Patent US4529255A successfully refreshed from Google Patents.
← Back to Patent Explorer
US4529255A Expired / Lapsed US ⏱️ 0.0 years remaining

Machine tool way damper

Assignee: Magus Intellectual Property GmbH
•
Filing: 1983-06-08
•
Granted: 1985-07-16
•
Expires: 2003-06-08
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract In a machine tool having cooperating first and second slides slidably with respect to one another, an improved way damper has a damper plate carried by the first slide in slidable engagement with the second slide, and the plate is retained so as to permit slight movement of the plate in a normal direction to the movement of the first and second slides. A sealed damping chamber is formed between the damper plate and the first slide, having a viscous medium within the chamber which effects squeeze film damping as the damper plate and first slide undergo relative vibratory motion. An alternate embodiment employs a visco-elastic medium in the damping chamber to effect damping.

Inventors

  • 👤 Tadeusz W. Piotrowski

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-07 06:53
CPC Classifications
F; F16; F16F; F16F15/00; F16F15/02; F16F15/023; B; B23; B23Q; B23Q11/00; B23Q11/0032

Claims Analysis

Total Claims: 9
Claim 1
Independent Claim 154 words
In a tool having first and second cooperating slides slidably movable with respect to one another, an improved way damper apparatus for damping vibrations, wherein the improvement comprises: (a) a damper plate carried by said first slide, said plate having anti-friction surface means in slidable engagement with said second slide; (b) means for relatively moving said plate and first slide in unison with respect to said second slide and for permitting reversing movement of said damper plate in a direction substantially normal to slide movement between said first and second slides while said slides are relatively moving; (c) means for defining a damping chamber between said damper plate and said first slide; and (d) a damping medium in said damping chamber, said means for defining a damping chamber being such that said damping medium in said chamber effectuates damping in the damping chamber as said damper plate and first slide undergo relative vibratory motion.
Claim 2
Dependent Claim 154 words
In a tool having first and second cooperating slides slidably movable with respect to one another, an improved way damper apparatus for damping vibrations, wherein the improvement comprises: (a) a damper plate carried by said first slide, said plate having anti-friction surface means in slidable engagement with said second slide; (b) means for relatively moving said plate and first slide in unison with respect to said second slide and for permitting reversing movement of said damper plate in a direction substantially normal to slide movement between said first and second slides while said slides are relatively moving; (c) means for defining a damping chamber between said damper plate and said first slide; and (d) a damping medium in said damping chamber, said means for defining a damping chamber being such that said damping medium in said chamber effectuates damping in the damping chamber as said damper plate and first slide undergo relative vibratory motion.
Claim 3
Dependent Claim 38 words
The way damper apparatus of claim 1 wherein the dimension of said chamber normal to said damper plate and first slide in unvibrated assembly with said second slide is in the range of 0.0005 inches to 0.025 inches.
Claim 4
Dependent Claim 16 words
The way damper apparatus of claim 1, wherein said damping medium comprises a viscous damping medium.
Claim 5
Dependent Claim 15 words
The way damper apparatus of claim 1, wherein said damping medium comprises a visco-elastic element.
Claim 6
Dependent Claim 189 words
In a tool having first and second cooperating slides slidably movable with respect to one another, an improved way damper apparatus for damping vibrations, wherein the improvement comprises: (a) a damper plate carried by said first slide, said plate having anti-friction surface means in slidable engagement with said second slide; (b) means for relatively moving said plate and first slide in unison with respect to said second slide and for permitting reversing movement of said damper plate in a direction for substantially normal to slide movement between said first and second slides, while said slides are relatively moving; (c) means for defining a damping chamber between said damper plate and first slide, wherein the dimension of said chamber normal to said damper plate and said first slide in unvibrated assembly with said second slide is in the range of 0.0005 inches to 0.025 inches; and (d) a viscous damping medium in said damping chamber, said means for defining a damping chamber being such that said damping medium in said chamber effectuates squeeze film damping in the damping chamber as said damper plate and first slide undergo relative vibratory motion.
Claim 7
Dependent Claim 189 words
In a tool having first and second cooperating slides slidably movable with respect to one another, an improved way damper apparatus for damping vibrations, wherein the improvement comprises: (a) a damper plate carried by said first slide, said plate having anti-friction surface means in slidable engagement with said second slide; (b) means for relatively moving said plate and first slide in unison with respect to said second slide and for permitting reversing movement of said damper plate in a direction for substantially normal to slide movement between said first and second slides, while said slides are relatively moving; (c) means for defining a damping chamber between said damper plate and first slide, wherein the dimension of said chamber normal to said damper plate and said first slide in unvibrated assembly with said second slide is in the range of 0.0005 inches to 0.025 inches; and (d) a viscous damping medium in said damping chamber, said means for defining a damping chamber being such that said damping medium in said chamber effectuates squeeze film damping in the damping chamber as said damper plate and first slide undergo relative vibratory motion.
Claim 8
Dependent Claim 155 words
In a tool having first and second cooperating slides slidably movable with respect to one another, an improved way damper apparatus for damping vibrations, wherein the improvement comprises: (a) a damper plate carried by said first slide, said plate having anti-friction surface means in slidable engagement with said second slide; (b) means for relatively moving said plate and first slide in unison with respect to said second slide and for permitting reversing movement of said damper plate in a direction substantially normal to slide movement between said first and second slides, while said slides are relatively moving; (c) means for defining a damping chamber between said damper plate and said first slide; and (d) a visco-elastic damping medium in said damping chamber, said means for defining a damping chamber being such that said damping medium in said chamber effectuates damping in the damping chamber as said damper plate and first slide undergo relative vibratory motion.
Claim 9
Dependent Claim 155 words
In a tool having first and second cooperating slides slidably movable with respect to one another, an improved way damper apparatus for damping vibrations, wherein the improvement comprises: (a) a damper plate carried by said first slide, said plate having anti-friction surface means in slidable engagement with said second slide; (b) means for relatively moving said plate and first slide in unison with respect to said second slide and for permitting reversing movement of said damper plate in a direction substantially normal to slide movement between said first and second slides, while said slides are relatively moving; (c) means for defining a damping chamber between said damper plate and said first slide; and (d) a visco-elastic damping medium in said damping chamber, said means for defining a damping chamber being such that said damping medium in said chamber effectuates damping in the damping chamber as said damper plate and first slide undergo relative vibratory motion.

References Cited (Backward Citations)

US3020097A Cited
US3673918A Cited
US3656818A Cited
SU522940A1 Cited
US4444534A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1988-07-15 1989-01-14 1989-07-16 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1992-07-15 1993-01-14 1993-07-16 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1996-07-15 1997-01-14 1997-07-16 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag