US5120919A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cabinet for a machine cooled by ventilation
Assignee: Bull SAS
•
Filing: 1989-12-26
•
Granted: 1992-06-09
•
Expires: 2009-12-26
Abstract
Abstract In order to replace a dirty filter in a cabinet, the clean filter is introduced in an upper slot of the cabinet until it comes in contact with the paddle of switch. The clean filter is thus superposed on the dirty filter, and the dirty filter is retracted through the lower slot of the cabinet. The replacement of the filter is done without stopping the machine.
Inventors
- 👤 Jean-Claude Bruges
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:46
CPC Classifications
H; H05; H05K; H05K7/00; H05K7/20; H05K7/20009; H05K7/20136; H05K7/20181
Claims Analysis
Total Claims: 35
Claim 1
Independent Claim
98 words
A cabinet for a computing machine, including a first air filter held in contact with a detection device, said detection device having a status representative of the presence of the filter in contact therewith, a second filter, means to superpose on the first air filter said second air filter, said second air filter being substantially like said first air filter for replacement thereof and means for causing contact of said second air filter with said detection device before removal of said first air filter, thereby maintaining the detection device in the status indicating that a filter is present.
Claim 2
Dependent Claim
98 words
A cabinet for a computing machine, including a first air filter held in contact with a detection device, said detection device having a status representative of the presence of the filter in contact therewith, a second filter, means to superpose on the first air filter said second air filter, said second air filter being substantially like said first air filter for replacement thereof and means for causing contact of said second air filter with said detection device before removal of said first air filter, thereby maintaining the detection device in the status indicating that a filter is present.
Claim 3
Dependent Claim
42 words
A cabinet according to claim 1 containing a first slot in a wall of the cabinet for the passage of the first filter, wherein the means for superpositioning the second filter comprises a second slot for the passage of the second filter.
Claim 4
Dependent Claim
16 words
A cabinet according to claim 2, wherein the second slot is placed above the first slot.
Claim 5
Dependent Claim
23 words
A cabinet according to claims 2 or 3, wherein the second slot is connected to guides for guiding introduction of the second filter.
Claim 6
Dependent Claim
26 words
A cabinet according to claim 1, wherein the first filter includes lateral edges having upper faces that serve as guides for placement of the second filter.
Claim 7
Dependent Claim
29 words
A cabinet according to claim 5, wherein the second filter has side tabs attached thereto and the guides comprise portions for guiding the side tabs of the second filter.
Claim 8
Dependent Claim
32 words
A cabinet according to claim 6 further comprising an upper flange disposed above the first slot, and in alignment with a bearing, said upper flange and said bearing having the same dimensions.
Claim 9
Dependent Claim
66 words
A cabinet according to claim 2 further comprising a member separating the first and second slots, said member having an indentation for superposing the second filter on the first filter and for wedging said second filter between said member and the detection device and for maintaining the second filter in a superposed on the first filter during removal of the first filter through the first slot.
Claim 10
Dependent Claim
12 words
A cabinet according to claim 1, wherein the filters are metal filters.
Claim 11
Dependent Claim
16 words
A cabinet according to claim 1, wherein the detection device comprises a switch with a paddle.
Claim 12
Dependent Claim
103 words
A cabinet for a computing machine, having an air filter held in contact with a detection device that assumes a state representative of the presence of the filter in contact therewith, a clean filter, means for receiving said clean filter for positioning in the cabinet adjacent said previously disposed filter and said clean filter positioned in contact with the detection device to maintain the detection device in its filter present state, and means for enabling removal of the previously disposed filter after the clean filter is positioned in contact with the detection device to maintain the detection device in its filter present state.
Claim 13
Dependent Claim
103 words
A cabinet for a computing machine, having an air filter held in contact with a detection device that assumes a state representative of the presence of the filter in contact therewith, a clean filter, means for receiving said clean filter for positioning in the cabinet adjacent said previously disposed filter and said clean filter positioned in contact with the detection device to maintain the detection device in its filter present state, and means for enabling removal of the previously disposed filter after the clean filter is positioned in contact with the detection device to maintain the detection device in its filter present state.
Claim 14
Dependent Claim
31 words
A cabinet according to claim 1, wherein said cabinet has a first slot for accommodating the removal of the previously disposed filter and a second slot for receiving the clean filter.
Claim 15
Dependent Claim
16 words
A cabinet according to claim 12, wherein the second slot is placed above the first slot.
Claim 16
Dependent Claim
22 words
A cabinet according to claim 13, further including guide means associated with the second slot for guiding introduction of the clean filter.
Claim 17
Dependent Claim
27 words
A cabinet according to claim 11, wherein the previously disposed filter includes lateral edges having upper faces that serve as guides for placement of the clean filter.
Claim 18
Dependent Claim
29 words
A cabinet according to claim 15, wherein the clean filter has side tabs attached thereto and the guides comprise portions for guiding the side tabs of the clean filter.
Claim 19
Dependent Claim
32 words
A cabinet according to claim 12, further comprising an upper flange disposed above the first slot, and in alignment with a bearing, said upper flange and said bearing having the same dimensions.
Claim 20
Dependent Claim
61 words
A cabinet according to claim 12 further comprising a member separating the first and second slots, said member having an indentation such that the clean filter will superpose itself on the previously disposed filter while being wedged between said member and the detection device and remain in a superposed position during removal of the previously disposed filter through the first slot.
Claim 21
Dependent Claim
12 words
A cabinet according to claim 11, wherein the filters are metal filters.
Claim 22
Dependent Claim
16 words
A cabinet according to claim 11, wherein the detection device comprises a switch with a paddle.
Claim 23
Independent Claim
111 words
A method of replacing filters in a cabinet of a computing machine comprising the steps of providing a filter present detector having a filter present state assumed when in contact with a filter, providing a first filter at the base of the cabinet in contact with said filter present detector for filtering air introduced through the base, inserting a second clean filter before removing said first filter when it becomes dirty, said second clean filter being inserted into the cabinet adjacent to said first filter and positioned in contact with said filter present detector to maintain the filter present detector in its filter present state, and subsequently removing said first filter.
Claim 24
Independent Claim
111 words
A method of replacing filters in a cabinet of a computing machine comprising the steps of providing a filter present detector having a filter present state assumed when in contact with a filter, providing a first filter at the base of the cabinet in contact with said filter present detector for filtering air introduced through the base, inserting a second clean filter before removing said first filter when it becomes dirty, said second clean filter being inserted into the cabinet adjacent to said first filter and positioned in contact with said filter present detector to maintain the filter present detector in its filter present state, and subsequently removing said first filter.
Claim 25
Dependent Claim
22 words
A method as set forth in claim 21, wherein the second clean filter is inserted in a position over the first filter.
Claim 26
Dependent Claim
91 words
A cabinet for a computing machine comprising: a filter detection device, a first air filter held in contact with said detection device which assumes a state representative of the presence of the filter in contact therewith, a second air filter, means for receiving said second air filter, substantially like said first air filter for replacement thereof, and for positioning said second air filter in the cabinet adjacent said first air filter, said means for receiving including a member supporting the second filter in superposed relative relation to the previously disposed filter.
Claim 27
Dependent Claim
91 words
A cabinet for a computing machine comprising: a filter detection device, a first air filter held in contact with said detection device which assumes a state representative of the presence of the filter in contact therewith, a second air filter, means for receiving said second air filter, substantially like said first air filter for replacement thereof, and for positioning said second air filter in the cabinet adjacent said first air filter, said means for receiving including a member supporting the second filter in superposed relative relation to the previously disposed filter.
Claim 28
Dependent Claim
25 words
A cabinet according to claim 23 wherein said second filter includes a member for wedging the second filter between said member and the detection device.
Claim 29
Dependent Claim
38 words
A cabinet according to claim 24 wherein said cabinet has a first slot in a wall thereof for the withdrawal of the first filter, and a second slot for the passage of the second filter into the cabinet.
Claim 30
Dependent Claim
22 words
A cabinet according to claim 25 further including guide means associated with the second slot for guiding introduction for the second filter.
Claim 31
Dependent Claim
28 words
A cabinet according to claim 23 wherein the first air filter includes lateral edges having upper faces that serve as guides for placement of the second air filter.
Claim 32
Dependent Claim
29 words
A cabinet according to claim 27 wherein the second filter has side tabs attached thereto and the guides comprise portions for guiding the side tabs of the second filter.
Claim 33
Dependent Claim
17 words
A cabinet according to claim 25 wherein said member is disposed between said first and second slots.
Claim 34
Dependent Claim
12 words
A cabinet according to claim 23 wherein the filters are metal filters.
Claim 35
Dependent Claim
16 words
A cabinet according to claim 23 wherein the detection device comprises a switch with a paddle.
References Cited (Backward Citations)
DE162960C
Cited
US3201772A
Cited
US3925710A
Cited
US3971877A
Cited
US4240072A
Cited
US4726825A
Cited
DE8621144U1
Cited
DE8714894U1
Cited
US4889542A
Cited
US4946480A
Cited
US4963170A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-06-09 | 1995-12-09 | 1996-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-06-09 | 1999-12-09 | 2000-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-06-09 | 2003-12-09 | 2004-06-09 | $7700.00 | Window Closed / Lapsed |