US4596060A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Worktable
Assignee: Kaltenbach and Voigt GmbH
•
Filing: 1984-07-27
•
Granted: 1986-06-24
•
Expires: 2004-07-27
Abstract
Abstract A worktable, in particular a dental laboratory workbench which includes a work block arranged at front side of the table, and a vacuuming device forming a unitary structure with the work block for vacuumable material or waste which is obtained during the processing or finishing of workpieces.
Inventors
- 👤 Helmut Schmidt
- 👤 Anton Bodenmiller
- 👤 Alfred Straka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 09:05
CPC Classifications
B; B08; B08B; B08B15/00; B08B15/04; A; A61; A61C; A61C19/00; A61C19/007; B25; B25H; B25H1/00; B25H1/20; A47; A47B; A47B2200/00; A47B2200/06; Y; Y10; Y10S; Y10S55/00; Y10S55/18
Claims Analysis
Total Claims: 44
Claim 1
Independent Claim
134 words
In combination, a worktable with a work block arranged at the front side of the table, said work block having a vacuuming means arranged therein for removing vacuumable waste material from said work block or worktable during the finishing of work pieces, said combination comprising: (a) a work block being vertically adjustable on a worktable into a plurality of positions, (b) a vacuum means mounted within said work block including at least one suctioning opening, said means (c) operative in a first position associated with a finishing area of the work block, (d) and operative in a second work position associated with a table plate as a finishing area, (e) means for supporting said work block and vacuum means for pivotal movement through said plurality of positions, and into an inoperative and stored position.
Claim 2
Dependent Claim
134 words
In combination, a worktable with a work block arranged at the front side of the table, said work block having a vacuuming means arranged therein for removing vacuumable waste material from said work block or worktable during the finishing of work pieces, said combination comprising: (a) a work block being vertically adjustable on a worktable into a plurality of positions, (b) a vacuum means mounted within said work block including at least one suctioning opening, said means (c) operative in a first position associated with a finishing area of the work block, (d) and operative in a second work position associated with a table plate as a finishing area, (e) means for supporting said work block and vacuum means for pivotal movement through said plurality of positions, and into an inoperative and stored position.
Claim 3
Dependent Claim
64 words
A worktable as claimed in claim 1, wherein said first position is an upper work position using the work block as a finishing area, and the second position is a lower work position associated with the table plate as a workpiece finishing area, wherein the suctioning opening of said vauum means is in both work positions located above the surface of the table plate.
Claim 4
Dependent Claim
25 words
A worktable as claimed in claim 2, wherein said work block is lockable in intermediate positions between the lower work position and the stored position.
Claim 5
Dependent Claim
32 words
A worktable as claimed in claim 1, wherein said vacuum means includes a suctioning opening facing said table plate in a direction away from a person positioned in front of the table.
Claim 6
Dependent Claim
22 words
A worktable as claimed in claim 1, wherein said inoperative and stored position is arranged below the surface of the table plate.
Claim 7
Dependent Claim
25 words
A worktable as claimed in claim 5, wherein a storage niche is arranged in the table for receiving said unit in the stored position thereof.
Claim 8
Dependent Claim
29 words
A worktable as claimed in claim 5, wherein a storage niche is arranged below the table plate in said table for receiving said unit in the stored position thereof.
Claim 9
Dependent Claim
22 words
A worktable as claimed in claim 1, wherein the work block is lockable in at least one of said two work positions.
Claim 10
Dependent Claim
17 words
A worktable as claimed in claim 8, comprising latching means for locking the work block in position.
Claim 11
Dependent Claim
53 words
A worktable as claimed in claim 9, wherein said latching means for locking the work block in the upper work position comprises a clamping element which is movable from an inoperative position into a clamping position, and which in the clamping position locks the parallelogram linkage in position relative to said work block.
Claim 12
Dependent Claim
25 words
A worktable as claimed in claim 10, wherein the clamping element is movable into the clamping position responsive to the action of a resetting element.
Claim 13
Dependent Claim
21 words
A worktable as claimed in claim 10, wherein the clamping element includes a handle for effecting movement into a non-clamping position.
Claim 14
Dependent Claim
34 words
A worktable as claimed in claim 12, wherein said handle has a pin-like structure and projects outwardly from said work block through an arcuately shaped slot formed in a side wall of said housing.
Claim 15
Dependent Claim
18 words
A worktable as claimed in claim 1, wherein said work block is lockable in the stored position thereof.
Claim 16
Dependent Claim
21 words
A worktable as claimed in claim 1, wherein said work block is lockable in intermediate positions between said two work positions.
Claim 17
Dependent Claim
28 words
A worktable as claimed in claim 1, wherein said means for supporting said work block further comprises a parallelogram linkage for connecting said work block with the table.
Claim 18
Dependent Claim
15 words
A worktable as claimed in claim 16, wherein said parallelogram linkage comprises two parallelogram arms.
Claim 19
Dependent Claim
53 words
A worktable as claimed in claim 16, wherein the ends of the parallelogram linkage facing towards the table are linked with a pivot lever which is supported so as to be pivotably movable into the work positions, with the upper end of the work block pivoting about a horizontal axis of the table.
Claim 20
Dependent Claim
24 words
A worktable as claimed in claim 18, wherein the horizontal axis is supported for horizontal reciprocal movement in elongated slots formed in said table.
Claim 21
Dependent Claim
36 words
A worktable as claimed in claim 1, wherein the work block further includes a work repository extending in the work positions towards the suctioning opening, said repository forming at least a portion of said work block.
Claim 22
Dependent Claim
17 words
A worktable as claimed in claim 20, wherein said work repository is movable into said work block.
Claim 23
Dependent Claim
21 words
A worktable as claimed in claim 21, wherein said work repository is pivotable about a horizontal axis into the work block.
Claim 24
Dependent Claim
51 words
A worktable as claimed in claim 22, wherein said latching means for locking the work repository includes a pivot lever pivotable about a horizontal axis, said pivot lever herein equipped with an engaging element for locking engagement with a complementary engaging element of the work repository while in the work position.
Claim 25
Dependent Claim
26 words
A worktable as claimed in claim 23, wherein the pivot lever includes a resetting element restraining the lever in the engaging position of the engaging element.
Claim 26
Dependent Claim
25 words
A worktable as claimed in claim 23, wherein the pivot lever includes a handle for effecting movement into the non-engaged position of the engaging element.
Claim 27
Dependent Claim
34 words
A worktable as claimed in claim 25, wherein said handle has a pin-like structure and extends outwardly of the work block through an arcuately shaped slot formed in a side wall of said housing.
Claim 28
Dependent Claim
45 words
A worktable as claimed in claim 22, wherein the work repository has a bar configuration which, at one end, includes a bent portion essentially upwardly directed at right angles in the work position, the free end of said portion being pivotable about the horizontal axis.
Claim 29
Dependent Claim
29 words
A worktable as claimed in claim 27, wherein the complementary engaging element on the work repository is arranged on the lower side at the end of said bent portion.
Claim 30
Dependent Claim
32 words
A worktable as claimed in claim 21, wherein said work repository is lockable in an inoperative position within said unit and lockable in a work position extended outwardly from said work block.
Claim 31
Dependent Claim
19 words
A worktable as claimed in claim 29, which further includes latching means for locking said work repository in position.
Claim 32
Dependent Claim
46 words
A worktable as claimed in claim 21, wherein said work block further includes a housing having a front side open towards the table plate, said opening having a height and width to enable the work repository to move through the open front side into said housing.
Claim 33
Dependent Claim
16 words
A worktable as claimed in claim 31, wherein the work block housing has an oblong shapes.
Claim 34
Dependent Claim
63 words
A worktable as claimed in claim 1, wherein said work block is movable from a first work position wherein the upper end of the work block provides a direct workpiece finishing area into a second lower work position within the work block providing a second direct finishing area, said vacuum means including two suctioning openings adjustable to either one of the work positions.
Claim 35
Dependent Claim
28 words
A worktable as claimed in claim 33, wherein said work block is pivotable about a horizontal axis on the table from the first to the second work position.
Claim 36
Dependent Claim
22 words
A worktable as claimed in claim 33, wherein said work block is lockable in at least one of the two work positions.
Claim 37
Dependent Claim
97 words
A worktable as claimed in claim 33, wherein the work block includes a housing having a front side open towards the table plate and an oppositely-located open rear side, a vacuuming funnel which includes two suctioning openings, said funnel being supported so as to be pivotable about a horizontal axis in the housing, wherein in the first work position one of said two suctioning openings is operable at the front side of the work block and in the second work position the other of said two suctioning openings is operable at the rear side of the unit.
Claim 38
Dependent Claim
45 words
A worktable as claimed in claim 36, wherein the vacuuming funnel is pivotable to assume the two positions associated with the work positions of the work block, the respective suctioning opening being pivotable from the front side to the rear side of the work block.
Claim 39
Dependent Claim
78 words
Worktable as claimed in claim 36, wherein the oblong-shaped unit in the upper work position thereof extends thereof upwardly essentially upwardly in which the upper surface of the unit forms the finishing area, said unit in the lower work position thereof extending beyond the table plate and contacting with the edge of the open front side on the surface of the table plate whereby an unopened portion of the rear side of the unit forms the finishing area.
Claim 40
Dependent Claim
36 words
Worktable as claimed in claim 38, wherein the edge of the open front side is provided with a sealing lip extending about the opening and which is in contact with the surface of the table plate.
Claim 41
Dependent Claim
33 words
Worktable as claimed in claim 36, wherein the vacuuming funnel with one suctioning opening is pivotable outwardly from the open front side of the unit responsive to the action of the resetting element.
Claim 42
Dependent Claim
34 words
Worktable as claimed in claim 1, wherein the suctioning opening of the vacuuming means of the unit is connected to a flexible vacuum conduit which is connected to a vacuum connector on the table.
Claim 43
Dependent Claim
16 words
Worktable as claimed in claim 41, wherein the vacuum connector is connected with a suction motor.
Claim 44
Dependent Claim
27 words
Worktable as claimed in claim 41, in which the vacuum connector includes a vacuum drawer arranged in the table, and which is connected with a suction motor.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-06-23 | 1989-12-23 | 1990-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-06-23 | 1993-12-23 | 1994-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-06-23 | 1997-12-23 | 1998-06-24 | $7700.00 | Window Closed / Lapsed |