Spring devices – Fluid – Expansible-contractible chamber device
Patent
1987-08-17
1988-10-25
Butler, Douglas C.
Spring devices
Fluid
Expansible-contractible chamber device
175321, 267219, 267137, 2671412, 2671411, 464 20, 166319, F16F 918
Patent
active
047798521
ABSTRACT:
A vibration isolator and shock absorber system which provides excellent protection to sensors against the deleterious effects of shock and vibration even under severe drilling conditions is presented. The vibration isolator and shock absorber system is enclosed within an outer cage and an inner yoke. The cage is attached to the drill collar which takes the full impact of the shock and vibration due to drilling. The yoke supports the sensor. Conical disc springs (e.g. Belleville springs) or the like are stacked between the yoke and the cage; and are supported by pairs of upper and lower support rings. These rings fit together to compress the springs and to allow for axial displacement as well as providing damping. The pairs of support rings are supported, in turn, between upper and lower elastomeric isolator rings. The upper elastomeric isolator ring is keyed to the yoke and the cage. Fluid is allowed to move through the system via orifices in both the elastomeric isolators and the pairs of support rings. The size of the orifices in the support rings control the amount of damping within the system. The vibration isolator and shock absorber system of the present invention will dampen severe loads in the axial, lateral and torsional directions. The system utilizes the drilling fluid as the damping medium for viscous damping (e.g. forcing fluid through orifices in the support rings).
REFERENCES:
patent: 3782464 (1974-01-01), Quichaud et al.
patent: 3827491 (1974-08-01), Dinning
patent: 4171025 (1979-10-01), Bassinger
patent: 4387885 (1983-06-01), Bishop et al.
patent: 4439167 (1984-03-01), Bishop et al.
patent: 4630809 (1986-12-01), Duckworth
patent: 4732211 (1988-03-01), Haugen et al.
Butler Douglas C.
Teleco Oilfield Services Inc.
LandOfFree
Vibration isolator and shock absorber device with conical disc s does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Vibration isolator and shock absorber device with conical disc s, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Vibration isolator and shock absorber device with conical disc s will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2265046