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US 4,315,817 AGranted
Vibrating surface apparatus
AssigneePopper Engineering Ltd.
InventorJakhin B. Popper
Life of this patent
Estimating the term…
Abstract
Vibrating surface apparatus comprising a base member, vibratory motion producing member, a first spring coupling the vibratory motion producing member to the base member; a first surface adapted to be vibrated; a second spring coupling said surface to the vibratory motion producing member; and a third spring coupling the surface to the base member.
Claims6
Vibratory surface apparatus comprising:
- a fixed base member;
- vibratory motion producing means vibrating axially along a vibratory axis;
- first spring means coupling said vibratory motion producing means to said base member;
- a first surface adapted to be vibrated along said vibratory axis;
- second spring means drivingly coupling said first surface to said vibratory motion producing means, said second spring means having a finite spring constant along said vibratory axis thereby permitting substantial differential motion between said vibratory motion producing means and said first surface along said vibratory axis;
- and
- third spring means coupling said first surface to said base member;
- the spring constants of said first, second and third spring means being selected such that substantially no vibrational forces are transmitted to said base member and such that said first, second and third spring means do not produce appreciable damping.
5 more elements
Driving apparatus for a vibrating system having a surface adapted to be vibrated and a fixed base comprising:
- vibratory motion producing means vibrating axially along a vibratory axis;
- first spring means coupling said vibratory motion producing means to said base;
- second spring means coupling said surface to be vibrated to said vibratory motion producing means for axial motion along said vibratory axis, said second spring means having a finite spring constant along said vibratory axis thereby permitting substantial differential motion between said vibratory motion producing means and said first surface along said vibratory axis;
- and
- third spring means drivingly coupling said first surface to said base member;
- the spring constants of said first, second and third spring means being selected such that substantially no vibrational forces are transmitted to said base member and such that said first, second and third spring means do not produce appreciable damping.
3 more elements
Dependencies are inferred from the claim text.