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"The abolishment of pain in surgery is a chimera. It is absurd to go on seeking it...knife and pain are two words in surgery that must forever be associated in the consciousness of the patient."
Dr. Alfred Velpeau, French surgeon ; 1839
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| Number | Title | Issue Date |
| 7121391 | One-way clutch A one-way clutch. The one-way clutch includes a passive member, an active member, and a rolling member. The passive member has an outer circumferential surface and a sliding portion. The sliding portion extends from the outer circumferential surface to the interior ... | 10/17/2006 |
| 6946748 | Inertia wheel coupled with a leverage transmission An apparatus is provided which includes an inertia wheel rigidly attached to a center axle, such that the wheel and axle adapted to unitarily rotate about a center axis. An axle support is adapted to rotatably support the center axle such that the inertia wheel and ... | 09/20/2005 |
| 6900610 | Apparatus, methods, and articles of manufacture for a terminator positioning system The invention is a system for controlling the position of a movable member moved by a prime mover by monitoring the position of the movable member; generating position information based upon this monitoring; and controlling the prime mover based upon the position in... | 05/31/2005 |
| 4953415 | Arrangement for converting reciprocating motion into even rotational motion The invention relates to an arrangement for converting reciprocating motion into even rotational motion. The arrangement comprises a frame (1), a flywheel (2), a pull member (3) attached to the flywheel by means of a free gear mechanism (4), and a brake b... | 09/04/1990 |
| 4807896 | Operator powered skateboard An operator powered skateboard including a platform, a drive assembly mounted to the platform about a pivot axis for axial displacement. The drive assembly including an external power assembly engaging a skateboard axle for causing rotation of the axle in... | 02/28/1989 |
| 4655098 | Drive mechanism for a circuit breaker using eccentric member and directional lock A drive mechanism for a circuit breaker has a spring which is to be tensioned by means of a shaft. On said spring sits a clamp-roll freewheel as a directional lock, whose outer part is connected via a flexible strip traction member to one or more eccentri... | 04/07/1987 |
| 4637152 | Rotary drive mechanism for energizing toys, kinetic sculptures, or the like A rotary drive mechanism for toys, kinetic sculptures, and the like, employs a pawl and ratchet mechanism to transmit driving torque between a driving wheel and a driven inertia wheel. The driving wheel may itself be driven by means of a drive string that... | 01/20/1987 |
| 4453729 | Occupant propellable wheelchair A wheelchair having a frame capable of supporting the occupant includes a plurality of wheels including two driving wheels. Left and right side levers are mounted on the wheelchair such that the tops of the levers can be moved back and forth reciprocally ... | 06/12/1984 |
| 4354402 | Volumetric apparatus with improved drive system The invention pertains to rotary volumetric apparatus comprising a stationary framework and a rotary assembly mounted thereon. The rotary assembly includes a rotary shaft. The apparatus further includes a reciprocating drive engine and a driven member con... | 10/19/1982 |
| 4271712 | Variable speed drive unit An elongate flexible power transmission member, stationarily affixed at one end and secured to tension biasing means at the other end, is engaged with a unidirectional drive mechanism. Reciprocating power input means angularly deflect a section of the pow... | 06/09/1981 |
| 4223809 | Dispensing device A wall or table-mounted cream or paste dispensing device which includes a mounting base and a cooperating brush holder and cover and further characterized by a travelling carriage which is fitted with a roller to effect collapse of a toothpaste or other c... | 09/23/1980 |
| 4154121 | Clutch mechanism A unidirectional clutch mechanism for use in a toy vehicle or the like having an inertia motor energized by a spring-return drawstring mechanism having a drive spool receiving the drawstring and the return spring, the drive spool having a drive disc porti... | 05/15/1979 |
| 4082267 | Bilateral isokinetic exerciser A proportioned resistance exercising apparatus capable of exercising two limbs synchronously or separately with a single resistance mechanism. Two limb-engageable drive input devices are connected through one-way clutches to a single rotary shaft, which i... | 04/04/1978 |
| 3997766 | Rotary indexing mechanism Several embodiments of a rotary indexing mechanism having either an angularly reciprocable or rectilinearly reciprocable input, an output rotary friction drum and a one-way drive interconnect system between the input and friction drum comprising a drive l... | 12/14/1976 |
