Bizarre Patents
Cloaking System Using Optoelectronically Controlled Camouflage
A Cloaking System designed to operate in the visible light spectrum, utilizes optoelectronics and/or photonic components to conceal an object within it.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7624967 | Opposed-rope hoist driven telescoping mast An opposed-rope driven telescoping mast assembly includes a stationary support and a longitudinal mast comprising a longitudinal section joined to move relative to the stationary support. A drive assembly drives the longitudinal mast and includes a frame and a rotat... | 12/01/2009 |
| 7410150 | Winch safety switch for a hoist An improved hoist for raising and lowering a weighted object secured to a hoist cable, wherein the improvement comprises a safety switch in series with an up-down switch of the hoist. The safety switch has an actuating member with spaced-apart first and second porti... | 08/12/2008 |
| 7311297 | Electric powered lift with load control A lifting device utilizing a utility winch having an electric motor and cable drum. The cable on the cable drum extends around a pulley located on a load cell beam. Excessive loads will deflect the load cell beam causing a contact on a micro switch to be engaged to ... | 12/25/2007 |
| 7309059 | Hoist apparatus rope sensing device A hoist apparatus (10) including a rope sensing device (14) for detecting rope fouling events. The rope sensing device (14) includes a lever arm (74) having a first end portion (74g), a second end portion (74h)... | 12/18/2007 |
| 7249753 | Winch, particularly for driving an umbrella Disclosed is a winch, particularly for driving an umbrella, comprising a rope drum (48a) which is driven by a hand crank (24) and winds up a rope (28). Functioning of the winch is improved by the fact that said winch is provided with a fe... | 07/31/2007 |
| 7090200 | Actuator An actuator and control algorithm which provide an operator with the ability to intuitively and responsively maneuver heavy work-pieces with ease and precision. The structure of the apparatus may provide a hoist with a compliant sensing system to measure the weight ... | 08/15/2006 |
| 7090055 | Boat lift brake apparatus A boat lift braking system includes a threaded shaft driven by the boat lift motor. A torsion tube disposed about the shaft carries an interiorly threaded nut that interengages the peripheral threads of the shaft. A rotor is mounted to the nut adjacent a brake pad t... | 08/15/2006 |
| 6904864 | Controlled lifeboat deployer A control system to control the descent of a seafaring vessel, such as a lifeboat, into water is disclosed herein. The control system, and an accompanying method, control the descent speed of the seafaring vessel to minimise the possibility of setback after splashdo... | 06/14/2005 |
| 6523806 | Winch mount In order to increase winch safety, power and utility method for using a winch and a method for mounting a winch based on ensuring that the force exerted by the winch cable on the drum rotation axis and the drum rotation axis remains perpendicular througho... | 02/25/2003 |
| 6142448 | Belt hoist To prevent a random coil of and an overwind of a belt with simple structure, a belt hoist includes a random coil preventing member pressed against the belt wound around a winding member to prevent a random coil of the belt, the random coil preventing memb... | 11/07/2000 |
| 6003843 | Belt hoist To prevent a random coil of and an overwind of a belt with simple structure, a belt hoist includes a random coil preventing member pressed against the belt wound around a winding member to prevent a random coil of the belt, the random coil preventing memb... | 12/21/1999 |
| 5664765 | Apparatus and method for pulling cable A primary device placed at the upstream end of a duct and a relay device placed at an access point pull a cable through respective duct segments. The pulling speed of the primary device is controlled by an operator. The pulling speed of the relay device i... | 09/09/1997 |
| 4928925 | Constant tension hoisting member A constant tension hoisting system is provided for raising and lowering an object between a platform and a surface undergoing vertical motion relative to the platform, such as raising and lowering a lifeboat from a seagoing vessel to the sea in rough weat... | 05/29/1990 |
| 4756188 | Method and apparatus for compensating for drilling line stretch in determining equipment depth in a well and for measurement of hookload on the traveling block of a drilling rig An arrangement for measuring the stretch of a wire line used in well drilling operations by first measuring the amount of stretch in the deadline by measuring rotation of the dead sheave which supports the deadline, and multiplying the length of the wire ... | 07/12/1988 |
| 4624450 | Constant tension hoisting system A constant tension hoisting system is provided for raising and lowering an object between a platform and a surface undergoing vertical motion relative to the platform, such as raising and lowering a lifeboat from a seagoing vessel to the sea in rough weat... | 11/25/1986 |
| 4420122 | Lighting device suspending system A telescopically extendable hanging mechanism for suspending a lighting device has a driving mechanism provided with wires for controlling extension of the hanging mechanism. A wire take-up means for winding up or unwinding the wires is adapted for telesc... | 12/13/1983 |
| 4359207 | Emergency stop mechanism for the payload of a lifting mechanism An emergency stop mechanism for a lifting device capable of moving a load along a predetermined path against and with the force of gravity using a primary cable. The emergency stop mechanism includes a secondary cable or line functionally in parallel with... | 11/16/1982 |
| 4334670 | Anchor winch equipment Anchor winch equipment, for a motor boat, a yacht or a small-sized fishing boat, which ensures easy and simple paying out and hauling in of an anchor and whose power is supplied from a battery or a generator provided in said boat or yacht, is characterize... | 06/15/1982 |
| 4294429 | Pulley assembly for improving the cooperation between a winch and a cable actuated thereby In this cable hoisting apparatus at least two pulleys disposed in a common plane have in the one a semi-circular-sectioned groove and in the other a V-shaped groove section, the first pulley receiving the load and the other pulley being responsive to the ... | 10/13/1981 |
| 4226405 | Mechanical safety device for a winch The invention relates to a safety device for winch-type apparatus for moving loads. Two longitudinal elements containing a winch between them are connected by a first transverse element on which two telescopic sleeves are pivotably mounted. A calibrated s... | 10/07/1980 |
| 4147330 | Method for setting down or taking up a load from or upon a loading location by means of a crane and an apparatus for carrying out the method In a method and an apparatus for putting down or taking up a load from or upon a loading location by way of a crane, wherein the crane or the loading location is subjected to substantially irregular vertical movements which change the distance between the... | 04/03/1979 |
| 3994476 | Automatic braking arrangement for a windlass A hoist is described which includes a windlass for taking up and paying out a line which operates a block and tackle. The windlass is provided with a brake which is arranged to operate automatically to prevent unwanted paying out of the block and tackle l... | 11/30/1976 |
| 3934517 | Cable connection with slack cable-brake release for an aerial cableway A cable connection with slack cable-brake release for an aerial cableway, wherein a traction cable and possibly a counter cable are secured to the travelling mechanism or carriage of the aerial cableway and a brake mechanism of the aerial cableway is auto... | 01/27/1976 |
