US3784183A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Holding and smoke removal system for a laser cutter
Assignee: Raytheon Co
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Filing: 1971-09-27
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Granted: 1974-01-08
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Expires: 1991-09-27
Abstract
Abstract To remove combustion by-products and to secure fabric being cut, the cutting area of a laser fabric cutter is enclosed in a hood through which air flows in a stream, first over and then under the enclosed air-permeable cutting surface on which the cloth is supported.
Inventors
- 👤 R Castro
- 👤 E Toscano
- 👤 F Viosca
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:20
CPC Classifications
B; B26; B26D; B26D7/00; B26D7/18; B26D7/1845; B26D7/1854; B08; B08B; B08B15/00; B23; B23K; B23K26/00; B23K26/14; B23K26/142; B23K26/1435; B23K26/1438; B23K26/1462; B23Q; B23Q11/00; B23Q11/0042; B23Q11/0046; B26D7/01; B26D7/018; B08B2215/00; B08B2215/006; B26D7/20; B26D2007/208
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
149 words
An airflow control system for holding material on top of a portion of an air-permeable elongate support surface comprising: a. a chamber extending along and enclosing said support surface so as to define enclosed spaces above and below said surface, said chamber having 1. an inlet extending along one edge of, said support surface in communication with the space above said surface; 2. an outlet below the level of said support surFace; and 3. an airpath around the opposite edge of said support surface within said chamber; and b. means for pulling air through said outlet so as to cause air to enter through said inlet, to travel across and above said support surface, down around its said opposite edge, back under said support surface, and to exit through said outlet, causing a net air pressure to be exerted upon said material against the top of said support surface.
Claim 2
Dependent Claim
149 words
An airflow control system for holding material on top of a portion of an air-permeable elongate support surface comprising: a. a chamber extending along and enclosing said support surface so as to define enclosed spaces above and below said surface, said chamber having 1. an inlet extending along one edge of, said support surface in communication with the space above said surface; 2. an outlet below the level of said support surFace; and 3. an airpath around the opposite edge of said support surface within said chamber; and b. means for pulling air through said outlet so as to cause air to enter through said inlet, to travel across and above said support surface, down around its said opposite edge, back under said support surface, and to exit through said outlet, causing a net air pressure to be exerted upon said material against the top of said support surface.
Claim 3
Dependent Claim
10 words
an outlet below the level of said support surFace; and
Claim 4
Dependent Claim
10 words
an outlet below the level of said support surFace; and
Claim 5
Dependent Claim
16 words
an outlet below the level of said support surface near said one edge but sealed therefrom;
Claim 6
Dependent Claim
16 words
an outlet below the level of said support surface near said one edge but sealed therefrom;
Claim 7
Dependent Claim
121 words
An airflow control system for holding material on top of a portion of a rectangular air-permeable elongate support surface comprising: a. means including a chamber around said support surface defining an enclosed air path including an initial region above said support surface portion and a terminal region below said support surface portion interconnected within said chamber by an intermediate region extending between them along one edge of said rectangular support surface portion; and b. means for pulling a stream of air to flow transversely across said support surface along said path through said initial and terminal regions successively, whereby material laid on top of said support surface portion is held against it by the air pressure differential created by said airstream.
Claim 8
Dependent Claim
121 words
An airflow control system for holding material on top of a portion of a rectangular air-permeable elongate support surface comprising: a. means including a chamber around said support surface defining an enclosed air path including an initial region above said support surface portion and a terminal region below said support surface portion interconnected within said chamber by an intermediate region extending between them along one edge of said rectangular support surface portion; and b. means for pulling a stream of air to flow transversely across said support surface along said path through said initial and terminal regions successively, whereby material laid on top of said support surface portion is held against it by the air pressure differential created by said airstream.
Claim 9
Dependent Claim
91 words
The system of claim 2 characterized further in that said means defining an enclosed airpath includes; a. an inlet next to an edge of said support surface portion which is opposite said one edge, said inlet communicating with said initial region; and b. an outlet below the level of said support surface and next to an edge connecting said one and opposite edges and also characterized further in that said means for forcing a stream of air to flow includes means for establishing pressure drop between said inlet and said outlet.
Claim 10
Dependent Claim
17 words
an enclosed air path around the opposite edge of said support surface between said enclosed spaces; and
Claim 11
Dependent Claim
17 words
an enclosed air path around the opposite edge of said support surface between said enclosed spaces; and
Claim 12
Dependent Claim
75 words
an airpath around the opposite edge of said support surface within said chamber; and b. means for pulling air through said outlet so as to cause air to enter through said inlet, to travel across and above said support surface, down around its said opposite edge, back under said support surface, and to exit through said outlet, causing a net air pressure to be exerted upon said material against the top of said support surface.
Claim 13
Dependent Claim
75 words
an airpath around the opposite edge of said support surface within said chamber; and b. means for pulling air through said outlet so as to cause air to enter through said inlet, to travel across and above said support surface, down around its said opposite edge, back under said support surface, and to exit through said outlet, causing a net air pressure to be exerted upon said material against the top of said support surface.
Claim 14
Dependent Claim
127 words
a set of baffles extending below, and slightly spaced from, said support surface, said baffles extending from the vicinity of said opposite edge toward said one edge and curving toward said outlet so as to create a controlled air path underneath said surface which is at least partially transverse to the longitudinal dimension of said surface; and b. means for pulling air through said outlet, whereby air is caused to enter through said inlet to travel across and above said support surface, down around its said opposite edge through said enclosed air path back under said support surface through said controlled air path and to exit through said outlet, causing a net air pressure to be exerted upon said material against the top of said support surface.
Claim 15
Dependent Claim
127 words
a set of baffles extending below, and slightly spaced from, said support surface, said baffles extending from the vicinity of said opposite edge toward said one edge and curving toward said outlet so as to create a controlled air path underneath said surface which is at least partially transverse to the longitudinal dimension of said surface; and b. means for pulling air through said outlet, whereby air is caused to enter through said inlet to travel across and above said support surface, down around its said opposite edge through said enclosed air path back under said support surface through said controlled air path and to exit through said outlet, causing a net air pressure to be exerted upon said material against the top of said support surface.
Claim 16
Dependent Claim
23 words
The system claim 3 characterized further in that said means for maintaining a pressure drop includes means for drawing air from said outlet.
Claim 17
Dependent Claim
44 words
The system of claim 4 characterized further in that said means defining an enclosed airpath includes an inlet at said intermediate region for admitting a variable amount of air into said terminal airpath region thereby regulating the air pressure differential exerted against said material.
Claim 18
Dependent Claim
66 words
An airflow control system for holding material on top of a portion of an air permeable elongate support surface while said material is being severed by a beam of coherent radiation and for removing smoke and debris generated during said severing comprising: a. a chamber extending along, and enclosing, said support surface so as to define enclosed spaces above and below said surface, said chamber including
Claim 19
Dependent Claim
66 words
An airflow control system for holding material on top of a portion of an air permeable elongate support surface while said material is being severed by a beam of coherent radiation and for removing smoke and debris generated during said severing comprising: a. a chamber extending along, and enclosing, said support surface so as to define enclosed spaces above and below said surface, said chamber including
References Cited (Backward Citations)
US3096162A
Cited
US3681853A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-01-07 | 1977-07-09 | 1978-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-07 | 1981-07-09 | 1982-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-07 | 1985-07-09 | 1986-01-08 | $7700.00 | Window Closed / Lapsed |