US3774361A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shore line boat anchor
Assignee: Individual
•
Filing: 1972-03-27
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Granted: 1973-11-27
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Expires: 1992-03-27
Abstract
Abstract An anchor to secure a cord or other tying device to the ground includes a stake which is driven into the ground. At its leading end the stake has hinge plates which are movable relative to the stake about hinge pins. As the stake is driven into the ground, the hinge plates lie along the side of the stake, projecting toward the trailing drive end thereof. Once inserted, the stake is withdrawn slightly, and this causes the hinge plates to swing outwardly to an anchoring position wherein they project laterally from the stake and secure the stake firmly in the ground. A retaining cord is provided for holding plates in the anchoring position. To remove the anchor from the ground, the retaining cord is released, permitting the hinge plates to fold against the stake in the opposite direction as the stake is withdrawn. The cord which is secured by the anchor is attached to the stake between its leading end and its longitudinal midpoint.
Inventors
- 👤 E Tanner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 23:42
CPC Classifications
E; E02; E02D; E02D5/00; E02D5/74; E02D5/80; E02D5/803
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
289 words
An anchor to be forced into the ground for securing an elongated tying device such as a cord to the ground, said anchor comprising: an elongated stake adapted to be driven into the ground and having a lead end and a trailing drive end; an intermedIate plate of generally V-shaped configuration fastened to the stake at the lead end thereof such that the converging portion of the V-shaped configuration is presented forwardly and forms the endmost surface of the anchor, the rearwardly presented ends of the intermediate plate being provided with hinge pins which are located near the lead end of the stake and are fixed in position with respect to the stake; hinge plates connected at their ends to the hinge pins with one hinge plate being on one side of the stake and the other on the other side of the stake, both hinge plates being movable relative to the stake about the hinge pins between insertion, withdrawal, and anchoring positions, the hinge plates when in their insertion positions being extended generally in the direction of the stake and projecting from the hinge pins toward the drive end of the stake, the hinge plates when in their withdrawal position being also extended in the general direction of the stake, but projecting from the hinge pins away from the drive end, the hinge plates when in their anchoring positions being intermediate the insertion and withdrawal positions and projecting laterally from the stake; and retaining means for holding the hinge plates in their anchoring positions when withdrawal forces are applied to the stake, the retaining means being releasable to enable the hinge plates to move to their withdrawal positions, whereby the anchor may be easily withdrawn from the ground.
Claim 2
Dependent Claim
289 words
An anchor to be forced into the ground for securing an elongated tying device such as a cord to the ground, said anchor comprising: an elongated stake adapted to be driven into the ground and having a lead end and a trailing drive end; an intermedIate plate of generally V-shaped configuration fastened to the stake at the lead end thereof such that the converging portion of the V-shaped configuration is presented forwardly and forms the endmost surface of the anchor, the rearwardly presented ends of the intermediate plate being provided with hinge pins which are located near the lead end of the stake and are fixed in position with respect to the stake; hinge plates connected at their ends to the hinge pins with one hinge plate being on one side of the stake and the other on the other side of the stake, both hinge plates being movable relative to the stake about the hinge pins between insertion, withdrawal, and anchoring positions, the hinge plates when in their insertion positions being extended generally in the direction of the stake and projecting from the hinge pins toward the drive end of the stake, the hinge plates when in their withdrawal position being also extended in the general direction of the stake, but projecting from the hinge pins away from the drive end, the hinge plates when in their anchoring positions being intermediate the insertion and withdrawal positions and projecting laterally from the stake; and retaining means for holding the hinge plates in their anchoring positions when withdrawal forces are applied to the stake, the retaining means being releasable to enable the hinge plates to move to their withdrawal positions, whereby the anchor may be easily withdrawn from the ground.
Claim 3
Dependent Claim
25 words
An anchor according to claim 1 wherein the elongated tying device is secured to the stake between the lead end and the longitudinal midportion thereof.
Claim 4
Dependent Claim
70 words
An anchor according to claim 1 wherein the retaining means comprises cords connected at their lower ends to the hinge plates and means for attaching the opposite ends to the stake at the drive end thereof, the lengths of the cords being such that when the opposite ends are attached to the drive end of the stake and the hinge plates are in their anchoring positions, the cords are taut.
Claim 5
Dependent Claim
37 words
An anchor according to claim 3 wherein the stake is provided with apertured means at its drive end and the means for attaching the cord includes a hook sized to engage an aperture in the apertured means.
Claim 6
Dependent Claim
24 words
An anchor according to claim 4 and further characterized by spring means for urging the hinge plates from their insertion to their anchoring positions.
Claim 7
Dependent Claim
61 words
An anchor according to claim 5 wherein the hinge plates lie along the sides of the stake when in the insertion position; and wherein the spring means comprises a compression type coil spring extended through the stake at a location which enables the ends of the spring to bear against the hinge plates when the plates are in the insertion position.
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) | 1976-11-26 | 1977-05-28 | 1977-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-26 | 1981-05-28 | 1981-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-26 | 1985-05-28 | 1985-11-27 | $7700.00 | Window Closed / Lapsed |