US3763845A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wall saw assembly
Assignee: CONTINENTAL DRILLING CO
•
Filing: 1972-02-22
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Granted: 1973-10-09
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Expires: 1992-02-22
Abstract
Abstract A saw assembly for cutting walls and other flat concrete surfaces is disclosed. The saw assembly is removably mounted on a trolley which rides on a track structure attached to the flat surface by means of mounting brackets. The trolley contains wheels which support the saw on the track. Certain of the wheels are retractable for transversely mounting or removing the saw from the track. A continuous opening in the track allows the mounting brackets to be secured to the track at any point along the length thereof. Further, the mounting brackets are laterally adjustable after they are secured to the flat surface so as to provide a fine adjustment in alignment of the saw to the desired cut.
Inventors
- 👤 J Hiestand
- 👤 R Thies
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 10:45
CPC Classifications
B; B28; B28D; B28D1/00; B28D1/02; B28D1/04; B28D1/045; B23; B23Q; B23Q1/00; B23Q1/25; B23Q1/26; B23Q1/40; B23Q9/00; B23Q9/0014
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
131 words
A saw assembly comprising: a track structure for mounting on a surface to be cut and for guiding said saw; a movable trolley, means for supporting said trolley on said track structure comprising a first plurality of track-engaging means for retaining said trolley on said track structure druing travel of the trolley, a second plurality of retractable trackengaging means for mounting and removing said trolley structure transversely of said track structure, retaining means secured to said retractable track-engaging means for moving said retractable track-engaging means from a non-track-engaging position to a track-engaging position and retaining said retractable track-engaging means with said trolley when said retractable track-engaging means are in either of said positions; and a housing having a rotatable saw blade secured thereto; said housing being mounted on said trolley structure.
Claim 2
Dependent Claim
131 words
A saw assembly comprising: a track structure for mounting on a surface to be cut and for guiding said saw; a movable trolley, means for supporting said trolley on said track structure comprising a first plurality of track-engaging means for retaining said trolley on said track structure druing travel of the trolley, a second plurality of retractable trackengaging means for mounting and removing said trolley structure transversely of said track structure, retaining means secured to said retractable track-engaging means for moving said retractable track-engaging means from a non-track-engaging position to a track-engaging position and retaining said retractable track-engaging means with said trolley when said retractable track-engaging means are in either of said positions; and a housing having a rotatable saw blade secured thereto; said housing being mounted on said trolley structure.
Claim 3
Dependent Claim
23 words
A saw assembly in accordance with claim 1 wherein detent means are provided for retaining said retractable means in one of said positions.
Claim 4
Dependent Claim
23 words
A saw assembly in accordance with claim 1 wherein said track structure includes a pair of spaced-apart track members positioned in parallel planes.
Claim 5
Dependent Claim
44 words
A saw assembly in accordance with claim 3 wherein said track members are spaced apart to form a continuous gap along at least a portion of said track, and bracket means mounted on said surface being positionable along said track structure in said gap.
Claim 6
Dependent Claim
43 words
A saw assembly in accordance with claim 1 wherein said track structure includes bracket means defining an opening therein for receiving securing means to fasten said track means for laterally positioning said track structure relative said surface after said bracket is secured thereto.
Claim 7
Dependent Claim
38 words
A saw assembly in accordance with claim 5 wherein said bracket means includes a base member and an end plate adapted for securing to a track, and said adjusting member moves said end plate relative said base member.
Claim 8
Dependent Claim
53 words
A saw assembly in accordance with claim 1 wherein said retaining means comprises a shaft member secured to each of said retractable track-engaging means, each of said shaft members being positioned within a slidable bushing in a side of said trolley, and a fixed bushing surrounding the outer surface of said slidable bushing.
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) | 1976-10-08 | 1977-04-09 | 1977-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-08 | 1981-04-09 | 1981-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-08 | 1985-04-09 | 1985-10-09 | $7700.00 | Window Closed / Lapsed |