US3785705A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Concrete median and curb sawing machine
Assignee: CONSTR MATERIALS Inc
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Filing: 1972-09-20
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Granted: 1974-01-15
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Expires: 1992-09-20
Abstract
Abstract A mobile frame mounting an extensible and retractable boom for generally upward and downward swinging movements and having a rotary saw or cutter element at its outer end for cutting grooves in concrete highway median strips or curbs transversely of the longitudinal dimension of the median strips or curbs. The boom is further movable between its operative position transversely of the direction of travel of the mobile frame and a storage position generally longitudinally of the direction of frame travel.
Inventors
- 👤 W Binger
- 👤 G Moey
- 👤 L Shope
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:53
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/18; E02F3/183; B; B23; B23D; B23D45/00; B23D45/02; B23D45/021; B23D45/028; B23D47/00; B23D47/08; B28; B28D; B28D1/00; B28D1/02; B28D1/04; B28D1/045; E01; E01C; E01C23/00; E01C23/06; E01C23/09; E01C23/0906; E01C23/0926; E01C23/0933; E01F; E01F15/00; E01F15/02; E01F15/08; E01F15/081; E01F15/083; E02F3/186; E02F5/00; E02F5/02; E02F5/08; Y; Y10; Y10S; Y10S83/00; Y10S83/928
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
182 words
A concrete median and curb sawing machine comprising: a. a mobile frame; b. a longitudinally extensible and retractable boom operatively extending generally transversely of the direction of traveling movement of the frame and having inner and outer ends; c. mounting means mounting the boom adjacent its inner end on said frame structure for pivotal movements of said boom on a generally horizontal axis extending transversely of the boom; d. means for imparting pivotal movement to said boom on said generally horizontal axis; e. a disk-like cutter element; f. means journaling said cutter element on the outer end of said boom for rotation on an axis parallel to said horizontal axis of pivotal movement of said boom relative to said frame; g. a rotary guide wheel journaled on the outer end of the boom on the extended axis of said cutter element and having a radially outer circumferential surface engaging the surface of material to be cut by said cutter element to control the depth of cut made by said cutter element; h. and means for imparting cutting rotation to said cutter element.
Claim 2
Dependent Claim
182 words
A concrete median and curb sawing machine comprising: a. a mobile frame; b. a longitudinally extensible and retractable boom operatively extending generally transversely of the direction of traveling movement of the frame and having inner and outer ends; c. mounting means mounting the boom adjacent its inner end on said frame structure for pivotal movements of said boom on a generally horizontal axis extending transversely of the boom; d. means for imparting pivotal movement to said boom on said generally horizontal axis; e. a disk-like cutter element; f. means journaling said cutter element on the outer end of said boom for rotation on an axis parallel to said horizontal axis of pivotal movement of said boom relative to said frame; g. a rotary guide wheel journaled on the outer end of the boom on the extended axis of said cutter element and having a radially outer circumferential surface engaging the surface of material to be cut by said cutter element to control the depth of cut made by said cutter element; h. and means for imparting cutting rotation to said cutter element.
Claim 3
Dependent Claim
37 words
The machine defined in claim 1 in which said boom comprises a plurality of telescoping boom sections, characterized by fluid pressure operated cylinder and piston means for imparting boom extending and retracting movements to said boom sections.
Claim 4
Dependent Claim
24 words
The machine defined in claim 2 in which said boom sections are hollow, said cylinder and piston means being disposed longitudinally within said boom.
Claim 5
Dependent Claim
82 words
The machine defined in claim 1 in which said mounting means comprises a base member mounted on said mobile frame for rotation on a generally vertical axis, said boom being pivotally mounted on said base member on said generally horizontal axis, whereby said boom may be pivotally moved generally upwardly and downwardly and swung on said generally vertical axis betweeN an operative position generally transversely of said frame and a storage position generally parallel to the direction of movement of said frame.
Claim 6
Dependent Claim
51 words
The machine defined in claim 1 characterized by ground-engaging wheels supporting said frame, a pair of fluid pressure operated motors operatively connected to a pair of said wheels for driving said frame, pump means for supplying fluid under pressure to said motors, and an engine drivingly connected to said pump means.
Claim 7
Dependent Claim
38 words
The machine defined in claim 5 in which said wheels include a pair of steerable wheels, characterized by a fluid pressure operated steering motor operatively connected to said pump means for imparting steering movements to said steerable wheels.
Claim 8
Dependent Claim
56 words
The machine defined in claim 5 in which said means for imparting cutting rotation to said cutter element comprises a fluid pressure operated cutter drive motor mounted on said outer end of the boom and having a rotary shaft connected to said cutter element, and conduit means operatively connecting said rotary motor to said pump means.
Claim 9
Dependent Claim
47 words
The machine defined in claim 7 in which said conduit means comprises flexible tubing extending between said cutter drive motor and said pump means, and a supporting device for supporting said tubing intermediate the opposite ends thereof in all positions of extension and contraction of said boom.
Claim 10
Dependent Claim
60 words
The machine defined in claim 8 in which said supporting device comprises a mast extending upwardly from said frame, a pulley on the upper end of said mast, a flexible cable element entrained over said pulley and having opposite ends one of which is secured to said conduit means, and a counterweight connected to the other end of said cable.
Claim 11
Dependent Claim
26 words
The machine defined in claim 9 in which said mast includes a tubular portion, said counterwieght being disposed for vertical movements axially within said tubular portion.
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) | 1977-01-14 | 1977-07-16 | 1978-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-14 | 1981-07-16 | 1982-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-14 | 1985-07-16 | 1986-01-15 | $7700.00 | Window Closed / Lapsed |