of each of said arches of a greater longitudinal length than horizontal width.
Claim 3
Dependent Claim 19 words
Cassette of claim 1 wherein all surfaces are rounded and smooth providing for rapid fluid flow and fluid drainage.
Claim 4
Dependent Claim 23 words
Cassette of claim 1 wherein each of said lower edge member extend downwardly beyond said front and rear end members providing for drainage.
Claim 5
Dependent Claim 49 words
Cassette of claim 1 including a vertical edge bar extending outwardly and parallel from each end of each of said front and rear end opposing mirror image members and extending partially downwardly in height to a mid point between said large upper structural support and said mid-horizontal structural support.
Claim 6
Dependent Claim 24 words
Cassette of claim 1 including an open recessed longitudinal area in each of said lower edge members providing for fluid flow and fluid drainage.
Claim 7
Dependent Claim 24 words
Cassette of claim 1 wherein said rounded back edges of each of said teeth providing for optimized fluid flow through each of said sides.

References Cited (Backward Citations)

US2555594A Cited
US2725143A Cited
US3923156A Cited
US3961877A Cited
US3961877B1 Cited
US4160504A Cited
US4471716A Cited
US4493418A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1990-06-01 1990-12-01 1991-06-02 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1994-06-01 1994-12-01 1995-06-02 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1998-06-01 1998-12-01 1999-06-02 $7700.00 Window Closed / Lapsed

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