Patent US4031760A successfully refreshed from Google Patents.
US4031760A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for balancing machines for chucking and centering of anaxial bodies of rotation
Assignee: Gebr Hofmann GmbH and Co KG Maschinenfabrik
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Filing: 1976-04-14
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Granted: 1977-06-28
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Expires: 1996-04-14
Abstract
Abstract An apparatus for clamping and centering bodies during rotation for balancing with a body receiving plate which is mounted on a spindle and which has a pair of concentric flexible rings or gaskets mounted on the upper surface thereof to define, when the body rests on the rings, a vacuum chamber from which air is removed to lock the body in place by channels which extend through the plate and communicate with the vacuum chamber. A housing extends about and is connected to the spindle by bearings with the space between the housing and spindle communicating with the vacuum chamber and with a connection extending through the housing for removing air from the vacuum chamber. Extensions of the spindle and vent holes between the housing space and the bearing prevent a vacuum from being developed in the area of the bearings.
Inventors
- 👤 Richard Muller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 10:27
CPC Classifications
G; G01; G01M; G01M1/00; G01M1/02; G01M1/04
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
160 words
An apparatus for clamping and centering bodies during rotation for balancing comprising: a body receiving plate having an upper extending surface and a plurality of channels extending therethrough into a chamber, a spindle coupled to said plate for rotating the same and having a passage extending therethrough between said channels and an enclosed space, a bearing housing enclosing said spindle, a plurality of bearings disposed between said housing and said spindle, a first flexible ring attached to and extending upward from said surface, a second flexible ring attached to and extending upward from said surface and extending about said first ring to form said chamber which is sealed by a body resting on said rings, means for producing a vacuum in said chamber by removing air from said chamber via said channels, said passage and said enclosed space to clamp said body to said upper extending surface, and a centering cone extending upward from said surface within said first ring.
Claim 2
Independent Claim
160 words
An apparatus for clamping and centering bodies during rotation for balancing comprising: a body receiving plate having an upper extending surface and a plurality of channels extending therethrough into a chamber, a spindle coupled to said plate for rotating the same and having a passage extending therethrough between said channels and an enclosed space, a bearing housing enclosing said spindle, a plurality of bearings disposed between said housing and said spindle, a first flexible ring attached to and extending upward from said surface, a second flexible ring attached to and extending upward from said surface and extending about said first ring to form said chamber which is sealed by a body resting on said rings, means for producing a vacuum in said chamber by removing air from said chamber via said channels, said passage and said enclosed space to clamp said body to said upper extending surface, and a centering cone extending upward from said surface within said first ring.
Claim 3
Dependent Claim
42 words
An apparatus as in claim 1 wherein said spindle has extensions between said bearings and said removing means and at least one vent between said extensions and said bearing for preventing a vacuum from being established in the area of said bearings.
Claim 4
Independent Claim
162 words
An apparatus for clamping and centering bodies during rotation for balancing comprising: a body receiving plate having an upper extending surface and a plurality of channels extending therethrough into a chamber; a spindle coupled to said plate for rotating the same and having a passage extending therethrough between said channels and an enclosed space; a bearing housing enclosing said spindle; a plurality of bearings disposed between said housing and said spindle; a first flexible ring attached to and extending upward from said surface; a second flexible ring attached to and extending upward from said surface and extending about said first ring to form said chamber which is sealed by a body resting on said rings; means for producing a vacuum in said chamber by removing air from said chamber via said channels, said passage and said enclosed space to clamp said body to said upper extending surface; means for rotating said plate; and means for detecting imbalances of said body during rotation.
Claim 5
Independent Claim
162 words
An apparatus for clamping and centering bodies during rotation for balancing comprising: a body receiving plate having an upper extending surface and a plurality of channels extending therethrough into a chamber; a spindle coupled to said plate for rotating the same and having a passage extending therethrough between said channels and an enclosed space; a bearing housing enclosing said spindle; a plurality of bearings disposed between said housing and said spindle; a first flexible ring attached to and extending upward from said surface; a second flexible ring attached to and extending upward from said surface and extending about said first ring to form said chamber which is sealed by a body resting on said rings; means for producing a vacuum in said chamber by removing air from said chamber via said channels, said passage and said enclosed space to clamp said body to said upper extending surface; means for rotating said plate; and means for detecting imbalances of said body during rotation.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-06-27 | 1980-12-27 | 1981-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-06-27 | 1984-12-27 | 1985-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-06-27 | 1988-12-27 | 1989-06-28 | $7700.00 | Window Closed / Lapsed |