US5896798A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chop/slide saw
Assignee: Individual
•
Filing: 1996-12-18
•
Granted: 1999-04-27
•
Expires: 2016-12-18
Abstract
Abstract A saw comprising a table, a support mounted on the table, a saw assembly including a blade journalled in the assembly and a motor to drive the blade, and a slot in the table through which the blade can be plunged, wherein the support defines a channel which receives a shaft carried by the saw assembly such that the saw assembly can slide relative to and over the support to extend the reach of the saw blade along the slot. By allowing the saw assembly to lie above the support, the weight of the saw assembly is transferred to the table through the support and the space occupied by the saw assembly and support can be reduced.
Inventors
- 👤 Andrea Garuglieri
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:35
CPC Classifications
B; B23; B23D; B23D45/00; B23D45/04; B23D45/042; B23D45/046; B23D45/048; Y; Y10; Y10T; Y10T83/00; Y10T83/768; Y10T83/7684; Y10T83/7722; Y10T83/7726; Y10T83/773; Y10T83/7755; Y10T83/7763; Y10T83/869; Y10T83/8773
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
120 words
A saw comprising: a table; a support fixedly mounted on the table and defining at least one channel, the support comprising a pivot block fixed to the table and a pivot member which defines the at least one channel, the pivot member being pivotable relative to the pivot block to adjust blade cutting angle; a saw assembly comprising a blade journalled in the saw assembly, a motor to drive the blade, and at least one shaft slideably mounted on the at least one channel; and a slot in the table through which the blade can be plunged, wherein the saw assembly can slide relative to and over the support to extend the reach of the saw blade along the slot.
Claim 2
Dependent Claim
120 words
A saw comprising: a table; a support fixedly mounted on the table and defining at least one channel, the support comprising a pivot block fixed to the table and a pivot member which defines the at least one channel, the pivot member being pivotable relative to the pivot block to adjust blade cutting angle; a saw assembly comprising a blade journalled in the saw assembly, a motor to drive the blade, and at least one shaft slideably mounted on the at least one channel; and a slot in the table through which the blade can be plunged, wherein the saw assembly can slide relative to and over the support to extend the reach of the saw blade along the slot.
Claim 3
Dependent Claim
17 words
A saw as claimed in claim 1, wherein the at least one channel has a C-shaped cross-section.
Claim 4
Dependent Claim
22 words
A saw as claimed in claim 1, wherein the at least one channel comprises a bearing between the support and the shaft.
Claim 5
Dependent Claim
36 words
A saw as claimed in claim 1, wherein the saw assembly further comprises a detent for holding the saw assembly in a retracted position on the support until the saw blade is plunged towards the slot.
Claim 6
Dependent Claim
113 words
A saw comprising: a table; a support mounted on the table and defining a first channel, the support comprising a pivot block fixed to the table and a pivot member which defines the first channel, the pivot member being pivotable relative to the pivot block to adjust blade cutting angle; a saw assembly comprising a blade journalled in the saw assembly, a motor to drive the blade, and a first shaft slideably mounted on the first channel; and a slot in the table through which the blade can be plunged, wherein the saw assembly can slide relative to and over the support to extend the reach of the saw blade along the slot.
Claim 7
Dependent Claim
113 words
A saw comprising: a table; a support mounted on the table and defining a first channel, the support comprising a pivot block fixed to the table and a pivot member which defines the first channel, the pivot member being pivotable relative to the pivot block to adjust blade cutting angle; a saw assembly comprising a blade journalled in the saw assembly, a motor to drive the blade, and a first shaft slideably mounted on the first channel; and a slot in the table through which the blade can be plunged, wherein the saw assembly can slide relative to and over the support to extend the reach of the saw blade along the slot.
Claim 8
Dependent Claim
33 words
A saw as claimed in claim 5, wherein a retraction mechanism acts between the pivot block and the pivot member to urge the saw blade into a position substantially perpendicular to the slot.
Claim 9
Dependent Claim
46 words
A saw as claimed in claim 5, wherein the saw assembly further comprises a quadrilateral linkage engaged to the blade guard and the saw assembly so that, as the saw blade is plunged towards the slot, the blade guard is opened to expose the saw blade.
Claim 10
Dependent Claim
39 words
A saw as claimed in claim 7, wherein the saw assembly further comprises a motor plate which carries the shaft and a spring means between the motor plate and the motor for biasing the blade away from the slot.
Claim 11
Dependent Claim
39 words
A saw as claimed in claim 5 wherein the saw assembly further comprises a motor plate which carries the shaft and a spring means between the motor plate and the motor for biasing the blade away from the slot.
Claim 12
Dependent Claim
31 words
A saw as claimed in claim 9, wherein the spring means comprise a spring and a lever which, when rotated, releases the tension in the spring to lower the saw blade.
Claim 13
Dependent Claim
19 words
A saw as claimed in claim 10, wherein the motor plate carries a locking device for locking the lever.
Claim 14
Dependent Claim
22 words
A saw as claimed in claim 5, further comprising means for locking the saw assembly at any position relative to the support.
Claim 15
Dependent Claim
19 words
A saw as claimed in claim 1, wherein the at least one shaft is carried below the saw assembly.
Claim 16
Dependent Claim
33 words
A saw as claimed in claim 1, wherein the at least one shaft bears a substantial portion of weight of the saw assembly substantially evenly over length of the at least one shaft.
Claim 17
Dependent Claim
15 words
A saw as claimed in claim 5, wherein the first channel has a C-shaped cross-section.
Claim 18
Dependent Claim
20 words
A saw as claimed in claim 5, wherein the first channel comprises a bearing between the support and the shaft.
Claim 19
Dependent Claim
36 words
A saw as claimed in claim 5, wherein the saw assembly further comprises a detent for holding the saw assembly in a retracted position on the support until the saw blade is plunged towards the slot.
Claim 20
Dependent Claim
30 words
A saw as claimed in claim 5, wherein the shaft bears a substantial portion of weight of the saw assembly substantially evenly over length of the at least one shaft.
Claim 21
Dependent Claim
20 words
A saw as claimed in claim 12, wherein said locking means comprises a toggle lever carried by the saw assembly.
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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) | 2002-04-26 | 2002-10-26 | 2003-04-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-04-26 | 2006-10-26 | 2007-04-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-04-26 | 2010-10-26 | 2011-04-27 | $7700.00 | Window Closed / Lapsed |