Patent US3690285A successfully refreshed from Google Patents.
US3690285A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drifting anchor alarm
Assignee: Individual
•
Filing: 1971-04-07
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Granted: 1972-09-12
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Expires: 1991-04-07
Abstract
Abstract A Drifting Anchor Alarm for detecting when a boat anchor is moving with respect to the general position in which it has been dropped and secured comprising spring biased locking detents and an overlying collar for connecting and maintaining an auxiliary anchor to a main anchor in a separable relationship during and after they are dropped. The locking detents are unlocked by a line connected to the collar so that release of the auxiliary anchor can be effectuated by pulling the line. After the auxiliary anchor is unlocked from the main anchor subsequent main anchor drift will pay out the line which is attached to an indicator to show that the main anchor is drifting.
Inventors
- 👤 Edward F Ellison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 13:08
CPC Classifications
B; B63; B63B; B63B21/00; B63B21/22; B63B2021/003; B63B2021/009
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
69 words
A boat anchor drift warning device comprising in combination with a boat anchor: an An auxiliary anchor; means for affixing said auxiliary anchor to said boat anchor in a separable manner comprising: a projection from said boat anchor, and holding means for connecting said projection to said auxiliary anchor; a line affixed to said auxiliary anchor; and means for indicating movement of said line with respect to said boat.
Claim 2
Dependent Claim
69 words
A boat anchor drift warning device comprising in combination with a boat anchor: an An auxiliary anchor; means for affixing said auxiliary anchor to said boat anchor in a separable manner comprising: a projection from said boat anchor, and holding means for connecting said projection to said auxiliary anchor; a line affixed to said auxiliary anchor; and means for indicating movement of said line with respect to said boat.
Claim 3
Dependent Claim
53 words
A boat anchor drift warning device as claimed in claim 1 wherein said means for indicating movement of said line with respect to said boat comprises: a windlass having an eccentric; means beneath said eccentric for detecting when the windlass is rotating; and means attached to said detection means for issuing a signal.
Claim 4
Dependent Claim
58 words
A boat anchor drift warnIng device as claimed in claim 2 wherein said means for sensing rotation of the eccentric of said windlass comprises: a microswitch for actuation by said eccentric of said windlass; and a circuit connected to said microswitch within which a horn is connected with a suitable source of electrical power for driving said horn.
Claim 5
Dependent Claim
49 words
A boat anchor drift warning device as claimed in claim 1 wherein said means for affixing said auxiliary anchor to said boat anchor in a separable manner further comprises: a moving fixture connected to said line for releasing said holding means from said projection upon movement of said fixture.
Claim 6
Dependent Claim
33 words
A boat anchor drift warning device as claimed in claim 4 wherein said catch means comprise: spring biased detents; and said moving fixture comprises a collar for sliding over said spring biased detents.
Claim 7
Independent Claim
82 words
A device for detecting the drift of a boat anchor comprising: an auxiliary anchor; means to separably connect said auxiliary anchor to the boat anchor; means to actuate said separable connection means to permit separation of said auxiliary anchor from said boat anchor; a line attached to said actuation means; a reel mounted to the deck of a boat attached to said line; and means for detecting rotation of said reel to provide a warning when said line is being paid out.
Claim 8
Independent Claim
82 words
A device for detecting the drift of a boat anchor comprising: an auxiliary anchor; means to separably connect said auxiliary anchor to the boat anchor; means to actuate said separable connection means to permit separation of said auxiliary anchor from said boat anchor; a line attached to said actuation means; a reel mounted to the deck of a boat attached to said line; and means for detecting rotation of said reel to provide a warning when said line is being paid out.
Claim 9
Dependent Claim
69 words
A device for detecting the drift of a boat anchor as claimed in claim 6 wherein said means to separably connect said auxiliary anchor to the boat anchor comprises: a projection from said boat anchor; a depression on said projection; means on said auxiliary anchor to affix said auxiliary anchor with respect to said depression; and a moving fixture to release said auxiliary anchor affixing means from said depression.
Claim 10
Dependent Claim
48 words
A device for detecting the drift of a boat as claimed in claim 7 wherein said depression comprises: a hollow with a catch point on said projection; and said auxiliary anchor affixing means comprises a collar in overlying relationship to spring biased members for seating in said depression.
Claim 11
Dependent Claim
59 words
A device for detecting the drift of a boat anchor as claimed in claim 8 wherein said affixing means comprise: spring biased detents formed within the shank of said auxiliary anchor for affixing to said catch point; and said collar is suitably connected for sliding over said spring biased detents to cause them to latch to said catch point.
Claim 12
Dependent Claim
23 words
A device for detecting the drift of a boat anchor as claimed in claim 9 wherein said auxiliary anchor comprises: a bell-shaped anchor.
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) | 1975-09-12 | 1976-03-13 | 1976-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-09-12 | 1980-03-13 | 1980-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-09-12 | 1984-03-13 | 1984-09-12 | $7700.00 | Window Closed / Lapsed |