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A self defense weapon formed as a memo pad and which is easily held by a person's fingers, therefore making it possible to provide protection from a mugger and also to quickly and easily write a record or a message without failure of missing or forgetting significant information under a stressful situation.
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| Number | Title | Issue Date |
| 4493662 | Shaft connecting device for boat propellers A shaft connecting device for the outboard drive of a marine engine consisting of a pair of shafts having a splined connection. A seal is fixed to one of these shafts for providing a seal to this shaft and has a portion sealingly engaged with the second s... | 01/15/1985 |
| 4459873 | Marine propulsion system A propulsion transmission for a ship having a reversibly driven propeller shaft with a fixed pitch propeller and a torque converter of the single stage and fixed housing type for driving the propeller in the reverse direction. A planetary gear system is p... | 07/17/1984 |
| 4458799 | Marine propulsion control system including maneuvering brake An improved control system is disclosed for air actuated ahead and astern clutches, an engine speed governor, and a propeller shaft brake of a marine propulsion system. The control is actuated by a throttle lever which is moved from a neutral position to ... | 07/10/1984 |
| 4451238 | Shaft brake for marine propulsion system A marine propulsion system for a water craft comprises a relatively large engine or power plant and a power transmission including an output shaft for driving the propeller. The power transmission includes forward and reverse shafts, gear trains between t... | 05/29/1984 |
| 4439163 | Outboard motor with interlock mechanism for transmission and for starting mechanism Disclosed herein is an outboard motor comprising a steerable and tiltable propulsion unit including an engine, a speed control mechanism movable from an idle speed setting to range of advanced speed settings, a starting mechanism operable to start the eng... | 03/27/1984 |
| 4428734 | Planing-hull type boats and power drives therein A boat drive for boats having planing hulls. The boat drive includes a single prime mover or engine that drives, as an inboard drive, a pair of marine screws or propellers that are secured to respective shafts. The engine is located rearmost in the boat p... | 01/31/1984 |
| 4408994 | Transom mounted marine propulsion device with fore and aft crankshaft and power shaft Disclosed herein is a marine propulsion device comprising a power head adapted to be fixedly mounted to a boat hull and including an internal combustion engine having a crankshaft which extends fore and aft and horizontally when the power head is boat mou... | 10/11/1983 |
| 4406633 | Power take-off gearing for assembly at a marine vessel drive or propulsion system With this power take-off gearing, intended to be installed at a propulsion system or drive of a marine vessel, there can be taken-off part of the vessel's drive output at one or a number of auxiliary drive units. The drive or propulsion system of the vess... | 09/27/1983 |
| 4403970 | Marine propulsion unit having ignition interruption means to assist transmission shifting Ignition pulses derived from an engine ignition coil primary are fed to the input of an ignition interruption circuit that employs an integrated circuit timer. The state of the output terminal of the timer is governed by an RC time constant circuit and by... | 09/13/1983 |
| 4400163 | Marine propulsion device including an overdrive transmission The overdrive transmission for a marine propulsion device includes a first drive gear mounted for common rotation with an input shaft connected to a power source, such as an internal combustion engine, a first driven gear mounted for common rotation with ... | 08/23/1983 |
| 4397198 | Marine transmission assembly system A reversing double cone clutch drive assembly for a boat comprising a horizontal input shaft, a vertical intermediate output shaft, a first housing provided with an opening in a side wall opposite to the input shaft and an opening in a bottom wall through... | 08/09/1983 |
| 4392832 | Steering and propulsion system for marine use A universal steering and propulsion unit for marine craft utilizes a power train which includes a differential gearing unit with control of the power delivered being accomplished through selective braking of one side of the differential. Steering may be a... | 07/12/1983 |
| 4383829 | Drive assembly for inboard speedboat A high performance speedboat with a planing type hull and incorporating a drive mechanism having a one or two-speed-forward, step-up, V-gear, hydraulic transmission, which connects the engine drive shaft and the propeller shaft in V-drive structure. The p... | 05/17/1983 |
| 4382797 | Transom mounted marine propulsion device with lateral crankshaft and power shaft Disclosed herein is a marine propulsion device comprising a power head adapted for mounting to a boat transom and including an engine having a crankshaft extending horizontally and parallel to the transom when the engine is boat mounted, a cross shaft mou... | 05/10/1983 |
| 4382796 | Transom mounted marine propulsion device with vertical crankshaft and tiltable lower unit and rudder Disclosed herein is a marine propulsion device comprising a power head including an internal combustion engine having a vertical crankshaft with a lower end having fixed thereon a bevel gear, a lower unit including a rotatably mounted propeller shaft carr... | 05/10/1983 |
| 4378219 | Outboard engine An outboard engine with an automatic clutch to be used for a fishing boat arranged between the crankshaft of the engine and the propeller driving shaft. The automatic clutch comprises a main centrifugal clutch mechanism which is to be engaged at a revolut... | 03/29/1983 |
| 4368048 | Ship S drive system A propulsion and drive system for a ship includes an engine, a drive train with transmission gear and main clutch, and a propeller shaft. An auxiliary equipment shaft is connected to that drive train via two branches, geared to the drive on opposite sides... | 01/11/1983 |
| 4360349 | Marine transmission A marine transmission comprising a gear box (7), a coupling (7) for connection of the gear box (2) to a propulsion machinery (2) and a propeller shaft (3) for transmitting drive force to a propeller (3). The propeller shaft is journalled in two radial bea... | 11/23/1982 |
| 4351635 | Drive system for marine vessels Both gas turbines of a drive system for marine vessels can be selectively connected by related first clutches with drive pinions and during so-called cruising travel, where only one drive unit or machine is operative, additionally via a gearing train with... | 09/28/1982 |
| 4344760 | Marine propulsion system A marine propulsion system for a cruising boat or the like which utilizes two engines, one of the engines having substantially more power than the other. The propulsion system provides for twin propellers and propeller shafts and either engine (but not bo... | 08/17/1982 |
| 4343612 | Outboard motor including a two speed transmission Disclosed herein is an outboard motor including a power head having an engine, a propulsion leg extending downwardly from the power head, an input shaft housed in the propulsion leg and driven by the engine, a drive shaft housed in the propulsion leg, a p... | 08/10/1982 |
| 4331432 | Hydraulically actuated two-speed transmission for a marine propulsion device Disclosed herein is a marine propulsion device including an input shaft drivingly connected to a power source, a lower unit having a rotatably mounted drive shaft extending in coaxial relation to the input shaft, a rotatably mounted propeller shaft carryi... | 05/25/1982 |
| 4323354 | Two-speed automatic transmission for a marine propulsion device Disclosed herein is a marine propulsion device including an input shaft drivingly connected to a power source, a lower unit having a rotatably mounted drive shaft extending in coaxial relation to the input shaft, and a propeller shaft rotatably mounted in... | 04/06/1982 |
| 4318702 | Shifting mechanism for outboard motors An improved drive mechanism for an outboard motor which utilizes a shifting mechanism for selective movement between idle and forward and reverse modes. In a conventional construction, a drive shaft pinion rotates constantly and drives a pair of opposed b... | 03/09/1982 |
| 4311472 | Marine propulsion system for two propellers Two separately operable turbines are regularly connected individually to two propellers, via reducing gears in each instance, whereby an intermediate shaft is included in each such power train. These intermediate shafts are interconnected via an interconn... | 01/19/1982 |
| 4309914 | Controlled transmission system A ship drive system with main engine, main transmission and propeller shaft is supplemented by a transmission branch permitting power transmission in both directions. The branch includes an auxiliary engine, an a.c. generator selectively connected to that... | 01/12/1982 |
| 4305710 | Ship propulsion transmission having a torque converter for driving a fixed pitch propeller in reverse A propulsion transmission for driving a fixed pitch propeller of a ship, the transmission including a prime mover, that is a power source, such as a gas turbine engine, or a diesel engine for example, and also having a disengageable clutch between the pri... | 12/15/1981 |
| 4303400 | Marine propulsion device In the marine V-drive or similar drive system, a novel gearing is employed which provides a bend or turn of power transmission path toward a rearwardly and downwardly inclined propeller shaft in a compact fashion. The gearing comprises a pair of mutually ... | 12/01/1981 |
| 4302196 | Marine propulsion unit including propeller shaft thrust transmitting means Disclosed herein is a marine propulsion device including a drive shaft housing mounted for vertical swinging movement about a horizontal axis relative to a boat, a propeller shaft rotatably mounted in the drive shaft housing and having an axis of rotation... | 11/24/1981 |
| 4293304 | Flexibly mounted drive arrangement for ships In a drive arrangement for a ship, a flexibly mounted drive unit provides the torque for a propeller shaft. The propeller shaft can be supported in a flexibly mounted thrust bearing. A drive shaft interconnecting the drive unit and the propeller shaft inc... | 10/06/1981 |
| 4276034 | Stern drive gear box and clutching arrangement Disclosed herein is a stern drive unit including a stationary housing adapted to be fixed relative to a boat hull and a movable housing mounted on the stationary housing for pivotal movement about a tilt axis which is substantially horizontal when the sta... | 06/30/1981 |
| 4273545 | Marine propeller unit A marine propeller unit having a propeller (1) mounted on a horizontal propeller shaft (2) which is journalled in a gear housing (3), which is fixedly connected to a hollow strut (4) whose upper end is mounted in the bottom of a water-going vessel for rot... | 06/16/1981 |
| 4265625 | Z-drive for watercrafts A lid for an upper housing part enclosing a part of a Z-drive for watercrafts. A removal of the lid provides access to an articulated joint coupling to an input shaft to the upper housing part to the output of a drive motor mounted inboard of the watercra... | 05/05/1981 |
| 4242979 | Screw propeller with no shaft boss and ship thruster using such screw propeller A propeller with no shaft boss comprising a substantially cylindrical rotatable member and several propeller blades extending radially of the cylindrical member close to the center axis thereof, and a ship thruster system adapted with the propeller having... | 01/06/1981 |
| 4235183 | Marine propulsion device including propeller protection means Disclosed herein is a marine propulsion device including a lower unit having a gear case, a laterally extending anti-cavitation plate extending above a propeller carried on a propeller shaft rotatably mounted in the gear case, and a pair of generally flat... | 11/25/1980 |
| 4218955 | Pressure actuated shifting mechanism An apparatus for delivering power to a marine propulsion device comprises an engine, a propeller, and a transmission which operatively connects the engine with the propeller and which is operative between a neutral position and a drive position. The appar... | 08/26/1980 |
| 4188837 | Fuel economizing drive system for naval and merchant ships The system permits selective combining of one of a plurality of prime movers with a plurality of propeller shafts by means of a transverse chain drive between the propeller shafts to enable efficient multi-screw ship operation with one engine.... | 02/19/1980 |
| 4173939 | Two-speed transmission Disclosed herein is a marine propulsion device incorporating a two-speed transmission including a first drive gear which is mounted for common rotation with an input shaft drivingly connected to an engine and which meshes with a first driven gear mounted ... | 11/13/1979 |
| 4153002 | Marine gear drives A marine gear drive has two drive pinions for coupling to respective high-speed and low-speed engines and both pinions connected through intermediate gears to a common larger gear adapted to be coupled to a propeller shaft. The drive pinions, intermediate... | 05/08/1979 |
| 4137862 | Lift control device for propeller drive systems on watercrafts An improved lift control in a steerable propeller or Z-drive for watercrafts. The drive includes a transmission shaft which extends from the engine to a point below the water level and to the propeller. The transmission shaft is arranged in the housing. F... | 02/06/1979 |
