US3722618A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sandwich deck construction
Assignee: Caterpillar Inc
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Filing: 1970-12-28
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Granted: 1973-03-27
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Expires: 1990-12-28
Abstract
Abstract A noise and dirt blocking deck construction for an earthmoving machine comprising two rigid layers separated by a layer of resilient material. Each layer comprises multiple sections joined at offset edges to eliminate sound and dirt transmission. Attachment means are used which reduce noise transmission and control deformation of the resilient elements of the construction.
Inventors
- 👤 Lees A Mc
- 👤 F Proksch
- 👤 M Butterfield
- 👤 R Hoerr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 04:31
CPC Classifications
B; B62; B62D; B62D33/00; B62D33/06; B62D33/0604
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
139 words
In an earthmoving machine having a support framework a noise attenuation construction comprising: a first layer means having a first plurality of plate means juxtaposed within a first plane, a second layer means having a second plurality of plate means juxtaposed within a second plane, a central layer means having a plurality of section means made of resilient sound-absorbing material and disposed between said first and second layer means, and means for attaching said first, second and central layer means to said support framework, said attaching means including bolt and nut means separated by spacer means which spacer means limits the distance between said first and second layer means to control the deformation of said central layer means and said attaching means, whereby noise transmission between said first and second layer means is attenuated by said central layer means.
Claim 2
Dependent Claim
139 words
In an earthmoving machine having a support framework a noise attenuation construction comprising: a first layer means having a first plurality of plate means juxtaposed within a first plane, a second layer means having a second plurality of plate means juxtaposed within a second plane, a central layer means having a plurality of section means made of resilient sound-absorbing material and disposed between said first and second layer means, and means for attaching said first, second and central layer means to said support framework, said attaching means including bolt and nut means separated by spacer means which spacer means limits the distance between said first and second layer means to control the deformation of said central layer means and said attaching means, whereby noise transmission between said first and second layer means is attenuated by said central layer means.
Claim 3
Dependent Claim
23 words
The invention of claim 1 wherein said first plurality of plate means are textured on one side thereof to provide a nonslip surface.
Claim 4
Dependent Claim
18 words
The invention of claim 1 wherein said plurality of resilient sound-absorbing section means are made from reclaimed rubber.
Claim 5
Dependent Claim
18 words
The invention of claim 1 wherein said first and second plurality of plate means are made from metal.
Claim 6
Dependent Claim
50 words
The invention of claim 1 wherein the juxtaposed plate means of said first aNd second layer means form seams along the lines of juxtaposition between said plate means and wherein said resilient section means overlay and seal off said seams to prevent the transmission of noise and dirt particles therethrough.
Claim 7
Dependent Claim
34 words
The invention of claim 1 wherein said attaching means includes resilient grommet sealing mans for the attenuation of noise transmission between the components of said attaching means, said layer means and said support framework.
Claim 8
Dependent Claim
35 words
The invention of claim 1 wherein said earthmoving machine has control elements which penetrate said nose attenuation construction and wherein said resilient section means contain narrow openings to accommodate and seal around said control elements.
Claim 9
Independent Claim
78 words
A method of assembling a multi-layered surface construction for an earthmoving machine which comprises the steps of; a. placing a first plurality of metal plates upon the supporting framework of said earthmoving machine b. placing a second plurality of resilient sections upon said first plurality of metal plates in offset relation thereto, and c. placing a third plurality of metal plates upon said second plurality of resilient sections in matching alignment with said first plurality of metal plates.
Claim 10
Independent Claim
78 words
A method of assembling a multi-layered surface construction for an earthmoving machine which comprises the steps of; a. placing a first plurality of metal plates upon the supporting framework of said earthmoving machine b. placing a second plurality of resilient sections upon said first plurality of metal plates in offset relation thereto, and c. placing a third plurality of metal plates upon said second plurality of resilient sections in matching alignment with said first plurality of metal plates.
Claim 11
Dependent Claim
55 words
The method of claim 9 further comprising the steps of; d. placing attachment means successively through said third plurality of plates, said second plurality of sections, said first plurality of plates and said supporting framework, and e. tightening said attachment means to rigidly connect said first, second and third plurality of elements to said framework.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-03-26 | 1976-09-25 | 1977-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-03-26 | 1980-09-25 | 1981-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-03-26 | 1984-09-25 | 1985-03-27 | $7700.00 | Window Closed / Lapsed |