US3603189A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Microtome with electrical drive
Assignee: Carl Zeiss AG
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Filing: 1969-05-14
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Granted: 1971-09-07
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Expires: 1989-05-14
Abstract
Abstract A microtome arrangement comprising a microtome knife, a preparation holder, and an electric motor for producing relative movement of the holder with respect to the knife to effect cutting of a preparation held in the holder includes a footoperated switch which controls energization and deenergization of the motor so as to free the hands of the operator. A safety switch provides for deenergization of the motor when a motordriven drive lever for the preparation holder becomes disengaged from the preparation holder and thus prevents damage to the microtome upon jamming or the like. An electromagnetically controlled brake is automatically operated upon deenergization of the motor.
Inventors
- 👤 Martin Stachl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:11
CPC Classifications
G; G03; G03B; G03B33/00; G01; G01N; G01N1/00; G01N1/02; G01N1/04; G01N1/06; G03B17/00; G03B17/02; G03B17/12; G03B27/00; G03B27/72; G03B27/73; G01N2001/065; G01N2001/066; G01N2001/068; G01N35/00; G01N2035/00178; G01N2035/00306; Y; Y10; Y10T; Y10T83/00; Y10T83/647; Y10T83/654; Y10T83/6563
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
91 words
A microtome arrangement comprising a movable preparation holder, a microtome knife, electrical drive means for causing movement of said preparation holder relative to said knife to effect cutting of a preparation held in said preparation holder, first and second sets of first and second switches for controlling said electrical drive means, first and second footboards for controlling the operation of said first and second sets of switches, and a selector switch for controlling the actuation of at least one of the first and second switches of the respective sets of switches.
Claim 2
Dependent Claim
91 words
A microtome arrangement comprising a movable preparation holder, a microtome knife, electrical drive means for causing movement of said preparation holder relative to said knife to effect cutting of a preparation held in said preparation holder, first and second sets of first and second switches for controlling said electrical drive means, first and second footboards for controlling the operation of said first and second sets of switches, and a selector switch for controlling the actuation of at least one of the first and second switches of the respective sets of switches.
Claim 3
Dependent Claim
57 words
A microtome arrangement as claimed in claim 1 wherein said first switch of said first set comprises a cut-in switch, said second switch of said first set comprises an upwardly acting switch, said first switch of said second set comprises a cut out switch and said second switch of said second set comprises a downwardly acting switch.
Claim 4
Dependent Claim
95 words
A microtome as claimed in claim 1 further comprising means for providing operation of said microtome in a single-cut mode, means for providing operation of said microtome in a continuous-operation mode, a selector switch for switching the operation of said microtome between said single-cut mode and said continuous-operation mode, means for providing operation of said microtome in a normal, full-stroke mode and means for providing operation of said microtome in a tapping or partial-stroke mode, and a second selector switch for switching the operation of said microtome between said full-stroke mode and said partial-stroke mode.
Claim 5
Dependent Claim
43 words
A microtome as claimed in claim 1 further comprising means for housing said first and second footboards and said first and second sets of switches in a single portable unit and a coupling cable for connecting said unit to said electrical drive means.
References Cited (Backward Citations)
US2927505A
Cited
SU148549A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-09-06 | 1975-03-08 | 1975-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-06 | 1979-03-08 | 1979-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-06 | 1983-03-08 | 1983-09-07 | $7700.00 | Window Closed / Lapsed |