US3898726A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Methods and device for positioning and assembling free-fitting parts
Assignee: Renault SA
•
Filing: 1973-06-18
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Granted: 1975-08-12
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Expires: 1993-06-18
Abstract
Abstract Method of positioning parts to be assembled and of which one part has a portion fitting freely in a corresponding hole of the other receiving part, which consists in sucking through the hole of said receiving part the aforesaid portion of said one part after having presented the two parts substantially in mutual alignment and in close proximity to each other. This method is carried out by using a device comprising a vacuum line carrying said one parts and a recessed plate carrying the other parts for presenting the parts as mentioned hereinabove. The invention is applicable more particularly to the fitting of valves in the cylinder-heads of valve-gear machines.
Inventors
- 👤 Jean Godart
- 👤 Guy Faure
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 20:02
CPC Classifications
B; B25; B25B; B25B27/00; B25B27/14; B25B27/24; Y; Y10; Y10S; Y10S29/00; Y10S29/044; Y10T; Y10T29/00; Y10T29/53; Y10T29/53552
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
97 words
A device for assembling valves in an internal combustion engine having hollow valve guides for receiving the stems of said valves comprising: positioning means for placing said valve stems in alignment with and in close proximity to one end of said valve guides including a valve support having collapsible holding members; and means for creating a vacuum at the other end of said hollow valve guides so that by said vacuum said stems are sucked into said hollow guides, said collapsible holding members being adapted to release said valves after said valves are sucked into said guides.
Claim 2
Independent Claim
97 words
A device for assembling valves in an internal combustion engine having hollow valve guides for receiving the stems of said valves comprising: positioning means for placing said valve stems in alignment with and in close proximity to one end of said valve guides including a valve support having collapsible holding members; and means for creating a vacuum at the other end of said hollow valve guides so that by said vacuum said stems are sucked into said hollow guides, said collapsible holding members being adapted to release said valves after said valves are sucked into said guides.
References Cited (Backward Citations)
US1314352A
Cited
US2858597A
Cited
US2842923A
Cited
US3299502A
Cited
US3417856A
Cited
US3479722A
Cited
US3667103A
Cited
US3698057A
Cited
US3736651A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-08-11 | 1979-02-10 | 1979-08-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-08-11 | 1983-02-10 | 1983-08-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-08-11 | 1987-02-10 | 1987-08-12 | $7700.00 | Window Closed / Lapsed |