Microtome
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Nov 11, 2003
Issued Date -
N/A
app pub date -
Nov 3, 2000
filing date -
Feb 18, 1998
priority date (Note) -
In Force
status (Latency Note)
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Abstract
An automatic microtome is disclosed which comprises a base, a knife-holder mounted on the base for supporting a microtome knife, a specimen holder mounted for longitudinal movement relative to the base towards and away from the knife-holder and also mounted for transverse movement relative to the knife holder for displacing a specimen held by the specimen holder relative to a knife mounted in the knife holder for cutting sections from such specimen. The knife holder is mounted directly on the base without provision for adjustment of the position of the knife holder on the base such as to vary the location of the knife edge in relation to said edge, and the specimen holder is designed to provide enhanced stability over a wide range of longitudinal positions the specimen holder. Thus, the specimen holder comprises a slide mounted for longitudinal movement in a bearing arrangement including first and second bearing elements at longitudinally spaced positions along the slide, and limiting transverse movement of the slide in one direction and a third bearing element at a longitudinal position intermediate the first-mentioned longitudinally spaced positions and biased towards the slide so as to urge the latter into engagement with said first and second bearing elements. The knife holder and base have cooperating arcuate bearing surfaces permitting angular movement of the knife holder relative to the base about the axis of curvature of the bearing surfaces with concomitant sliding movement of one of said arcuate surfaces over the other. A locating device is adjustably secured to the knife holder for cooperation with a datum provided on the base to ensure that with the locating device fixed to the knife holder the angular position of the knife holder on the base at which the locating device cooperates with the datum can readily be established.
First Claim
Family
- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
- SHANDON SCIENTIFIC LIMITED
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Kerrod, Ian | Hawarden, GB | 10 | 68 |
Temple, John | Chester, GB | 25 | 170 |
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Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
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