US4397663A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-contained disposable developer/absorber package
Assignee: Universal Developer Corp
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Filing: 1981-10-23
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Granted: 1983-08-09
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Expires: 2001-10-23
Abstract
Abstract A self-contained disposable package including a container of diazo copy developer liquid and an ammonia vapor absorber canister is disclosed for use with diazo type copy machines. The container of developer liquid and an absorber canister are adapted to be readily hooked into the supply and exhaust lines of the copy machine developer chamber and to the exhaust line of a machine degassing chamber. The absorber canister includes a quantity of ammonia vapor absorber material such as a mixture of excelsior and activated carbon, both treated with phosphoric acid, into which is extended a flow tube adapted to be connected to the degassing exhaust chamber with the exhaust flow directed to emanate from the lower region of the canister an flow upwardly through the absorber material and then out through openings in a top cap. The construction of the canister minimizes flow channelization through the absorber material.
Inventors
- 👤 Norman Michlin
- 👤 Edward J. Thies
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:05
CPC Classifications
B; B01; B01D; B01D53/00; B01D53/02; B01D53/04; B01D53/0407; B01D53/0415; G; G03; G03D; G03D7/00; B01D2253/00; B01D2253/10; B01D2253/102; B01D2257/00; B01D2257/40; B01D2257/406; B01D2259/00; B01D2259/40; B01D2259/40083; B01D2259/40084; B01D2259/45; B01D2259/455
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
148 words
An absorber canister for use in absorbing ammonia vapor from an air flow, comprising: a hollow canister body having sidewalls and a bottom joined to said sidewalls; a quantity of ammonia vapor absorbent material disposed within the interior of said canister body; a flow tube extending substantially through the length of said canister body and having an opening in one end thereof within said canister body through which air may flow into said interior whereby air flow containing ammonia vapor passes through said flow tube, exits from said opening and passes through said absorbent material; and means for mounting said flow tube within said canister body, said mounting means including- (1) a V-shaped support having an apex engaging said one end of said flow tube and supporting said one end in spaced relationship to said bottom, and (2) flap means secured to said support and overlying said bottom.
Claim 2
Dependent Claim
148 words
An absorber canister for use in absorbing ammonia vapor from an air flow, comprising: a hollow canister body having sidewalls and a bottom joined to said sidewalls; a quantity of ammonia vapor absorbent material disposed within the interior of said canister body; a flow tube extending substantially through the length of said canister body and having an opening in one end thereof within said canister body through which air may flow into said interior whereby air flow containing ammonia vapor passes through said flow tube, exits from said opening and passes through said absorbent material; and means for mounting said flow tube within said canister body, said mounting means including- (1) a V-shaped support having an apex engaging said one end of said flow tube and supporting said one end in spaced relationship to said bottom, and (2) flap means secured to said support and overlying said bottom.
Claim 3
Dependent Claim
27 words
The canister of claim 1, wherein said V-shaped support includes a cutout in said apex, one end of said flow tube being captively held in said cutout.
Claim 4
Dependent Claim
44 words
The canister of claim 1, wherein said support includes a pair of panels hingedly interconnected by a first fold line defining said apex, and said flap means includes a pair of flaps respectively hingedly connected to said panels by second and third fold lines.
Claim 5
Dependent Claim
45 words
The canister of claim 1, wherein at least two of said sidewalls of said canister opposes each other and said flap means includes a pair of flaps, said flaps respectively including edges abutting said two sidewalls respectively, whereby to prevent lateral movement of said support.
Claim 6
Dependent Claim
161 words
An absorber canister for use in absorbing ammonia vapor from an air flow comprising: a hollow canister body having opposing sidewalls and a bottom joined to said sidewalls; a quantity of ammonia vapor absorbent material disposed within the interior of said canister body; a flow tube extending into said canister body and having an opening in one end thereof within said canister body through which air may flow into said interior, whereby air flow containing ammonia vapor passes through said flow tube, exits from said opening and passes through said absorbent material; and means for mounting said flow tube within said canister body, said mounting means including a pair of cross members extending between and engaging said opposing sidewalls, said cross members being inclined to said sidewalls and defining a transversely extending V-shaped channel for supporting said one end of said flow tube in spaced relationship to said bottom and allowing escape of air flow from said opening into said interior.
Claim 7
Dependent Claim
161 words
An absorber canister for use in absorbing ammonia vapor from an air flow comprising: a hollow canister body having opposing sidewalls and a bottom joined to said sidewalls; a quantity of ammonia vapor absorbent material disposed within the interior of said canister body; a flow tube extending into said canister body and having an opening in one end thereof within said canister body through which air may flow into said interior, whereby air flow containing ammonia vapor passes through said flow tube, exits from said opening and passes through said absorbent material; and means for mounting said flow tube within said canister body, said mounting means including a pair of cross members extending between and engaging said opposing sidewalls, said cross members being inclined to said sidewalls and defining a transversely extending V-shaped channel for supporting said one end of said flow tube in spaced relationship to said bottom and allowing escape of air flow from said opening into said interior.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-08-08 | 1987-02-07 | 1987-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-08-08 | 1991-02-07 | 1991-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-08-08 | 1995-02-07 | 1995-08-09 | $7700.00 | Window Closed / Lapsed |