Patent US4722685A successfully refreshed from Google Patents.
US4722685A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tool for adapting a portable lathe to treat the back molar teeth of horses
Assignee: Individual
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Filing: 1986-05-23
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Granted: 1988-02-02
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Expires: 2006-05-23
Abstract
Abstract A dental tool for grinding spikes formed on the molar teeth of horses. An elongated hollow tube is fixed to the tool grip, and the grinding bur is removably attached at the other end of the tube to a rotary flexible connector that passes along inside the tube. The length of the tube is approximately the mean depth of a horse's mouth, to enable the tool to access teeth lying well back in the mouth. A detachable cover is provided for the bur, having an opening for exposing the bur to the tooth under treatment and protecting the tongue and cheek tissue from possible injury.
Inventors
- 👤 Juan M. de Estrada
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:37
CPC Classifications
A; A61; A61D; A61D5/00; A61C; A61C1/00; A61C1/08; A61C1/10
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
188 words
A dental lathe for use with animal species and comprising: a motor having a rotary output shaft, a hand-tool having a grip for manipulating the hand-tool and a bur for grinding tooth irregularities of an animal, and a flexible rotary connector for transmitting rotational movement from said motor shaft to said bur; wherein said hand-tool further includes means for adapting said dental lathe to enable said bur to be adequately applied to the back molar teeth of a predetermined animal species, said adapting means comprising: a hollow elongated spacer separating said bur and said grip a predetermined distance in accordance with the average depth of the mouth of said animal species, to enable said bur to reach said back teeth whilst said grip is held outside said mouth, and a protector device for covering part of said bur to avoid other parts of said mouth, such as inner cheek or tongue, coming into contact with said bur; said protector device comprising: a hood having a generally closed tip for providing greater protection to said mouth, and a partially open side for exposing said bur to said tooth irregularities.
Claim 2
Dependent Claim
188 words
A dental lathe for use with animal species and comprising: a motor having a rotary output shaft, a hand-tool having a grip for manipulating the hand-tool and a bur for grinding tooth irregularities of an animal, and a flexible rotary connector for transmitting rotational movement from said motor shaft to said bur; wherein said hand-tool further includes means for adapting said dental lathe to enable said bur to be adequately applied to the back molar teeth of a predetermined animal species, said adapting means comprising: a hollow elongated spacer separating said bur and said grip a predetermined distance in accordance with the average depth of the mouth of said animal species, to enable said bur to reach said back teeth whilst said grip is held outside said mouth, and a protector device for covering part of said bur to avoid other parts of said mouth, such as inner cheek or tongue, coming into contact with said bur; said protector device comprising: a hood having a generally closed tip for providing greater protection to said mouth, and a partially open side for exposing said bur to said tooth irregularities.
Claim 3
Dependent Claim
30 words
The dental lathe of claim 1, wherein said bur is removably attachable to one end of said flexible connector, and part of said flexible connector extends inside said hollow spacer.
Claim 4
Dependent Claim
21 words
The dental lathe of claim 1, wherein said protector device is removably attachable to the bur end of said elongated spacer.
Claim 5
Dependent Claim
24 words
The dental lathe of claim 1, wherein said hood is a hollow cylindrical hood having means for attaching said protector device to said hand-tool.
Claim 6
Dependent Claim
26 words
The dental lathe of claim 4, wherein said open side is longer than said bur and sustains an arc of approximately 180° of said cylindrical tube.
Claim 7
Dependent Claim
22 words
The dental lathe of claim 1, wherein said animal species is equines, and said spacer is at least approximately 12 inches long.
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) | 1991-02-01 | 1991-08-03 | 1992-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-02-01 | 1995-08-03 | 1996-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-02-01 | 1999-08-03 | 2000-02-02 | $7700.00 | Window Closed / Lapsed |