US4377639A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tissue culture device for mass cell culture
Assignee: University of Toledo
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Filing: 1982-01-18
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Granted: 1983-03-22
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Expires: 2002-01-18
Abstract
Abstract A multiplate, cell propagation device for use in tissue culture having an elongate enclosed vessel containing a plurality of parallel, spaced apart discs secured for rotation within the vessel. The device includes a cradle-like frame for holding the discs in place during rotation thereof, with the entire frame or individual discs being removable from the vessel without disturbing other discs. Means are provided on the frame for selectively holding the discs in place.
Inventors
- 👤 Harold H. Lee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 09:45
CPC Classifications
C; C12; C12M; C12M27/00; C12M27/02
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
183 words
A multiplate, cell propagation device for use in tissue cultures having a generally elongate enclosed vessel with two end caps and containing a plurality of spaced apart circular discs therein with means for rotating said discs within said vessel, the improvement comprising a cradle-like frame adapted for insertion within said enclosed vessel, said frame having spaced apart end plates secured opposite each other by axially extending rods spaced about the lower and lateral periphery of said end plates, a support shaft on the outer face of one of said end plates for engagement with a shaft bearing recess in the adjacent face of the cap on one end of said vessel and a drive shaft on the outer face of a sealed bearing aperture in the adjacent face of the cap on the other end of said vessel, said axially extending rods between said end plates of said frame being positioned at the lowermost and side portions of the periphery of said end plates to support said plurality of spaced apart discs therein and to permit removal thereof via the uppermost portions thereof.
Claim 2
Dependent Claim
183 words
A multiplate, cell propagation device for use in tissue cultures having a generally elongate enclosed vessel with two end caps and containing a plurality of spaced apart circular discs therein with means for rotating said discs within said vessel, the improvement comprising a cradle-like frame adapted for insertion within said enclosed vessel, said frame having spaced apart end plates secured opposite each other by axially extending rods spaced about the lower and lateral periphery of said end plates, a support shaft on the outer face of one of said end plates for engagement with a shaft bearing recess in the adjacent face of the cap on one end of said vessel and a drive shaft on the outer face of a sealed bearing aperture in the adjacent face of the cap on the other end of said vessel, said axially extending rods between said end plates of said frame being positioned at the lowermost and side portions of the periphery of said end plates to support said plurality of spaced apart discs therein and to permit removal thereof via the uppermost portions thereof.
Claim 3
Dependent Claim
31 words
The device of claim 1 wherein said axially extending rods include a plurality of radial notches to provide means for holding such discs in spaced apart position within said cradle-like frame.
Claim 4
Independent Claim
32 words
The device of either claims 1 or 2 wherein at least one of said end caps of said enclosed vessel is removable to facilitate removal of said cradle-like frame from said vessel.
Claim 5
Dependent Claim
57 words
The device of either claim 1 or 2 wherein said elongate enclosed vessel includes a removable lid in its upper periphery between said end caps, said removable lid extending substantially over the length of said vessel whereby said cradle-like frame and its associated discs may be removed from said vessel through the opening covered by said lid.
Claim 6
Dependent Claim
50 words
The device of claim 1 which further includes at least one axially extending rod extending the length of said cradle-like frame and movable from a first position overlying said discs at the uppermost periphery of said end plates to a second position along the side portion of said end plates.
Claim 7
Dependent Claim
40 words
The device of claim 1 which further includes an elongate extensible member removably secured to the uppermost portion of each end plate and extending under tension across the uppermost portion of said discs to thereby retain them within said cradle.
Claim 8
Dependent Claim
136 words
The device of claim 1 wherein said cradle-like frame includes a pair of spaced apart end plates, each having a central portion for supporting said support shaft and said drive shaft, respectively, and at least two radially extending fixed arms extending from said central portion downwardly and outwardly, an axially extending rod secured to the distal end of each fixed arm and extending between said end plates below said discs to provide support therefore, and a movable arm pivotally secured to said central portion and movable from an upper vertical position to a lateral horizontal position whereby, a movable axially extending rod secured to the distal ends of such movable arms may be selectively positioned above said discs to hold them within said cradle or laterally alongside said discs to permit removal thereof from said cradle.
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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) | 1986-03-21 | 1986-09-20 | 1987-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-03-21 | 1990-09-20 | 1991-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-03-21 | 1994-09-20 | 1995-03-22 | $7700.00 | Window Closed / Lapsed |