US4349132A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Developer dispensing apparatus
Assignee: Pitney Bowes Inc
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Filing: 1981-06-17
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Granted: 1982-09-14
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Expires: 2001-06-17
Abstract
Abstract A development powder dispensing apparatus that is in the form of a carousel. The apparatus has a generally cylindrical configuration that is divided into a number of chambers such that the development powder toner within each chamber may be supplied individually to a magnetic brush unit. Because of the separation of the toner into chambers, no toner compression is experienced even though large amounts of toner may be stored.
Inventors
- 👤 Paul J. Macaluso
- 👤 James E. Genthe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 06:51
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/06; G03G15/08; G03G15/0822; G03G15/0865; G03G15/0867; G03G15/0868; G03G15/0877; Y; Y10; Y10S; Y10S222/00; Y10S222/01
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
115 words
A development powder dispensing apparatus for supplying powder to the sump of a magnetic brush unit comprising: a generally longitudinal, cylindrical housing having an opening therein, a spider received within said housing, spider having arms that separate the housing into individual chambers in cooperation with the walls of said housing, each of said chambers being of substantially equal volume, means for rotating said spider, means for attaching said dispensing apparatus to the sump of the magnetic brush unit with said opening forming a confluent relationship with said sump when so attached, said housing forming a closed structure after being attached to said sump and means for determining the presence of development powder in said chambers.
Claim 2
Dependent Claim
115 words
A development powder dispensing apparatus for supplying powder to the sump of a magnetic brush unit comprising: a generally longitudinal, cylindrical housing having an opening therein, a spider received within said housing, spider having arms that separate the housing into individual chambers in cooperation with the walls of said housing, each of said chambers being of substantially equal volume, means for rotating said spider, means for attaching said dispensing apparatus to the sump of the magnetic brush unit with said opening forming a confluent relationship with said sump when so attached, said housing forming a closed structure after being attached to said sump and means for determining the presence of development powder in said chambers.
Claim 3
Dependent Claim
12 words
The apparatus of claim 1 including means for selectively closing said opening.
Claim 4
Dependent Claim
82 words
A development powder dispensing apparatus for supplying powder to the sump of a magnetic brush unit comprising: a housing having an opening therein, means for attaching said housing to the sump in a confluent relationship, means forming a plurality of individual chambers of substantially equal volume within said housing, means for selectively moving said chambers past said opening, said housing forming a closed structure after being attached to said sump and means for determining the presence of development powder in said chambers.
Claim 5
Dependent Claim
82 words
A development powder dispensing apparatus for supplying powder to the sump of a magnetic brush unit comprising: a housing having an opening therein, means for attaching said housing to the sump in a confluent relationship, means forming a plurality of individual chambers of substantially equal volume within said housing, means for selectively moving said chambers past said opening, said housing forming a closed structure after being attached to said sump and means for determining the presence of development powder in said chambers.
Claim 6
Dependent Claim
12 words
The apparatus of claim 3 including means for selectively closing said opening.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-09-13 | 1986-03-15 | 1986-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-09-13 | 1990-03-15 | 1990-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-09-13 | 1994-03-15 | 1994-09-14 | $7700.00 | Window Closed / Lapsed |