Patent US4137454A successfully refreshed from Google Patents.
US4230176A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Floating radiator tank top
Assignee: Caterpillar Inc
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Filing: 1978-04-24
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Granted: 1980-10-28
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Expires: 1998-04-24
Abstract
Abstract A unit core radiator is provided with support for the top tank and bottom tank so as to prevent the top and bottom tanks from vibrating relative to the support and at the same time to permit expansion and contraction of the core relative to the support. Mating members are carried by the top tank and the side channels and are urged against each other to form slip joints to allow limited movement between the tank top and the side channels in adjusting for temperature changes in the cooling fluid.
Inventors
- 👤 Donald R. Crews
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 09:14
CPC Classifications
F; F28; F28F; F28F9/00; F28F9/02; F28F9/0236; F28F9/0239; B; B60; B60K; B60K11/00; B60K11/02; B60K11/04; F28F9/001; F28F2275/00; F28F2275/08
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
156 words
A unit core radiator having a bottom tank, a top tank, and a heat exchange core extending between said bottom tank and said top tank, a support on which said bottom tank is carried, side channel supports attached to said support and extending upwardly adjacent said heat exchange core and projecting in overlapping relationship to said top tank, low friction means carried by said top tank in contact with said overlapping side support for supporting said top tank relative to said side channel supports, means encircling said side channel supports and said top tank and means on said encircling means for tightening said encircling means to urge said side supports into frictional engagement with said low friction means on said top tank whereby passing heated fluid through said radiator expands said heat exchange core to force the top tank and the low friction means on the top tank to move longitudinally relative to the side support.
Claim 2
Dependent Claim
156 words
A unit core radiator having a bottom tank, a top tank, and a heat exchange core extending between said bottom tank and said top tank, a support on which said bottom tank is carried, side channel supports attached to said support and extending upwardly adjacent said heat exchange core and projecting in overlapping relationship to said top tank, low friction means carried by said top tank in contact with said overlapping side support for supporting said top tank relative to said side channel supports, means encircling said side channel supports and said top tank and means on said encircling means for tightening said encircling means to urge said side supports into frictional engagement with said low friction means on said top tank whereby passing heated fluid through said radiator expands said heat exchange core to force the top tank and the low friction means on the top tank to move longitudinally relative to the side support.
Claim 3
Dependent Claim
78 words
In a unit core radiator as claimed in claim 1 wherein said low friction means carried by said top tank comprises a plurality of pads around the periphery thereof, and said side channel supports have a mating number of plates aligned with and in contact with said pads whereby said means for tightening said encircling means urges said plates into frictional contact with said pads to yieldably restrain movement of said top tank relative to said bottom tank.
Claim 4
Dependent Claim
54 words
In a unit core radiator as claimed in claim 1 wherein said low friction means carried by said top tank has a surface with a low coefficient of friction, and wherein said side support has plates aligned with said low friction means, said plates are coated on the contact surface with an antifriction material.
Claim 5
Dependent Claim
46 words
In a unit core radiator as claimed in claim 1 wherein said side channel supports embrace the edges of said core and wherein said encircling means is a strap and said means for tightening said strap is a threaded member connecting the ends of said strap.
Claim 6
Dependent Claim
109 words
In a unit core radiator having a bottom tank, a top tank, and a core extending between said bottom tank and said top tank, a support having a cradle and a pair of side channels attached to said cradle and extending in overlapping relationship to said top tank, in which the improvement comprises a slip joint means carried by said top tank and by said side channels, and means carried by said side channels for increasing the pressure in said slip joint means, whereby said slip joint means permits expansion and contraction of said core to move said top tank further away from or closer to said bottom tank.
Claim 7
Dependent Claim
109 words
In a unit core radiator having a bottom tank, a top tank, and a core extending between said bottom tank and said top tank, a support having a cradle and a pair of side channels attached to said cradle and extending in overlapping relationship to said top tank, in which the improvement comprises a slip joint means carried by said top tank and by said side channels, and means carried by said side channels for increasing the pressure in said slip joint means, whereby said slip joint means permits expansion and contraction of said core to move said top tank further away from or closer to said bottom tank.
Claim 8
Dependent Claim
93 words
In a unit core radiator as claimed in claim 5 wherein said slip joint means comprises a plurality of pads mounted around the periphery of the top tank and a like plurality of plates mounted on the inside of said overlapping portions of the side channels, each plate being aligned with one pad and in contact with said pad whereby said means for increasing the pressure in the slip joint means urges said plates into friction contact with said pads to yieldably restrain movement of said top tank relative to said bottom tank.
Claim 9
Dependent Claim
32 words
In a unit core radiator as claimed in claim 6 wherein said pads have a surface with a low coefficient of friction and wherein said plates are coated with an antifriction material.
Claim 10
Dependent Claim
43 words
In a unit core radiator as claimed in claim 5 wherein said side channel supports embrace the edges of said core and wherein said means for increasing the pressure is a strap which has a threaded member connecting the ends of said strap.
References Cited (Backward Citations)
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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) | 1983-10-28 | 1984-04-28 | 1984-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-10-28 | 1988-04-28 | 1988-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-10-28 | 1992-04-28 | 1992-10-28 | $7700.00 | Window Closed / Lapsed |