Christopher L Grove

US Patent:

20200354902, Nov 12, 2020

Filed:

Nov 21, 2017

Appl. No.:

16/766000

Inventors:

- Eskilstuna, SE
Christopher Grove - Fayetteville PA, US

International Classification:

E01C 19/28
B06B 1/16
E02D 3/074
E01C 21/00
F16C 19/38

Abstract:

A vibration assembly for a surface compactor machine includes a support subassembly connected to the compacting surface of the surface compactor machine. A primary eccentric shaft is disposed around a secondary eccentric shaft, with the primary and secondary eccentric shafts both rotatable about a common axis of rotation. One or more of primary bearing subassemblies is disposed between the primary eccentric shaft and the support subassembly for supporting the primary eccentric shaft during rotation of the primary eccentric shaft. One or more secondary bearing subassemblies is disposed between the secondary eccentric shaft and the primary eccentric shaft for supporting the secondary eccentric shaft during rotation of the primary eccentric shaft.

US Patent:

20180171567, Jun 21, 2018

Filed:

Feb 13, 2018

Appl. No.:

15/895005

Inventors:

- Eskilstuna, SE
Christopher Grove - Fayetteville PA, US

Assignee:

Volvo Construction Equipment AB - Eskilstuna

International Classification:

E01C 19/28
E01C 19/38
F16F 15/22
F16C 3/20

Abstract:

A vibratory compactor is described that includes a drum, a frame supporting the drum, an eccentric shaft configured to be rotated by a vibration motor, and a primary eccentric weight attached to the eccentric shaft inside the drum. At least one active isolation eccentric weight is located outside the drum so that when the eccentric shaft is rotated, a phase of a vibration generated by the at least one active isolation eccentric weight is substantially opposite to that of a vibration generated by the primary eccentric weight.