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The ice cream cone was invented at the St. Louis Worlds Fair by Ernest Hamwi in 1904. His waffle booth was next to an ice cream vendor who ran short of dishes. Hamwi rolled a waffle to hold ice cream and the cone was born.
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| Number | Title | Issue Date |
| 7238111 | Damper unit with torque limiter The invention eliminates the need of handling an engine in a process for assembling a torsion damper which couples the engine with a power transmission system and a torque limiter. In a damper unit with a torque limiter positioned between an output shaft of an engin... | 07/03/2007 |
| 7044281 | Clutch engagement control system A clutch engagement control system 100 for engaging a friction clutch 1 by means of an actuator 3, can comprise a magnetostrictive sensor 71 for detecting the state of power transmission over the friction clutch 1, and can be confi... | 05/16/2006 |
| 6575284 | Clutch of a beach buggy The clutch of a beach buggy. The clutch is provided with a friction enduring resilient annular member closely positioned between an actuating member and the outer cover of the clutch. Thus, when the engine of a beach buggy is started, the actuating member... | 06/10/2003 |
| 6264009 | Multi-stage wet disc brake A multi-stage wet disc brake assembly has a first actuator is supported within a housing and moveable toward point of friction discs. A second actuator coacts with the first actuator and is moveable relative to the first actuator toward the friction discs... | 07/24/2001 |
| 5967274 | Wrap spring clutch/brake assembly having soft start and soft stop capabilities A wrap spring operating mechanism for use in a random start/stop clutch, brake, or combined clutch/brake assembly limits the rate of acceleration or deceleration of the second member relative to the first member when the assembly is engaged. The assembly ... | 10/19/1999 |
| 5505286 | Friction clutch A motor vehicle friction clutch having a flywheel, an annular plate attached coaxially to the flywheel and rotatable with the flywheel and which is biased away from the flywheel by a first spring; a clutch cover assembly secured to the flywheel and compri... | 04/09/1996 |
| 5413202 | Friction generating torque transmitting device A clutch plate wherein a hub carries and is surrounded by a disc which, in turn, carries and is surrounded by an annulus of pairs of partially overlapping resilient sector-shaped carriers for two annular friction linings. The carriers are disposed axially... | 05/09/1995 |
| 5385224 | Clutch cover assembly A clutch cover assembly comprising, in addition to a clutch cover containing a pressure plate and a diaphragm spring, a spring washer in location and retainment such that it provides cushioning against clutch engagement shock. In a recess in the pressure ... | 01/31/1995 |
| 5314052 | Progressive dry friction clutch plate A dry friction clutch plate is of the kind having a metallic support plate with ring-shaped friction pads arranged on either side of it. A ring-shaped compression element is arranged between the friction pads, this ring-shaped element being of a cellular ... | 05/24/1994 |
| 5283738 | Process and device for controlling a clutch A process for controlling a clutch incorporated between the driving engine (M) and the gearbox (G) of a motor vehicle, in which the clutch is a bridging clutch (WK) of a hydrodynamic unit or a separating clutch (K) in a driving train. The process uses dev... | 02/01/1994 |
| 5213187 | Device relating to a semi-automatic clutch for vehicles The invention relates to a device related to motor driven vehicles such as tractors for semi-automatic engagement and disengagement of the drive. According to the invention an actuating cylinder (12) is arranged to act on the clutch of the vehicle, which ... | 05/25/1993 |
| 5065849 | Method for correcting data used for a clutch control operation In a method for correcting clutch data used for controlling the engaging/disengaging operation of a friction type vehicle clutch, the meet position data among the clutch data is updated by a learning operation at each operation of a predetermined operatio... | 11/19/1991 |
| 5060769 | Slip control device of a fluid coupling A slip control device of a fluid coupling is mounted in an automatic transmission of the type having a lockup clutch for directly coupling the input side and the output side of the fluid coupling to each other and a hydraulic control circuit for adjusting... | 10/29/1991 |
| 4830163 | Centrifugal clutch A centrifugal clutch comprises a driving plate having oppositely facing surfaces secured to an input shaft operatively connected to a driving source, a cylindrical bottomed drum detachably secured to an end, projecting from the input shaft, of an output s... | 05/16/1989 |
| 4796738 | Controllable clutch A mechanical clutch which is selectively engageable and disengageable. Interposed between an input member and an output member are a plurality of clutch rollers. In disengaged mode they rotate freely, relative to the members. In engaged mode they bunch to... | 01/10/1989 |
| 4744448 | Diaphragm spring clutch cover assembly A clutch cover assembly includes a diaphragm spring acting on a pressure plate through a fulcrum ring which encircles the clutch axis and is disposed in a groove in the pressure plate. The fulcrum ring is a resilient tube. During clutch re-engagements, th... | 05/17/1988 |
| 4712658 | Method of automatically operating a clutch release bearing according to the speeds of the shafts coupled by an associated clutch In a method of automatically operating a clutch release bearing to re-engage a friction clutch adapted to transmit between first and second shafts a torque conditioned by the action of the release bearing on a clutch release device associated with the clu... | 12/15/1987 |
| 4623055 | Hydraulic clutch A hydraulic clutch having an annular coned disc spring interposed between a hydraulic piston and a friction material for engaging/disengaging the clutch. An inner peripheral end of the coned disc spring is supported at a position apart from a piston on a ... | 11/18/1986 |
| 4498552 | Lawn mower friction drive mechanism A friction drive mechanism is provided for machinery such as a lawn mower wherein a driven wheel is provided with an outer ring that slips upon initial engagement with a driving disc. The coefficient of friction between the inner surface of the ring and t... | 02/12/1985 |
| 4460076 | Electromagnetic spring clutch An electromagnetic spring clutch comprises a driving member, to be driven by a belt, and a driven member, which is connected to a load shaft, and to which revolving power is to be transmitted from the driving member by a clutching coil spring. One end of ... | 07/17/1984 |
| 4037696 | Dynamic tooth clutch A dynamic tooth clutch, interposed between two rotating members for coupling same, includes a first collar slidably mounted on one of the members and has a plurality of equally angularly spaced axially extending radial first teeth. A second collar is fixe... | 07/26/1977 |
