US4216845A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Circular food service conveyor
Assignee: Individual
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Filing: 1978-08-17
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Granted: 1980-08-12
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Expires: 1998-08-17
Abstract
Abstract A portable self-supporting food service conveyor has an elongated rectangular table top supported at each end by box-like pedestal enclosures and in the top of which there is a circular tracking slot within which is removably received an articulated-slat conveyor belt. Centrally supported above the table top are a pair of vertically-spaced, rectangular shelf members for the temporary storage of condiments and other food portions to be placed on removable trays carried by the conveyor belt. One of the support pedestals houses electric drive mechanism for sprocket drive from underneath of a sprocket chain comprising the articulated conveyor belt and projecting through the conveyor tracking slot. The other pedestal houses a refrigerating compressor and evaporator system associated with a cooling coil serving to refrigerate a portion of one of the food holding shelves.
Inventors
- 👤 Philip Tashman
- 👤 Vito M. Onori
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 02:16
CPC Classifications
A; A47; A47F; A47F10/00; A47F10/06; B; B65; B65G; B65G17/00; B65G17/22; B65G2201/00; B65G2201/02
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
323 words
A circular food service conveyor comprising, in combination, a table top, means for supporting said table top in vertically spaced relation above a floor, a continuous tracking slot in said table top and disposed in laterally spaced relation with respect to the outer peripheral edge thereof, a conveyor belt loop, said conveyor belt loop comprising a plurality of substantially rigid, flat, elongated slat members, means articulating said slat members in longitudinal edge to longitudinal edge relation in such manner that they are capable of arcuate movement in a common plane, said conveyor slat articulating means comprising central, downwardly-extending support means integrally formed with each of said slat members and a continuous drive chain interconnecting said slat support means, said downwardly-extending slat support means together with said continuous drive chain being receivable in said table top tracking slot so that the remainder of said articulated conveyor slat members will be seated upon the upper surface of said table top for circuitous movement therealong, rotary drive means engagable with said drive chain for moving said articulated conveyor belt along said table top tracking slot, said rotary drive means comprising a drive gear intermeshed with said drive chain, and means for releasably locking the conveyor slat connected to said drive chain portion intermeshed by said drive gear in said tracking slot to constrain said slat to tracking movement therealong, said releaseable conveyor slat locking means comprising a pair of laterally-outwardly-extending, opposed flange portions integrally formed with the downwardly-extending support means of each of said slat members, and a pair of lock bars moveable between a first position at which they overlie, respectively, upper surface portions of said outwardly-extending flange portions, and a second position whereat they are laterally removed from such overlying positions, resilient means normally constraining said locking bars in said first position, and manually controllable means for temporarily moving them to their second position to enable upward withdrawal and removal of said articulated conveyor.
Claim 2
Dependent Claim
323 words
A circular food service conveyor comprising, in combination, a table top, means for supporting said table top in vertically spaced relation above a floor, a continuous tracking slot in said table top and disposed in laterally spaced relation with respect to the outer peripheral edge thereof, a conveyor belt loop, said conveyor belt loop comprising a plurality of substantially rigid, flat, elongated slat members, means articulating said slat members in longitudinal edge to longitudinal edge relation in such manner that they are capable of arcuate movement in a common plane, said conveyor slat articulating means comprising central, downwardly-extending support means integrally formed with each of said slat members and a continuous drive chain interconnecting said slat support means, said downwardly-extending slat support means together with said continuous drive chain being receivable in said table top tracking slot so that the remainder of said articulated conveyor slat members will be seated upon the upper surface of said table top for circuitous movement therealong, rotary drive means engagable with said drive chain for moving said articulated conveyor belt along said table top tracking slot, said rotary drive means comprising a drive gear intermeshed with said drive chain, and means for releasably locking the conveyor slat connected to said drive chain portion intermeshed by said drive gear in said tracking slot to constrain said slat to tracking movement therealong, said releaseable conveyor slat locking means comprising a pair of laterally-outwardly-extending, opposed flange portions integrally formed with the downwardly-extending support means of each of said slat members, and a pair of lock bars moveable between a first position at which they overlie, respectively, upper surface portions of said outwardly-extending flange portions, and a second position whereat they are laterally removed from such overlying positions, resilient means normally constraining said locking bars in said first position, and manually controllable means for temporarily moving them to their second position to enable upward withdrawal and removal of said articulated conveyor.
Claim 3
Dependent Claim
59 words
A circular food service conveyor as defined in claim 1 wherein said table top is fabricated of sheet metal, and wherein marginal portions at each side of said tracking slot have secured thereto flat strips of synthetic plastic material having a low coefficient of sliding friction, upon which laterally opposed portions of said articulated conveyor belt seat and ride.
Claim 4
Dependent Claim
23 words
A circular food service conveyor as defined in claim 1 including means for automatically lubricating said drive chain from underneath said table top.
Claim 5
Dependent Claim
86 words
A circular food service conveyor as defined in claim 2 wherein said table top is of elongated, rectangular configuration, and said continuous tracking slot comprises straight runs along each side thereof and arcuate runs in the ends thereof, said continuous tracking slot comprising downturned side wall portions, said downwardly-extending support means of each of said slat members comprising a pair of laterally outwardly-extending, opposed flange portions integrally formed therewith, the outer edges of which are adapted to be slidingly guided by said downturned side wall portions.
Claim 6
Dependent Claim
50 words
A circular food service conveyor as defined in claim 4 wherein said downturned side wall portions of said arcuate runs of said tracking slot are covered with arcuate strips of synthetic plastic material having a low coefficient of sliding friction, against which the outer edge of said flange portions ride.
Claim 7
Dependent Claim
30 words
A circular food service conveyor as defined in claim 4 wherein said table top supporting means comprises a pair of box-like support pedestals, one supporting each end of said table.
Claim 8
Dependent Claim
34 words
A circular food service conveyor as defined in claim 6 including a pair of food support shelf members secured in vertically spaced relation above and along an elongated central portion of said table top.
Claim 9
Dependent Claim
56 words
A circular food service conveyor as defined in claim 7 wherein said rotary drive means comprises an electric motor housed in one of said support pedestals and having a rotary drive output means, a drive gear intermeshed with said drive chain, and drive belt means mechanically interconnecting said rotary drive output means with said drive gear.
Claim 10
Dependent Claim
40 words
A circular food service conveyor as defined in claim 8 wherein one of said food support shelf members comprises electrical refrigerant cooling coils, and a refrigerating system housed in the other of said pedestals and including said refrigerant cooling coils.
Claim 11
Dependent Claim
32 words
A circular food service conveyor as defined in claim 8 including a plurality of rectangular tray holders and means for movably supporting said tray holders in spaced relation upon said conveyor belt.
Claim 12
Dependent Claim
294 words
A circular food service conveyor comprising, in combination, a table top, means for supporting said table top in vertically spaced relation above a floor, a continuous tracking slot in said table top and disposed in laterally spaced relation with respect to the outer peripheral edge thereof, a conveyor belt loop, said conveyor belt loop comprising a plurality of substantially rigid, flat, elongated slat members, means articulating said slat members in longitudinal edge to longitudinal edge relation in such manner that they are capable of arcuate movement in a common plane, said conveyor slat articulating means comprising central, downwardly-extending support means integrally formed with each of said slat members and a continuous drive chain interconnecting said slat support means, said downwardly-extending slat support means together with said continuous drive chain being receivable in said table top tracking slot so that the remainder of said articulated conveyor slat members will be seated upon the upper surface of said table top for circuitous movement therealong, rotary drive means engagable with said drive chain for moving said articulated conveyor belt along said table top tracking slot, said rotary drive means comprising a drive gear intermeshed with said drive chain, and means for releasably locking the conveyor slat connected to said drive chain portion intermeshed by said drive gear in said tracking slot to constrain said slat to tracking movement therealong, means for automatically lubricating said drive chain from underneath said table top, said automatic lubricating means comprising an oil reservoir secured beneath said table top in straddling relation with respect to said tracking slot, a wick extending outwardly of the bottom of said reservoir, and an arcuate leaf spring supporting an outer end portion of said wick in arcuate abutting relation against the underside of said drive chain.
Claim 13
Dependent Claim
294 words
A circular food service conveyor comprising, in combination, a table top, means for supporting said table top in vertically spaced relation above a floor, a continuous tracking slot in said table top and disposed in laterally spaced relation with respect to the outer peripheral edge thereof, a conveyor belt loop, said conveyor belt loop comprising a plurality of substantially rigid, flat, elongated slat members, means articulating said slat members in longitudinal edge to longitudinal edge relation in such manner that they are capable of arcuate movement in a common plane, said conveyor slat articulating means comprising central, downwardly-extending support means integrally formed with each of said slat members and a continuous drive chain interconnecting said slat support means, said downwardly-extending slat support means together with said continuous drive chain being receivable in said table top tracking slot so that the remainder of said articulated conveyor slat members will be seated upon the upper surface of said table top for circuitous movement therealong, rotary drive means engagable with said drive chain for moving said articulated conveyor belt along said table top tracking slot, said rotary drive means comprising a drive gear intermeshed with said drive chain, and means for releasably locking the conveyor slat connected to said drive chain portion intermeshed by said drive gear in said tracking slot to constrain said slat to tracking movement therealong, means for automatically lubricating said drive chain from underneath said table top, said automatic lubricating means comprising an oil reservoir secured beneath said table top in straddling relation with respect to said tracking slot, a wick extending outwardly of the bottom of said reservoir, and an arcuate leaf spring supporting an outer end portion of said wick in arcuate abutting relation against the underside of said drive chain.
References Cited (Backward Citations)
US2037815A
Cited
US3788455A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-08-12 | 1984-02-11 | 1984-08-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-08-12 | 1988-02-11 | 1988-08-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-08-12 | 1992-02-11 | 1992-08-12 | $7700.00 | Window Closed / Lapsed |