Patent US4686868A successfully refreshed from Google Patents.
US4686868A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Soundproofed gear box
Assignee: BHS Bayerische Berg Hutten und Salzwerke AG
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Filing: 1986-06-05
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Granted: 1987-08-18
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Expires: 2006-06-05
Abstract
Abstract A soundproofed gear box, in particular a toothed wheel gear box with moving mechanical parts connected with a housing over bearing carriers, whereby the housing is provided with mounting feet. The bearing carrier (5, 6) is only connected with the area of the housing remote from the mounting feet (20).
Inventors
- 👤 Gunther Heidrich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:46
CPC Classifications
F; F16; F16H; F16H57/00; F16H57/0006; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19642; Y10T74/19679; Y10T74/21; Y10T74/2186
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
93 words
A soundproofed gear box, in particular a transmission gear box with moving mechanical parts, which are enclosed over a plurality of bearing carriers by a housing comprising a first portion which is provided with mounting feet, and a second portion mating with said first portion, said bearing carriers (5, 6, 5', 6', 25 and 26) being only connected with said second portion of said housing (9, 27) and are remote from the portion provided with said mounting feet (20), providing a lengthy sound transmission path from the bearing carriers to the mounting feet.
Claim 2
Dependent Claim
93 words
A soundproofed gear box, in particular a transmission gear box with moving mechanical parts, which are enclosed over a plurality of bearing carriers by a housing comprising a first portion which is provided with mounting feet, and a second portion mating with said first portion, said bearing carriers (5, 6, 5', 6', 25 and 26) being only connected with said second portion of said housing (9, 27) and are remote from the portion provided with said mounting feet (20), providing a lengthy sound transmission path from the bearing carriers to the mounting feet.
Claim 3
Dependent Claim
44 words
A gear set according to claim 1, wherein the housing further comprises a lower part provided with mounting feet and an upper part, characterized in that the bearing carrier (11) as an assembly is only attached to the upper part (9) of the housing.
Claim 4
Dependent Claim
64 words
A gear set according to claim 2, characterized in that the bearing carrier (11) comprises two longitudinal members arranged at a distance from one another, each said longitudinal member being divided into an upper and a lower part arranged one above the other (5, 6, and/or 5', 6'), the lower parts (5', 6') being connected to one another by means of cross members (22).
Claim 5
Dependent Claim
41 words
A gear set according to claim 2, characterized in that the bearing carrier comprises two longitudinal members arranged at a distance from one another (25, 26), said longitudinal members being individually attached only to the upper part (27) of the housing.
Claim 6
Dependent Claim
39 words
A gear set according to claim 2, characterized in that the bearing carrier assembly (11) and/or the bearing carrier parts (25, 26) are fastened to the upper part of the housing (9, 27) by means of screws (12, 34).
Claim 7
Dependent Claim
33 words
A gear set according to claim 5, characterized in that the upper part of the housing (9) is provided with recesses (21) open towards the outside in which the screws (12) are accomodated.
Claim 8
Dependent Claim
46 words
A gear set according to claim 1, characterized in that the housing (8, 9, 27 and 28) is provided with pairs of double walls (13, 14; 15, 15; 29, 30; and 31, 32) and that the internal cavities between them are provided with soundproofing material (17).
Claim 9
Dependent Claim
50 words
A gear set according to claim 2, characterized in that lock bolts (23) are provided in the lower part of the housing (8) provided with pairs of double walls, whereby the lock bolts engage in bores (24) in the bearing carrier assembly (11) and/or in the bearing carriers (25, 26).
References Cited (Backward Citations)
US1010976A
Cited
GB191996A
Cited
US2237958A
Cited
US2600912A
Cited
GB809371A
Cited
US2936591A
Cited
US3133451A
Cited
DE1226429B
Cited
US3348430A
Cited
DE2153258A1
Cited
DE2221804A1
Cited
US3897693A
Cited
US4100821A
Cited
US4122730A
Cited
DE2839938A1
Cited
DE3217180A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-08-17 | 1991-02-16 | 1991-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-08-17 | 1995-02-16 | 1995-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-08-17 | 1999-02-16 | 1999-08-18 | $7700.00 | Window Closed / Lapsed |