Patent US4505461A successfully refreshed from Google Patents.
US4505461A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid-filled engine mount device
Assignee: Nissan Motor Co Ltd
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Filing: 1981-12-02
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Granted: 1985-03-19
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Expires: 2001-12-02
Abstract
Abstract An engine mount device comprising first and second base plate members which are spaced from each other; an elastic block securely interposed between the first and second base plate members and formed with a cavity; a partition wall member connected to the first base plate member and including a projecting section which projects into and is located within the elastic block cavity, the partition wall member defining within the elastic block cavity a fluid chamber to be filled with a fluid and being formed with an orifice; and a diaphragm member connected to the partition wall member and including a projecting section which projects into and is located within the elastic block cavity, said diaphragm member defining between it and the partition wall member an auxiliary chamber which communicates with the fluid chamber through the partition wall member orifice, a major part of the auxiliary chamber being located with the elastic block cavity, thereby saving the amount of the fluid used in the device.
Inventors
- 👤 Toshihiko Kakimoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:14
CPC Classifications
F; F16; F16F; F16F13/00; F16F13/04; F16F13/06; F16F13/08; F16F13/10; F16F13/103
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
217 words
An engine mount device comprising: first and second base plate members which are spaced from each other; a block made of elastic material securely interposed between said first and second base plate members and formed with a cavity; a partition wall member connected to said first base plate member and including a projecting section which projects into and is located within said cavity of said elastic block, said partition wall member defining within said cavity of said elastic block a fluid chamber to be filled with a fluid, said partition wall member being formed with an orifice; and a diaphragm member connected to said partition wall member and including a projecting section which projects into and is located within said cavity of said elastic block, said diaphragm member further including a peripheral section at which said diaphragm member is connected to said partition wall member, said diaphragm member defining between it and said partition wall member an auxiliary chamber which communicates with said fluid chamber through said partition wall orifice, a major part of said auxiliary chamber being located within said cavity of said elastic block; and said projecting section of said diaphragm member having a generally spherically projecting diaphragm section which is projectable in opposite directions with respect to the peripheral section of said diaphragm member.
Claim 2
Dependent Claim
217 words
An engine mount device comprising: first and second base plate members which are spaced from each other; a block made of elastic material securely interposed between said first and second base plate members and formed with a cavity; a partition wall member connected to said first base plate member and including a projecting section which projects into and is located within said cavity of said elastic block, said partition wall member defining within said cavity of said elastic block a fluid chamber to be filled with a fluid, said partition wall member being formed with an orifice; and a diaphragm member connected to said partition wall member and including a projecting section which projects into and is located within said cavity of said elastic block, said diaphragm member further including a peripheral section at which said diaphragm member is connected to said partition wall member, said diaphragm member defining between it and said partition wall member an auxiliary chamber which communicates with said fluid chamber through said partition wall orifice, a major part of said auxiliary chamber being located within said cavity of said elastic block; and said projecting section of said diaphragm member having a generally spherically projecting diaphragm section which is projectable in opposite directions with respect to the peripheral section of said diaphragm member.
Claim 3
Dependent Claim
52 words
An engine mount device as claimed in claim 1, wherein said partition wall member has a peripheral section which is located on and in contact with said first base plate member, and said peripheral section of said diaphragm member is located on and in contact with said partition wall member peripheral section.
Claim 4
Dependent Claim
31 words
An engine mount device as claimed in claim 2, further comprising a cover member having a peripheral section which is located on and in contact with said diaphragm member peripheral section.
Claim 5
Dependent Claim
39 words
An engine mount device as claimed in claim 3, further comprising means for tightly keeping said partition wall member peripheral section and said diaphragm member peripheral section between said first base plate member and said cover member peripheral section.
Claim 6
Dependent Claim
27 words
An engine mount device as claimed in claim 1, wherein said first and second base plate members are connected to an engine and a vehicle body, respectively.
Claim 7
Dependent Claim
55 words
An engine mount device as claimed in claim 1, wherein said projecting section of said partition wall member includes a central section located within said cavity of said elastic block and spaced from said first base plate member, and a connecting section generally vertically extending and integrally connecting said central section with said peripheral section.
Claim 8
Dependent Claim
35 words
An engine mount device as claimed in claim 1, wherein said projecting section of said partition wall member defines a hollow thereby, wherein said projecting section of said diaphragm member is located within said hollow.
Claim 9
Dependent Claim
46 words
An engine mount device as claimed in claim 1, said elastic block is generally in the shape of a pipe, wherein said cavity being formed in the axial direction of said elastic block and having the same sectional area throughout the length of said elastic block.
Claim 10
Dependent Claim
41 words
An engine mount block as claimed in claim 1, wherein said first base plate member is formed with a central opening through which said projecting sections of said partition wall and diaphragm members project into said cavity of said elastic block.
Claim 11
Dependent Claim
69 words
An engine mount device as claimed in claim 1, wherein said means for tightly keeping includes a crimped section forming part of said cover member peripheral section, said crimped section engaging a peripheral section of said first base plate member so that said partition wall member peripheral section and said diaphragm member peripheral section are tightly clamped between said first base plate member and said cover member peripheral section.
References Cited (Backward Citations)
DE945899C
Cited
GB755808A
Cited
GB756416A
Cited
GB888908A
Cited
FR2117240A5
Cited
FR2349066A1
Cited
US4159091A
Cited
GB2033534A
Cited
JPS55149436A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-03-18 | 1988-09-17 | 1989-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-03-18 | 1992-09-17 | 1993-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-03-18 | 1996-09-17 | 1997-03-19 | $7700.00 | Window Closed / Lapsed |