Actor Zeppo Marx patented a "Cardiac Pulse Rate Monitor" in 1969.
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| Number | Title | Issue Date |
| 7080745 | Magnetic coupling and uncoupling system for model railroad rolling stock A model railroad car magnetic coupling and uncoupling system employs pairs of cooperating magnetic couplers that have unique and simplified constructions, and an uncoupler mechanism that is mounted beneath a section of model railroad track and operates automatically... | 07/25/2006 |
| 7070062 | Automatic railway car electrical and pneumatic coupler A railcar coupler which integrates fluid and electrical connectors into one modular unit with increased facility for automatically making such connections when cars are pushed together while achieving compatibility between Janney type and Automatic Intermodal Railwa... | 07/04/2006 |
| 6931995 | Train maintenance automating system An automation system for train maintenance that performs operations related to train maintenance without human intervention is provided. The automation system for train maintenance comprises a refuse reservoir (10), a sewage tank (20), a water tank ( | 08/23/2005 |
| 6910424 | Movable model train car parts to aid model train maneuverability as it travels on model railroad track A model electric train car possessing various movable parts which allow the train car's pivotally-mounted truck and coupler assembly to maneuver around tight curves without interference from model train steps, skirts or other train car parts in close proximity to th... | 06/28/2005 |
| 6206215 | Rail car coupler Disclosed herein is improvement of the standard Type-E or Type-F coupler, which is compatible with the existing standard couplers, for providing automatic uncoupling features. The improved coupler includes a coupler head of the type having standard coupli... | 03/27/2001 |
| 6199709 | Actuating device The invention relates to an actuating device (1), in particular a drive (2), preferably for sequences of motion in the field of model building, with at least one magnetic field producing component (11, 32), in particular a coil (12, 33), for producing a m... | 03/13/2001 |
| 6000564 | Roller equipped uncoupling cam An uncoupling cam is incorporated into a hook-type coupler. Couplers of this variety are typically found on railway transit vehicles, one hook-type coupler being fixed to each end of each transit vehicle. Moving two transit vehicles toward each other so t... | 12/14/1999 |
| 5954211 | Roller equipped uncoupling cam A hook-type coupler for attachment to an end of a railway transit vehicle for joining adjacent ends of a pair of railway transit vehicles wherein the hook-type coupler has a hook member pivotally mounted therein being pivotal between a latch position and ... | 09/21/1999 |
| 5547090 | Apparatus for uncoupling track-guided toy vehicles Apparatus for automatically uncoupling track-guided toy vehicles includes a first coupling element pivotally mounted on one toy vehicle for pivotal movement between a coupling position and an uncoupling position and a second coupling element mounted on an... | 08/20/1996 |
| 5531337 | Automated decoupler for rail cars There is provided an automated rail car uncoupling system that reduces the possibility of injury. The system includes an object locator that detects and locates a locking pin actuator associated with a coupler. Upon confirmation of the location of the act... | 07/02/1996 |
| 5503280 | Timed thrust uncoupling mechanism for passenger transit type railway cars An improved coupler control circuit board which can be positioned in an environmentally protected location for controlling an uncoupling operation of a mechanical type coupler mechanism utilized to connect adjacently disposed ends of a pair of passenger t... | 04/02/1996 |
| 5499728 | Electrically operated hook coupler with manual override An electrically operated hook-type coupler for attachment to an end of a railway transit vehicle for joining adjacent ends of a pair of such railway transit vehicles, in which a gathering core is provided at the forward end of a coupler head, with a hook ... | 03/19/1996 |
| 5423439 | Remote-controlled uncoupling for electric toy and model trains A remote-controlled uncoupling for an electric toy or model train with an electrically operated disengaging mechanism, particularly a hook coupling with coupling hooks, which can be pivoted about a horizontal axis and hooked into a coupling bracket of the... | 06/13/1995 |
| 5350077 | Method and device for coupling a self-propelled truck with a carrying truck Method and device for coupling a self-propelled truck with a carrying truck, wherein the self-propelled truck is provided with a female engagement member having right and left catching spacings, whereas the carrying truck is provided with a male engagemen... | 09/27/1994 |
| 5129529 | Uncoupler lever with a wedge lock An adjustable uncoupling lever with a shiftable wedge lock. The lever includes two longitudinally shiftable rods having parts spaced from one another. The wedge lock is driven between the two rod parts to secure the rods together.... | 07/14/1992 |
| 4768663 | Coupling device for scale models of railway cars A coupling device for scale model railway cars has a hook-shaped coupling element with a free end, a shaft connected to the coupling element, a crosspiece extending horizontally from both sides of the shaft. There is a chamber having a rear wall which def... | 09/06/1988 |
| 4700855 | Automatic coupling for model rail vehicles A coupler for rail vehicles of a model railway is attached to the end of a vehicle along substantially the longitudinal central axis of the vehicle. The coupler is provided with a coupling carrier which has at its free end a coupling plate acting as a buf... | 10/20/1987 |
| 4602717 | Uncoupling lever assembly An uncoupling lever assembly for a railroad car has first and second lever members. A plurality of sleeves are attached to one of the lever members. The other lever member extends through the sleeves in telescoping relation to the one member. Each sleeve ... | 07/29/1986 |
| 4512483 | Model train coupler A model train coupler for a truck having a pocket with an upright pivot pin, the coupler including a stem inserted endwise into the pocket and swingable on the pin, a laterally opening hook extending outwardly from the stem, an actuator depending from the... | 04/23/1985 |
| 4460099 | Telescoping uncoupling lever for railway car couplers Two side-by-side housings each receive a telescoping member therein. Bearings captivated within each housing engage the telescoping members such that the bearings are free to slide both with respect to the housings and the telescoping members. A handle fo... | 07/17/1984 |
| 4335820 | Magnetically-automated uncoupling system for model railroads A magnetically automated delayed uncoupling system consisting of a knuckle positioned magnet actuated coupler and a parallel outside-the-track magnetic force field which permits use of ferromagnetic train wheels without wobble and provides delayed uncoupl... | 06/22/1982 |
| 4228907 | Miniature railroad uncoupling apparatus A portable uncoupling device comprising a raised resilient strap attached to a self locating base and used to uncouple miniature railroad cars where the two couplers connecting two railroad cars each have one lift pin located on opposite sides of the cent... | 10/21/1980 |
| 4219123 | Coupler for toy and model railway cars A coupler for toy and model railway cars includes a coupler knuckle adapted to engage a complimentary knuckle on an adjacent car. The knuckle is pivotally mounted and is adapted to pivot between a lower position substantially parallel to a trackway and an... | 08/26/1980 |
| 4216871 | Car uncouplers for model train tracks This invention relates to a device for uncoupling the cars of model trains travelling on tracks assembled on conventional cork roadbeds. The uncoupler disclosed and claimed operates from a normal, inactivated position in which no parts extend between the ... | 08/12/1980 |
| 4195742 | Coupler for toy and model railway cars A coupler for toy and model railway cars includes a pivotable coupler member having a coupler knuckle adapted to engage a complementary knuckle on an adjacent car. The coupler member is mounted for pivoting movement between a lower position substantially ... | 04/01/1980 |
| 4083309 | Continuous transport systems A continuous transport system characterized in that the vehicles providing passenger or goods transportation are passive vehicles without self-contained motors or braking devices, the drive for these vehicles when formed into trains being provided between... | 04/11/1978 |
| 4008811 | Uncoupling device for central buffer couplings on railroad vehicles An uncoupling device for a central buffer coupling on a railroad vehicle comprises an operating mechanism which has one end pivotally mounted adjacent the tracks on which the vehicle is positioned and on the other end is provided with an uncoupling hook w... | 02/22/1977 |