US3694078A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Quick release magnetic latch for copier exposure station
Assignee: Bell and Howell Co
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Filing: 1970-11-27
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Granted: 1972-09-26
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Expires: 1990-11-27
Abstract
Abstract A latch for a copier exposure station including laterally slideable ferromagnetic members that coact with underlying stationary ferromagnetic members. The latch finds particular utility in a duel-blanket exposure station.
Inventors
- 👤 George W Bookless
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:58
CPC Classifications
G; G03; G03B; G03B27/00; G03B27/32; G03B27/52; G03B27/62; G03B27/6207; G03B27/6221; G03B27/6228
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
51 words
In a copier exposure station the combination comprising: a transparent exposure window; first and second blankets overlying and co-extensive with said exposure window; and single handle means for selectively raising either the uppermost of said first and second blankets only or both of said blankets simultaneously by means of said handle.
Claim 2
Dependent Claim
51 words
In a copier exposure station the combination comprising: a transparent exposure window; first and second blankets overlying and co-extensive with said exposure window; and single handle means for selectively raising either the uppermost of said first and second blankets only or both of said blankets simultaneously by means of said handle.
Claim 3
Dependent Claim
23 words
The combination set forth in claim 1 wherein said first blanket is uppermost and opaque, and said second blanket is lowermost and transparent.
Claim 4
Dependent Claim
89 words
In an exposure station the combination comprising: a transparent exposure window; a transparent editing blanket for covering said window; an opaque cover for covering said editing blanket; means for pivotally attaching said editing blanket and said opaque cover to said station; handle means attached to said opaque cover; said handle means including latch means selectively engageable and disengageable with coacting means disposed on said editing blanket for permitting either said opaque cover alone or both said opaque cover and said editing blanket to be raised by said handle means.
Claim 5
Dependent Claim
89 words
In an exposure station the combination comprising: a transparent exposure window; a transparent editing blanket for covering said window; an opaque cover for covering said editing blanket; means for pivotally attaching said editing blanket and said opaque cover to said station; handle means attached to said opaque cover; said handle means including latch means selectively engageable and disengageable with coacting means disposed on said editing blanket for permitting either said opaque cover alone or both said opaque cover and said editing blanket to be raised by said handle means.
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) | 1975-09-26 | 1976-03-27 | 1976-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-09-26 | 1980-03-27 | 1980-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-09-26 | 1984-03-27 | 1984-09-26 | $7700.00 | Window Closed / Lapsed |