|
|  Get related patents on CD |
| United States Patent | 5215030 |
| Link to this page | http://www.wikipatents.com/5215030.html |
| Inventor(s) | Conti; James A. (520 Center Hill Rd., Pittsburgh, PA 15239) |
| Abstract | An adjustable anchor comprising a vertical cylinder including a helical
spring supported on a puck depending from a vertical rod terminating in an
eye projecting above the cylinder. Three anchors 120.degree. apart are
pivotally supported by the puck so that upward pull on the eye by a rope
will effect progressive retraction of the three anchors into corresponding
openings in the cylinder against the resistance of the helical spring. An
internally threaded cap of the cylinder screws onto external threads of
the cylinder to adjust the tension of the spring. |
| |
|
Title Information  |
|
|
|
|
|
|
| Publication Date |
June 1, 1993 |
|
|
|
|
|
| Filing Date |
September 30, 1992 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Title Information  |
|
|
References  |
|
|
| *references marked with an asterisk below are user-added references |
|
U.S. References |
|
|
|
|
|
|
U.S. References |
|
|
Foreign References |
|
|
|
|
|
|
Foreign References |
|
|
Other References |
|
|
|
|
|
|
Other References |
|
|
|
|
|
References  |
|
|
|
|
|
|
|
|
|
|
|
Public's "Guesstimation" of Royalty Value
| |
|
|
|
|
|
|
|
|
|
|
|
|
Market Review  |
|
|
Technical Review  |
|
|
Claims  |
|
|
I claim:
1. An adjustable anchor for boats comprising a vertically extending
cylinder having an externally threaded top portion and an internally
threaded cap screw threaded to said top portion, three vertical slots
120.degree. apart at the bottom portion of said cylinder, a helical spring
contained within said cylinder, an anchor rope eye projecting upwardly of
said cap, a vertically extending rod in said cylinder and integrally
secured to said eye, a plunger puck forming a support for and secured to
the bottom of said helical spring, three pivots 120.degree. apart
supported by said plunger puck, and three anchors pivotally supported on
said three pivots, whereby upwardly pull on said eye will effect
progressive retracting of said anchors into said cylinder through said
three slots. |
|
|
|
|
Claims  |
|
|
Description  |
|
|
This invention relates to an adjustable anchor.
BACKGROUND OF THE INVENTION
Anchors have the disadvantage of becoming hung-up or snagged to the bottom
of lakes, rivers and oceans.
SUMMARY OF THE INVENTION
An object of the invention is to provide an adjustable anchor that will
overcome the above-named disadvantages of existing anchors.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a top view of an adjustable anchor embodying the present
invention;
FIG. 2 is an elevational view thereof showing the arms in the normal fully
extended position;
FIG. 3 is a bottom view thereof;
FIG. 4 is a vertical cross-sectional view taken along line 4--4 of FIG. 1;
FIG. 5 is an elevational view showing the arms fully retracted into the
anchor body; and
FIG. 6 is an elevational view showing the arms retracted half way into the
anchor body.
DESCRIPTION OF THE PREFERRED EMBODIMENT
Referring to FIGS. 1 to 4 inclusive, numeral 1 denotes a cover or mall
insert bushing of an internally threaded cap 2 which screw threadedly
engages threads 3 of a cylinder 4 having three lower openings through
which emerge anchor arms 5 carrying rigidly connected anchors 6, and which
anchor arms are tensioned by a helical spring 9.
Such tensioning occurs as the result of clockwise rotation of cap 2 (FIG.
4) whereby its internal threads engage threads 3 effecting lowering of cap
1.
Anchor rope eye 7 remains stationary during such lowering and constitutes a
means for tying the end of the line suspended by the boat or ship and for
supporting a stem integrally secured to plunger puck 10.
Spring 9 rests on a plunger puck 10 integrally supporting three equidistant
anchor pivots 12 resting on pillar 5.
In operation, the anchor is lowered onto the bottom of the lake, river or
ocean in its fully extended position of anchors 6 as shown in FIG. 2.
When it is desired to retract anchors 6 from said bottom, pulling of the
line will first retract anchors 6 to the position shown in FIG. 6 and if
that is not sufficient to dislodge the anchors from said bottom, the line
is pulled with greater force to the fully retracted position shown in FIG.
5 to surely prevent snagging and to surely remove the anchors 6 from said
bottom.
Under severe water conditions such as high waves or high winds, the anchor
arms will automatically retract and reset, thus letting the boat move with
high waves and winds.
The great majority of presently used anchors would keep the boat locked to
the bottom in these severe conditions, creating a great possibility of
swamping the boat if the anchor could not be broken loose or the anchor
rope cut free. The present invention totally eliminates these dangerous
conditions.
The present invention is designed to work with several sizes of boats or
ships. This is done by turning the tension adjustment all the way out for
small boats and slowly turning the adjustment in as the size of the boats
increase.
* * * * *
|
|
|
|
|
Description  |
|
|
|
|
|