US5420469A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Brush air seal
Assignee: Cummins Powergen IP Inc
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Filing: 1993-10-25
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Granted: 1995-05-30
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Expires: 2013-10-25
Abstract
Abstract A generator engine set includes a brush partition for separating a space defined between an air blower housing and an enclosure into two areas so that an air flow from one area to the other area is substantially prohibited. The brush partition includes a flexible bristle portion and a rigid spline portion. The spline portion is retained in a receiving member on an outer surface of the air blower housing by a clip. The bristle portion extends toward the enclosure and engages an inner surface of the enclosure. Accordingly, a warmed air flow is prohibited from recirculating back into cooling air inlets.
Inventors
- 👤 Thomas A. Schmidt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:19
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/02; F16J15/021; F16J15/022; F16J15/024; F16J15/025; F02; F02B; F02B63/00; F02B63/04; F02B77/00; F02B77/11; F02B77/13; F16J15/16; F16J15/32; F16J15/3284; F16J15/3288; F02B63/044
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
66 words
A generator/engine set including a generator and an engine enclosed by an enclosure, the generator/engine set further comprising: a space separating the generator/engine from the enclosure; and brush means for separating the space between the generator/engine and the enclosure into two areas so that the air flow from one area to the other is substantially prohibited whereby a temperature differential is maintained between the two areas.
Claim 2
Dependent Claim
66 words
A generator/engine set including a generator and an engine enclosed by an enclosure, the generator/engine set further comprising: a space separating the generator/engine from the enclosure; and brush means for separating the space between the generator/engine and the enclosure into two areas so that the air flow from one area to the other is substantially prohibited whereby a temperature differential is maintained between the two areas.
Claim 3
Dependent Claim
62 words
A generator/engine set in accordance with claim 1, wherein the brush means comprises: a brush having a spline portion and a bristle portion; means for attaching the spline portion of the brush on an outer surface of the generator/engine; and the bristle portion extending into the space defined between the generator/engine and the enclosure, and engaging an inner surface of the enclosure.
Claim 4
Dependent Claim
28 words
A generator/engine set in accordance with claim 2, wherein the brush includes at least two portions abutting ends so as to surround the outer surface of the generator/engine.
Claim 5
Dependent Claim
35 words
A generator/engine set in accordance with claim 2, wherein the bristles of the bristle portion loop around an elongated member, and the spline portion further comprising means for retaining the bristles about the elongated member.
Claim 6
Dependent Claim
22 words
A generator/engine set in accordance with claim 2, wherein the attaching means is integrally molded with the outer surface of the generator/engine.
Claim 7
Dependent Claim
24 words
A generator/engine set in accordance with claim 5, wherein the clip means is obliquely oriented, the brush in the attaching means being similarly oriented.
Claim 8
Dependent Claim
41 words
A generator/engine set in accordance with claim 2, wherein the attaching means includes clip means for retaining the spline portion of the brush, a space defined in the clip means receiving the spline portion of the brush in an interference fit.
Claim 9
Dependent Claim
40 words
A generator/engine set in accordance with claim 2, wherein the bristle portion is bent by engagement with the inner surface of the enclosure such that the bristle portion engages the inner surface along a longitudinal extent of the bristle portion.
Claim 10
Dependent Claim
36 words
A generator/engine set in accordance with claim 2, wherein a length of the bristle portion is not less than the space, which is defined between the generator/engine and the enclosure, at a corner of the enclosure.
Claim 11
Dependent Claim
24 words
A generator/engine set in accordance with claim 2, wherein the bristles of the bristle portion are formed in multiple layers, the bristles being overlapped.
Claim 12
Independent Claim
120 words
A method for obstructing an air flow in a space defined between a generator/engine and an enclosure which encloses the generator/engine, comprising the steps of: providing a brush having a spline portion and a bristle portion; providing a plurality of recesses on an outer surface of the generator/engine for receiving the spline portion of the brush; retaining the spline portion of the brush in the recesses; and enclosing the generator/engine with the enclosure such that the bristle portion of the brush engages with an inner surface of the enclosure so as to form an obstruction separating the space surrounding the generator/engine into two areas so that the air flow from one area to the other is prohibited by the brush.
Claim 13
Independent Claim
120 words
A method for obstructing an air flow in a space defined between a generator/engine and an enclosure which encloses the generator/engine, comprising the steps of: providing a brush having a spline portion and a bristle portion; providing a plurality of recesses on an outer surface of the generator/engine for receiving the spline portion of the brush; retaining the spline portion of the brush in the recesses; and enclosing the generator/engine with the enclosure such that the bristle portion of the brush engages with an inner surface of the enclosure so as to form an obstruction separating the space surrounding the generator/engine into two areas so that the air flow from one area to the other is prohibited by the brush.
Claim 14
Dependent Claim
54 words
A generator/engine set including a generator and an engine enclosed by an enclosure, the generator/engine set comprising: a space separating the generator/engine from the enclosure; and a brush separating the space between the generator/engine and the enclosure into two areas so that the air flow from one area to the other is substantially prohibited.
Claim 15
Dependent Claim
54 words
A generator/engine set including a generator and an engine enclosed by an enclosure, the generator/engine set comprising: a space separating the generator/engine from the enclosure; and a brush separating the space between the generator/engine and the enclosure into two areas so that the air flow from one area to the other is substantially prohibited.
Claim 16
Dependent Claim
65 words
A generator/engine set in accordance with claim 12, wherein the brush includes a spline portion and a bristle portion, the generator/engine set further comprises a plurality of recesses for receiving the spline portion of the brush on an outer surface of the generator/engine, the bristle portion extending into the space defined between the generator/engine and the enclosure and engaging an inner surface of the enclosure.
Claim 17
Dependent Claim
27 words
A generator/engine set in accordance with claim 13, wherein each of the recesses has a clip portion, so that the spline portion is retained in the recesses.
Claim 18
Dependent Claim
63 words
An engine assembly including an engine enclosed by an enclosure, the engine assembly further comprising: a space separating the engine from the enclosure; and brush means for separating the space between the engine and the enclosure into two areas so that the air flow from one area to the other is substantially prohibited whereby a temperature differential is maintained between the two areas.
Claim 19
Dependent Claim
63 words
An engine assembly including an engine enclosed by an enclosure, the engine assembly further comprising: a space separating the engine from the enclosure; and brush means for separating the space between the engine and the enclosure into two areas so that the air flow from one area to the other is substantially prohibited whereby a temperature differential is maintained between the two areas.
Claim 20
Dependent Claim
62 words
An engine assembly in accordance with claim 15, wherein the brush means comprises: a brush having a spline portion and a bristle portion; means for attaching the spline portion of the brush on an outer surface of the engine; and the bristle portion extending into the space defined between the engine and the enclosure, and engaging an inner surface of the enclosure.
Claim 21
Dependent Claim
63 words
A generator set including a generator enclosed by an enclosure, the generator set further comprising: a space separating the generator from the enclosure; and brush means for separating the space between the generator and the enclosure into two areas so that the air flow from one area to the other is substantially prohibited whereby a temperature differential is maintained between the two areas.
Claim 22
Dependent Claim
63 words
A generator set including a generator enclosed by an enclosure, the generator set further comprising: a space separating the generator from the enclosure; and brush means for separating the space between the generator and the enclosure into two areas so that the air flow from one area to the other is substantially prohibited whereby a temperature differential is maintained between the two areas.
Claim 23
Dependent Claim
62 words
A generator set in accordance with claim 17, wherein the brush means comprises: a brush having a spline portion and a bristle portion; means for attaching the spline portion of the brush on an outer surface of the generator; and the bristle portion extending into the space defined between the generator and the enclosure, and engaging an inner surface of the enclosure.
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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) | 1998-05-29 | 1998-11-28 | 1999-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-05-29 | 2002-11-28 | 2003-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-05-29 | 2006-11-28 | 2007-05-30 | $7700.00 | Window Closed / Lapsed |