US3811348A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surveying apparatus with cutter
Assignee: Individual
•
Filing: 1973-06-05
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Granted: 1974-05-21
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Expires: 1993-06-05
Abstract
Abstract An apparatus and method of providing surveyor stakes having a top end termination indicative of a desired elevation is disclosed comprising a hydraulic cylinder connected to a cutting blade supported on the lower end of a levelling rod movable adjacent a surveyor''s stake while being monitored through a transit with the hydraulic cutting means being actuated by a manual hydraulic pump carried by the user when the blade is observed to be positioned at a desired elevation to cut the top of the stake and provide a resultant stake having a top end termination of the desired elevation.
Inventors
- 👤 R Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:23
CPC Classifications
G; G01; G01C; G01C15/00; G01C15/02; G01C15/06; Y; Y10; Y10T; Y10T83/00; Y10T83/04; Y10T83/849; Y10T83/853; Y10T83/869; Y10T83/8772; Y10T83/8773; Y10T83/8776; Y10T83/8785; Y10T83/97
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
103 words
An apparatus for providing a vertically oriented stake having a top end termination at a desired elevation, said apparatus comprising a vertically movable support member, cutting means capable of severing a stake, said cutting means being mounted on said support member for vertical movement adjacent a stake having a top end termination above said desired elevation and indicator means on said support member indicative of the elevation of the cutting means so that actuation of said cutting means can be effected when the cutting means is at said desired elevation to provide a stake having a top end termination at said desired elevation.
Claim 2
Independent Claim
103 words
An apparatus for providing a vertically oriented stake having a top end termination at a desired elevation, said apparatus comprising a vertically movable support member, cutting means capable of severing a stake, said cutting means being mounted on said support member for vertical movement adjacent a stake having a top end termination above said desired elevation and indicator means on said support member indicative of the elevation of the cutting means so that actuation of said cutting means can be effected when the cutting means is at said desired elevation to provide a stake having a top end termination at said desired elevation.
Claim 3
Dependent Claim
13 words
The invention of claim 1 wherein said support means comprises a levelling rod.
Claim 4
Dependent Claim
29 words
The invention of claim 1 wherein said support means comprises a levelling rod and additionally including hydraulic power means connected to said cutting means for actuating said cutting means.
Claim 5
Dependent Claim
44 words
The invention of claim 1 wherein said support means comprises a levelling rod and further including hydraulic power means connected to said cutting means for actuating said cutting means and bracket means connecting said cutting means to the lower end of said levelling rod.
Claim 6
Dependent Claim
100 words
The invention of claim 1 wherein said support means comprises a levelling rod and said cutting means comprises a movable blade, guide means supporting said movable blade for linear path of movement, hydraulic power means connected to said movable blade moving said movable blade along said linear path of movement, bracket means connectingly supporting saId movable blade, said guide means and said hydraulic power means to the lower end of said levelling rod and backup means engageable with a side of said stake opposite said blade for preventing movement of said stake by engagement of said blade with the stake.
Claim 7
Dependent Claim
56 words
The invention of claim 5 additionally including a manually operable hydraulic pump carried by the user of the apparatus and hydraulic hose means connecting said hydraulic pump to said hydraulic power means whereby the user of the apparatus can actuate said hydraulic power means from various positions limited by the length of said hydraulic hose means.
Claim 8
Dependent Claim
79 words
The invention of claim 5 wherein said guide means comprises first and second parallel guide plates, a shoulder plate connecting one end of said guide plates, said guide plates having inwardly facing surfaces in which parallel aligned guide slots extend, said cutting blade comprises a rectangular blade member having ends received in said guide slots, and said hydraulic power means comprises a hydraulic cylinder mounted on said shoulder plate and having an internal piston connected to said cutting blade.
Claim 9
Dependent Claim
54 words
The invention of claim 7 wherein said bracket means includes a pivot pin having an axis extending substantially parallel to the axis of said levelling rod and a radial arm means extending from the lower end of said pivot pin and having an outer end termination to an external surface of said backup means.
Claim 10
Dependent Claim
78 words
The invention of claim 8 wherein said backup means comprises a backup plate fixedly connected to the ends of said guide plates opposite the ends of said guide plates connected to said shoulder plate whereby a stake receiving opening is defined by inwardly facing surfaces of said guide plates and said backup plate in conjunction with a cutting edge of said cutting blade in which stake receiving opening receiving said stake is received prior to the cutting thereof.
Claim 11
Dependent Claim
43 words
The invention of claim 8 wherein said guide slots are oriented at an acute angle with respect to the inwardly facing surface of said backup plate and said cutting blade includes a forward cutting edge positioned medially of the thickness of said blade.
Claim 12
Independent Claim
99 words
A method of providing a vertically positioned survey stake with a top end termination at a desired elevation, said method comprising the steps of moving a selectively actuable cutting means adjacent a vertically extending stake having a top end termination above the desired elevation, monitoring movement of the selectively actuable cutting means and terminating the vertical movement of the selectively actuable cutting means when said selectively actuable cutting means arrives at said desired elevation and actuating said selectively actuable cutting means at said desired elevation to provide a survey stake having a top end termination at said desired elevation.
Claim 13
Independent Claim
99 words
A method of providing a vertically positioned survey stake with a top end termination at a desired elevation, said method comprising the steps of moving a selectively actuable cutting means adjacent a vertically extending stake having a top end termination above the desired elevation, monitoring movement of the selectively actuable cutting means and terminating the vertical movement of the selectively actuable cutting means when said selectively actuable cutting means arrives at said desired elevation and actuating said selectively actuable cutting means at said desired elevation to provide a survey stake having a top end termination at said desired elevation.
Claim 14
Dependent Claim
36 words
The method of claim 11 wherein the elevation of said selectively actuable cutting means is monitored by visual inspection through a transit of a levelling rod to which the selectively actuable cutting means is supportingly attached.
References Cited (Backward Citations)
US3438129A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-05-20 | 1977-11-19 | 1978-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-05-20 | 1981-11-19 | 1982-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-05-20 | 1985-11-19 | 1986-05-21 | $7700.00 | Window Closed / Lapsed |