Patent US4127968A successfully refreshed from Google Patents.
US4127968A
Expired / Lapsed
US
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Debris-collecting assembly for sliding door track
Assignee: True Food Service Equipment Inc
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Filing: 1978-04-27
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Granted: 1978-12-05
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Expires: 1998-04-27
Abstract
Abstract A debris-collecting assembly for a sliding door track in which a door is slidably mounted in an elongate lower channel of a door frame for movement between open and closed positions, and a top-open pan is removably located in the channel, the pan being open at one end to receive debris swept along the channel when the door is in its open position, and to receive the door in its closed position. An elongate track is in the channel and slidably engages the door, the track being spaced from a closed channel end to provide a compartment, and the pan is removably located in the channel compartment with the open pan end facing toward the track. In a double door assembly a pair of channels are disposed in side-by-side relation with a door slidably mounted in each channel. A passage between the channels places the channels in communication. The pan is located in one channel with the open pan end disposed to receive debris swept along said other channel and through said passage when the door in said one channel is in the open position and the door in the said other channel is in the closed position.
Inventors
- 👤 James A. Trulaske
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 08:47
CPC Classifications
E; E06; E06B; E06B7/00; E06B7/28; E06B3/00; E06B3/32; E06B3/34; E06B3/42; E06B3/46; E06B3/4609
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
69 words
A debris-collecting assembly, comprising: (a) a door frame including an elongate lower channel, (b) a door slidably mounted in the channel for movement between open and closed positions, and (c) a top-open pan removably located in the channel, the pan being open at one end to receive debris swept along the channel when the door is in its open position, and to receive the door in its closed position.
Claim 2
Dependent Claim
69 words
A debris-collecting assembly, comprising: (a) a door frame including an elongate lower channel, (b) a door slidably mounted in the channel for movement between open and closed positions, and (c) a top-open pan removably located in the channel, the pan being open at one end to receive debris swept along the channel when the door is in its open position, and to receive the door in its closed position.
Claim 3
Dependent Claim
34 words
A debris-collecting assembly as defined in claim 1, in which: (d) the channel is open at the top, and (e) the pan is removable and replaceable in the channel through the open channel top.
Claim 4
Dependent Claim
60 words
A debris-collecting assembly as defined in claim 1, in which: (d) the channel has a bottom wall and a closed end, and (e) the pan includes a bottom wall, side walls, and an end wall, the pan being located with the bottom pan wall adjacent the channel bottom wall and with the pan end wall adjacent the closed channel end.
Claim 5
Dependent Claim
88 words
A debris-collecting assembly as defined in claim 1, in which: (d) the channel has a bottom wall, opposed side walls, and a closed end wall, the channel being open at the top, and (e) the pan includes a bottom wall adjacent the channel bottom wall, side walls adjacent the channel side walls, and an end wall adjacent the channel end wall, the pan being open at the top and at the opposite end, and the pan being removable and replaceable in the channel through the open channel top.
Claim 6
Dependent Claim
34 words
A debris-collecting assembly as defined in claim 1, in which: (d) an elongate track means is in the channel and slidably engages the door, the track means terminating short of the open pan end.
Claim 7
Dependent Claim
69 words
A debris-collecting assembly as defined in claim 1, in which: (d) the channel has a bottom wall and closed end, (e) an elongate track means is in the channel and slidably engages the door, the track means being spaced from the closed channel end to provide a compartment, and (f) the pan is removably located in the channel compartment with the open pan end facing toward the track means.
Claim 8
Dependent Claim
125 words
A debris-collecting assembly as defined in claim 1, in which: (d) the door frame includes a pair of elongate lower channels disposed in side-by-side relation, (e) a pair of doors are provided, one door being slidably mounted in each channel for movement between open and closed positions, (f) passage means is provided between the channels for placing the channels in communication, and (g) the top-open pan is removably located in one channel, the open pan end being disposed to receive debris swept along said one channel and to receive debris swept along said other channel and through said passage means when the door in said one channel is in the open position and the door in the said other channel is in the closed position.
Claim 9
Dependent Claim
33 words
A debris-collecting assembly as defined in claim 7, in which: (h) a partition is provided between the channels, and (i) the passage means is provided in the partition adjacent the open pan end.
Claim 10
Dependent Claim
123 words
A debris-collecting assembly as defined in claim 7, in which: (h) each channel has a bottom wall and a closed end wall, and being open at the top, (i) a partition is provided between the channels, (j) the pan includes a bottom wall adjacent the bottom wall of said one channel, side walls, one of which is adjacent the partition, and an end wall adjacent the closed end wall of said one channel, the pan being open at the top and at the opposite end, and the pan being removable and replaceable in the said one channel through the open top, and (k) the passage means is in the partition adjacent the open pan end and extends substantially to the channel bottom walls.
Claim 11
Dependent Claim
41 words
A debris-collecting assembly as defined in claim 9, in which: (l) the said one side wall of the pan is provided with an opening at the open pan end, the opening being substantially aligned with the passage means in the partition.
Claim 12
Dependent Claim
81 words
A debris-collecting assembly as defined in claim 10, in which: (m) an elongate track means is in each channel and slidably engages the door in the channel, the track means being spaced from the closed channel ends to provide compartments therebetween, (n) the pan is removably located in the compartment of said one channel with the open pan end facing toward the track means in said one channel, and (o) the passage means in the partition is located between the compartments.
References Cited (Backward Citations)
US3199156A
Cited
US3418755A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-12-04 | 1982-06-05 | 1982-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-12-04 | 1986-06-05 | 1986-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-12-04 | 1990-06-05 | 1990-12-05 | $7700.00 | Window Closed / Lapsed |