Did You Know...
...that power steering was invented by independent inventor Francis W. Davis? As chief engineer in the 1920s of the truck division of the Pierce Arrow Motor Car Company, he saw how hard it was to steer heavy vehicles. So that he would be able to keep the profits from his future invention, Davis left his job, rented a small engineering shop in Waltham, Mass., and developed a hydraulic power steering system that led to power steering.
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| Number | Title | Issue Date |
| 7362207 | Electrical switching apparatus and limiter including trip indicator member A limiter includes a housing having a first surface and a second surface, a line terminal, a load terminal, a fusible conductor electrically connected between the line and load terminals and an indicator button disposed proximate the first surface. The button includ... | 04/22/2008 |
| 7314021 | Operation indicator An operation indicator is provided to indicate the open/closed status of device, e.g. a circuit interrupter operable between open and closed operating positions. The operation indicator includes two indicator members having cooperating interleaved or interlaced cons... | 01/01/2008 |
| 7293524 | Indicator device for indicating whether a no-back device is operable An indicator device for use in indicating whether or not a no-back device is operable, the indicator device comprising an indicator member 42 moveable between a first position and a second position, a biassing arrangement 56 being provided to urge the ... | 11/13/2007 |
| 7246790 | Hoist System A hoist system for raising, lowering, or applying a pulling force to an object or equipment attached thereto. The hoist system has a hoist, a hoist adapter unit attached to the hoist, and a pull pin assembly. The hoist has a frame and a line, cable, or chain which i... | 07/24/2007 |
| 7187296 | Miniature fault indicator A rugged, miniature, waterproof and lightweight magnetic latching indicator with an auxiliary switch. The indicator includes a solenoid, an elongated plunger mounted in the solenoid, the plunger supporting a first permanent magnet with the magnet being surrounded by... | 03/06/2007 |
| 6925958 | Driving device including a position indicator This invention relates to a driving device (1) comprising a drive shaft (3) that is rotatably supported in a housing, which driving device includes a position indicator for said drive shaft, wherein a cam (27) is present on the drive shaft, whos... | 08/09/2005 |
| 6834611 | Pest infestation monitoring device with pop-up indicator An indication device for monitoring a presence of a pest in a designated area includes a housing having a longitudinal axis and a plurality of openings therethrough. A trigger is positioned within the housing and is axially aligned with the longitudinal axis. An ind... | 12/28/2004 |
| 6831546 | Impact signaling system for a high-voltage protective device The impact signaling system (9) is used in a high-voltage protective device and has a housing (13), a spring (16) which is arranged in the housing (13) and has a moveable end, an actuator (17) which can be passed out of the housing... | 12/14/2004 |
| 6659037 | Method and apparatus for the evaluation of vacuum insulation panels A vacuum insulation panel comprises a barrier film and a core material and a vacuum detection indicator. The vacuum detection indicator is configured to facilitate the evaluation of the integrity of the vacuum within the vacuum insulation panel. The vacuu... | 12/09/2003 |
| 6572523 | Centrifuge rotation indicator A centrifuge includes a centrifuge housing and a rotor. The housing defines an inner chamber, and the rotor is provided in the chamber. An indicator is provided on the housing. The indicator is constructed and arranged to indicate rotor movement. A rotor ... | 06/03/2003 |
| 6470821 | Method and apparatus for the evaluation of vacuum insulation panels A vacuum insulation panel comprises a barrier film and a core material and a vacuum detection indicator. The vacuum detection indicator is configured to facilitate the evaluation of the integrity of the vacuum within the vacuum insulation panel. The vacuu... | 10/29/2002 |
| 6370981 | Gear indicator for a bicycle A gear indicator for use on a bicycle is provided remotely from the shift operating device. The gear indicator is coupled to a shift operating device via an indicator cable. The gear indicator basically includes a housing with an indicator member slidably... | 04/16/2002 |
| 6357384 | Pig detector A device for indicating the passage of a pig beyond a predetermined location in a pipeline comprising a pig detector connected to a pipeline and communicating with the interior of the pipeline through an opening at the location, a trigger slidably mounted... | 03/19/2002 |
| 6343564 | Ammunition detector A self-contained ammunition round detection unit includes a housing with an indicator mounted within the housing. A probe is coupled to the indicator. A dual set of biasing elements are captivated within the housing. The dual set of biasing elements coope... | 02/05/2002 |
| 6324768 | Ball lock punch retainer and checking gage system A ball lock punch retainer system, including a punch, with a ball receiving grooved seat therein, a punch retainer body, a backing plate, a spring hole located in the retainer body, a ball positioned within said spring hole, a spring located in said sprin... | 12/04/2001 |
| 6302054 | Freezing weather indicator and method A device for indicating freezing weather conditions is easily installed beside a road or highway for signaling motorists. The device includes a fluid container having a spherical visual indicator attached thereto. As the temperature drops the contained li... | 10/16/2001 |
| 6289794 | Indicator for proper heating of food and a method for constructing thereof A device and a method are disclosed for indicating the reaching of a temperature within a predetermined temperature range by heated food. The device includes a transparent sealed container including a first compartment containing a first substance and a s... | 09/18/2001 |
| 5913385 | Visual brake stroke indicator An indicator for determining brake stroke condition on a vehicle braking system comprising: a bracket having an elongated member having at one end an attachment portion located generally at a right angle radius to the elongated member, the bracket mounted... | 06/22/1999 |
| 5857425 | Feed metering apparatus A feeder containing animal feed uses feed removal equipment to remove feed at a known constant rate. This feed metering apparatus is used to indicate the amount of feed remaining in the feeder at any time. This apparatus is operated to move a pointer indi... | 01/12/1999 |
| 5855182 | Floor shifter and console assembly In automobiles incorporating a console-mounted shift lever assembly for an automatic transmission control, a range indicator assembly is attached to the shift lever assembly to form a subassembly. This subassembly is secured in the automobile by attaching... | 01/05/1999 |
| 5852986 | Automatic inflator with status indicators A CO2 cartridge is permanently attached to a cartridge status indicator so that a user need not perform a detailed inspection to determine if the cartridge has been used or not. If the cartridge has been used, the status indicator will so indic... | 12/29/1998 |
| 5707133 | Automobile headlamp adjuster An adjuster mechanism having an aiming device carried on the shaft of the ball stud. The adjuster mechanism includes a gear housing having a track for guiding the aiming device and an indicator for reading the position of the aiming device. The adjuster m... | 01/13/1998 |
| 5603282 | Utility pipe displacement sensor A utility pipe displacement sensor comprises a protective housing and an indicator stick disposed in a vertical position within the housing. The indicator stick is capable of displacement within the housing and is maintained in its vertical position withi... | 02/18/1997 |
| 5537950 | Thermally responsive indicator with organic retaining means An indicator is disclosed for providing an indication that a food item has attained a predetermined temperature. The indicator comprises a barrel having a cavity wherein a plunger is disposed in a retracted position using a retaining material. The retaini... | 07/23/1996 |
| 5455549 | Multi-function button for electronic overload relay An overload relay with a multi-function control button is disclosed herein. The overload relay includes a contactor having a solenoid which holds the contacts of the contactor closed when energized. Power to the solenoid is provided by the power conductor... | 10/03/1995 |
| 5415123 | Web marking device A special marker is disclosed that is affixed to a stationary or moving web near the lateral web edge to designate defective material. When edge trim is removed from the web, the trim removal device also cuts-off the front end of the marker so that the re... | 05/16/1995 |
| 5359353 | Spring-bag printer ink cartridge with volume indicator An ink jet pen supply cartridge having a spring biased ink bag with a visual indication of remaining ink quantity. The spring-bag reservoir tends to collapse laterally as the ink supply decreases due to differential pressure exerted thereto. The spring-ba... | 10/25/1994 |
| 5345685 | Strata movement indicator A strata movement indicator includes at least two lengths of suspension wire respectively for remote and near anchors locatable in the same borehole. Each wire carries a cylinder provided with indicator markings, the cylinders being moveable with respect ... | 09/13/1994 |
| 5305707 | Web marking device A special marker is disclosed that is affixed to a stationary or moving web near the lateral web edge to designate defective material. When edge trim is removed from the web, the trim removal device also cuts-off the front end of the marker so that the re... | 04/26/1994 |
| 5305975 | Flagging apparatus and method An apparatus for representing the state of a condition, the condition having a true state and a false state, the apparatus comprising an indicator having a recognizable feature indicative of the true state of the condition, a cover for covering the indica... | 04/26/1994 |
| 5289702 | Load balance indicator for top loading automatic clothes washing machines The disclosure is of washing machine apparatus including a ring, within the clothes basket, and imbalance indicators coupled thereto and adapted to provide a visual indication to an operator when an imbalance occurs and provides problems in the spin cycle... | 03/01/1994 |
| 5289794 | Magnetically aligned transmission shift indicator A gear range indicator for use with automatic transmissions which is remote from the shift mechanism yet requires minimal adjustment to be made to the mechanical linkage to compensate for variations in the position of the display relative to the shift mec... | 03/01/1994 |
| 5257595 | Flag system A flag signaling system for conveying information. Colored flags are slidably attached to a cassette. The flags can be extended to positions away from the cassette as a means of communicating information. Symbols can also be printed on the flags, thereby ... | 11/02/1993 |
| 5213057 | Position indicating apparatus A position indicator apparatus for a valve of the type having a valve housing and a valve element, includes an actuator spindle fixedly secured to the valve element of the valve and an indicator spindle operatively connected to the actuator spindle. The i... | 05/25/1993 |
| 5070808 | Transmission position indicator with a columnated light system A gear range indicator for use with automatic transmission which is remote from the shift mechanism, yet requires little or no adjustment to be made to the mechanical linkage to compensate for variations in the position of the display relative to the shif... | 12/10/1991 |
| 5026254 | Calibrated pitch change link A calibration device for a pitch change link (10) for a helicopter rotor grip where the link (10) includes a bearing (12) and includes a plurality of sequential reference numbers (22) equally spaced apart and concentrically disposed around the link (10). ... | 06/25/1991 |
| 5014642 | Adjustment mechanism for a transmission position indicator A transmission operator lever mechanism is used to establish the desired operating condition in a transmission. An indicator mechanism with a pointer and indicia is provided to show the selected operating condition. The operator lever is connected with th... | 05/14/1991 |
| 5010962 | Indicating apparatus for a coupling Certain earthworking vehicles are often provided with the ability to change work implements to enable them to perform a variety of operations. In many instances, the coupling mechanism between the work implement and the frame structure of the vehicle that... | 04/30/1991 |
| 4947786 | Overheated-axle indicator device A perilously overheated-axle of an over-the-road motor vehicle can be sensed with a novel temperature responsive gauge of the fusible link and spring-loaded button type. When an over-heated-axle melts the gauge fusible link and propels the gauge spring-lo... | 08/14/1990 |
| 4936247 | Visual and tactile indication of coupling status of an integrated drive generator An improved visual and tactile indicator (30) for indicating the status of a connection between a shaft (14) and a constant speed drive transmission (22) by a coupling mechanism (20) is disclosed. The invention utilizes a first movable member (32) which i... | 06/26/1990 |
