DE4326313A1 - Method and arrangement for the electrical release of mechanically stored power for unlocking - Google Patents

Method and arrangement for the electrical release of mechanically stored power for unlocking

Info

Publication number
DE4326313A1
DE4326313A1 DE4326313A DE4326313A DE4326313A1 DE 4326313 A1 DE4326313 A1 DE 4326313A1 DE 4326313 A DE4326313 A DE 4326313A DE 4326313 A DE4326313 A DE 4326313A DE 4326313 A1 DE4326313 A1 DE 4326313A1
Authority
DE
Germany
Prior art keywords
electrical
method
unlocking
arrangement according
further characterized
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
DE4326313A
Other languages
German (de)
Inventor
Rolf Neusel
Original Assignee
Rolf Neusel
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Rolf Neusel filed Critical Rolf Neusel
Priority to DE4326313A priority Critical patent/DE4326313A1/en
Publication of DE4326313A1 publication Critical patent/DE4326313A1/en
Application status is Withdrawn legal-status Critical

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05BLOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B77/00Vehicle locks characterised by special functions or purposes
    • E05B77/02Vehicle locks characterised by special functions or purposes for accident situations
    • E05B77/12Automatic locking or unlocking at the moment of collision
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05BLOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B65/00Locks or fastenings for special use
    • E05B65/10Locks or fastenings for special use for panic or emergency doors
    • E05B65/104Locks or fastenings for special use for panic or emergency doors actuated in response to heat, e.g. with fusible element, bimetal, memory shape or swelling material
    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05GCONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
    • G05G15/00Mechanical devices for initiating a movement automatically due to a specific cause

Abstract

The object of the invention is the mechanical unlocking, for example, of door locks on motor vehicles following the end of an accident. For this purpose, the necessary mechanical energy is obtained by means of the release of a pre-tensioned spring. Release is carried out as a result of severing a fusible point by means of a short electrical fusing current surge, which is taken from an electrical store. Vibration sensor, retriggerable switching electronics, store and reverse flow diode can be assigned individually to each fusing point and thus to each door lock, since these parts are of small construction and are cheap. As a result, in the case of failure of the on-board power supply, caused by an accident, each door lock can be unlocked independently of the others. This is only possible since only very short-term low electrical energy is needed for the fusion process, while the energy released in the pre-tensioned spring effects the mechanical unlocking actuation.

Description

Bekanntes known

Zur Entriegelung insbesondere von Fahrzeugtüren im Falle eines Unfallgeschehens sind mehrere Verfahren und Anordnungen bekannt geworden, denen jedoch meist erhebliche Nachteile anhaften. In particular for unlocking vehicle doors in the event of accidents, several methods and arrangements are known, but which adhere most significant drawbacks. Die wesentlichsten Nachteile sind vorzeitige Entriegelung noch während des Bewegungsablaufs, Versagen der Entriegelung wegen Bordnetzausfall und unbegründete Entriegelung durch Erschütterungen, die nicht durch Unfall verursacht sind. The main disadvantages are premature release even during movement, failure of release for onboard power failure and unfounded unlocking by vibrations that are not caused by accident.

Erfindungsgedanke inventive idea

Die Entriegelung muß für jede Tür einzeln und mit jeder Tür zugeordnetem System erfolgen, ohne daß der Ausfall des elektrischen Bordnetzes den Ent riegelungsvorgang stören kann. The unlocking must individually for each door and carried associated with each door system without the failure of the vehicle electrical system can interfere with the lock-out process Ent. Die Entriegelung darf nicht schon während des unfallbedingten Bewegungs ablaufs erfolgen, sondern erst nach Eintritt der endgültigen Ruhelage. The release must not be already flow during the accidental movement, but only after entry of final rest.

Die Erfindung benennt dazu folgende Bestandteile und Funktionen: The invention will appoint the following components and functions:

Die mechanische Entriegelung muß mit Mitteln erfolgen, die zufolge ihrer Einfachheit das Minimum an Stör anfälligkeit sowohl aus zeitbedingten Einflüssen, wie etwa Korrosion, wie aus unfallbedingten Gründen verwirklichen. The mechanical release must be made by means which, according to its simplicity, the minimum of interference susceptibility of both time-related effects such as corrosion, as realized from accidental reasons. Dazu ist vorgesehen, eine mechanische Feder derart zu spannen, daß die in ihr gespeicherte Leistung ausreicht, einen wie auch immer gearteten Riegel zu lösen, wenn die Arretierung der gespannten Feder elektrisch freigegeben wird. For this purpose, it is provided a mechanical spring to tension such that the sufficient power stored in it, to dissolve a whatsoever bar when the locking of the tensioned spring is electrically released. Die einfachste vorgesehen Bewirkung der Freigabe ist mittels einer Sollschmelzstelle vorgesehen. The simplest provided effecting the release is provided by a target melting point. Die Feder wird in der gespannten Lage gehalten durch eine Schmelzstelle, die derart ausgelegt ist, daß der kurzzeitige aber starke Entladestrom eines elektrischen Speichers das Abschmelzen und damit einfachst die Freigabe bewirkt. The spring is in the cocked position held by a fusion point, which is designed such that the brief but strong discharge of an electric memory effect the melting and thus releasing the simplest. Als elektrischer Speicher ist - je nach Aufwandsrahmen und angestrebter Lebensdauer - ein chemischer Kondensator, ein nichtchemischer Konden sator oder eine aufladbare Anordnung von Zellen bekannter Art vorgesehen. a chemical capacitor, a non-chemical condensate sator or a rechargeable array of cells of known type provided - as an electrical memory is - depending on the effort frame and desired service life. Wegen optimaler Konstanz ist ein MP Kondensator zu bevorzugen. Because optimal consistency is preferable a MP capacitor.

Für die elektrische Freigabe der Feder ist auch die Anwendung einer durch den Entladestromstoß betätigende Sperrklinke vorgesehen. also the application of a operated by the Entladestromstoß pawl for electrical release of the spring is provided. Dabei sind jedoch mehrere, der Sollschmelzstelle nicht anhaftende Fehler quellen unvermeidbar, so zum Beispiel Klemmen, Korrosion, Verkleben, Verbiegen. However, several of the desired melting point are not adhering error sources unavoidable, such as terminals, corrosion, adhesion, bending.

Da die Entriegelung nicht vorzeitig erfolgen darf, ist eine elektrische Anordnung vorgesehen, die erst um einige Sekunden nach Ende des unfallbedingten Bewegungsablaufs das Entriegelungssignal liefert. Since the unlocking may not take place prematurely, an electrical assembly is provided which supplies the unlock signal only by a few seconds after the end of accidental movement sequence. Dazu ist eine sogenannte rücktriggerbare elektri sche Anordnung vorgesehen, die bewirkt, daß beispielsweise mehrere innerhalb der vorgesehenen Verzögerungszeit aufeinander folgende Stöße jeweils den Neubeginn der Verzögerungszeit bewirken und damit die Abgabe des Entriegelungssignals solange verhindern, bis kein weiterer Stoß mehr erfolgt ist. For this purpose, a so-called rücktriggerbare electrical specific arrangement is provided, which causes for example, several within the prescribed delay time successive shocks each effect the new start of the delay time and thus prevent the delivery of the unlocking until no further collision more is done. Damit ist sichergestellt, daß nicht während des Unfallablaufs, mag er auch über längere Zeit erfolgen, entriegelt werden kann. This ensures that not during the accident sequence, he may also take a long time, can be unlocked. Der elektrische Speicher liefert so lange den Betriebsstrom für diese elektrische Anordnung. The electrical storage supplies as long as the operating current for the electrical arrangement. Damit ist die Unabhängigkeit vom Bordnetzausfall gegeben. Thus independence is given by the onboard power failure.

Die Zusammenfassung der beschriebenen Bauteile auch mit je einem Sensor in eine geschlossene Baugruppe ist wegen der hohen Funktionssicherheit vorgesehen. The summary of the components described with one sensor in a closed assembly is provided because of the high reliability. Jede mit einer solchen kompakten Baugruppe zur Entriegelung gesicherte Tür funktioniert so unabhängig von möglicher Systemzerstörung an anderer Tür oder zentraler Stelle. Each secured with such a compact package for unlocking the door does so regardless of possible system damage in another door or a central location.

Die für die Erfindung benannten Bauteile sind im Stand der Technik so allgemein bekannt, daß eine detaillierte Darstellung für den einschlägig gebildeten Fachmann nicht erforderlich ist. The designated components for the invention are well known in the art that a detailed illustration for the relevant formed skilled in the art is not required. Da auch bereits eine Vielzahl von sogenannten Crash-Sensoren bekannt ist, deren Prinzipien vom räumlich kleinen Piezokeramik element bis zum einfachen Kugelkontakt reichen, ist der Sensor nicht Gegenstand der Erfindung. Also, since a plurality of so-called crash sensors is already known, the principles element ranging from spatially small piezoceramic to simple ball contact, the sensor is not subject matter of the invention.

Bei der Vielzahl der bekannten Verriegelungssysteme erfaßt die Erfindung lediglich die Bereitstellung der mechanischen Energie zur Entriegelung in der einfachen und störungssicheren Ausführung. Given the many prior art locking systems, the invention covers only the provision of the mechanical energy for unlocking in a simple and fail-safe embodiment.

Da es aus mehreren Gründen günstig sein kann, den Speicherkondensator mit einer höheren als der Bord netzspannung aufzuladen, ist die Anwendung von elektronischer Spannungsverdoppelung sowie die Integration derselben in der Baugruppe vorgesehen. Since it may be beneficial for several reasons, charge the storage capacitor with a higher than the on-board mains voltage, the use of electronic voltage doubler, and the integration thereof provided in the assembly. Dies ist - ganz besonders im Hinblick auf EMV - elektromagnetische Verträglichkeit - als Anspruch bedeutend. This is - especially with regard to EMC - electromagnetic compatibility - as much claim.

Claims (6)

1. Verfahren und Anordnung zur elektrischen Freigabe mechanisch gespeicherter Leistung, enthaltend einen Sensor und ein elektrisches System zur Verarbeitung und Verzögerung, dadurch gekenn zeichnet, daß die Leistung einer mechanisch vor gespannten Feder durch das Schmelzen einer Soll schmelzstelle freigegeben wird und die Entriegelung betätigt. 1. Method and apparatus for electrical release of stored mechanical power, comprising a sensor and an electrical system for processing and delay, characterized characterized marked in that the performance of a mechanical melting point by melting a target in front of the tensioned spring is released and actuates the unlocking.
2. Verfahren und Anordnung nach Anspruch 1 weiterhin dadurch gekennzeichnet, daß ein elektrischer Speicher, ein Kondensator oder eine aufladbare Zelle, über eine Rückflußdiode aus dem Bordnetz aufgeladen wird, daß die gespeicherte elektrische Energie das elektrische System und die Verzögerung speist und das Schmelzen der Sollschmelzstelle bewirkt, und daß diese gespeicherte elektrische Energie auch bei Ausfall des Bordnetzes mit Sicher heit ausreichend dimensioniert ist. 2. The method and arrangement according to claim 1 further characterized in that an electrical memory, a capacitor or a rechargeable cell is charged via a flyback diode from the electrical system, the stored electrical energy supplied the electrical system and the delay and the melting of the desired melting point causes and that this stored electrical energy is of sufficient size in case of failure of the electrical system with safety unit.
3. Verfahren und Anordnung nach vorgehenden Ansprüchen, weiterhin dadurch gekennzeichnet, daß die Leistung der mechanisch vorgespannten Feder vom kurzzeitigen Entladestromstoß des elektrischen Speichers mittels einer elektromagnetisch betätigten Klinke freigegeben wird. 3. The method and arrangement according to the preceding claims, further characterized in that the power of the mechanically prestressed spring is released from the short-term Entladestromstoß of the electrical storage means of a solenoid-operated pawl.
4. Verfahren und Anordnung nach vorgehenden Ansprüchen, weiterhin dadurch gekennzeichnet, daß damit vorzugs weise die Entriegelung von Kraftfahrzeugtüren im Schadensfalle ausgeführt wird. 4. The method and arrangement according to the preceding claims, further characterized in that preferential order, the unlocking of vehicle doors in the event of damage, is performed.
5. Verfahren und Anordnung nach vorgehenden Ansprüchen, weiterhin dadurch gekennzeichnet, daß Spannungs verdoppler vorgesehen sind, die den elektrischen Speicher auf eine höhere Spannung als die Bord netzspannung aufladen und daß die elektrischen und elektronischen Bauteile mit dieser höheren Spannung betrieben werden. 5. The method and arrangement according to the preceding claims, further characterized in that voltage doubler are provided, which charge the electric storage on a higher voltage than the vehicle electrical system voltage, and that the electrical and electronic components are operated at this higher voltage.
6. Verfahren und Anordnung nach vorgehenden Ansprüchen, weiterhin dadurch gekennzeichnet, daß die Soll schmelzstelle durch einen Draht gebildet ist, der einerseits an der gespannten Feder und andererseits an einer isolierten Klemme befestigt ist, und der aus einer Reserverolle nötigenfalles nach einem zufälligen Schmelzen und Entriegeln nachgezogen und verklemmt wird. 6. The method and arrangement according to the preceding claims, further characterized in that the desired melting point is formed by a wire which is fixed on one side to the tensioned spring and on the other hand, to an isolated terminal, and the necessary case from a reserve roll by a random melt and unlocking is caught up and jammed.
DE4326313A 1993-08-05 1993-08-05 Method and arrangement for the electrical release of mechanically stored power for unlocking Withdrawn DE4326313A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE4326313A DE4326313A1 (en) 1993-08-05 1993-08-05 Method and arrangement for the electrical release of mechanically stored power for unlocking

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4326313A DE4326313A1 (en) 1993-08-05 1993-08-05 Method and arrangement for the electrical release of mechanically stored power for unlocking

Publications (1)

Publication Number Publication Date
DE4326313A1 true DE4326313A1 (en) 1995-02-09

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DE4326313A Withdrawn DE4326313A1 (en) 1993-08-05 1993-08-05 Method and arrangement for the electrical release of mechanically stored power for unlocking

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Cited By (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19611578A1 (en) * 1996-03-23 1997-09-25 Bayerische Motoren Werke Ag Electric window raising circuit arrangement with mechanical child-protection system for rear-door windows
DE19708212A1 (en) * 1997-02-28 1998-09-03 Mann & Hummel Filter Method and arrangement for changing an opening
DE19725416C1 (en) * 1997-06-17 1999-01-21 Huf Huelsbeck & Fuerst Gmbh Rotary-latch lock, especially for motor vehicles
DE19745689A1 (en) * 1997-10-16 1999-04-22 Bayerische Motoren Werke Ag Device in vehicles with functional elements in group and bus systems for current consumers
US7617752B2 (en) 2000-09-29 2009-11-17 Sd3, Llc Contact detection system for power equipment
US7640835B2 (en) 2000-08-14 2010-01-05 Sd3, Llc Apparatus and method for detecting dangerous conditions in power equipment
US7640837B2 (en) 2000-08-14 2010-01-05 Sd3, Llc Table saw with improved safety system
US7644645B2 (en) 2002-01-16 2010-01-12 Sd3, Llc Apparatus and method for detecting dangerous conditions in power equipment
US7661343B2 (en) 1999-10-01 2010-02-16 Sd3, Llc Brake mechanism for power equipment
US7681479B2 (en) 2000-08-14 2010-03-23 Sd3, Llc Motion detecting system for use in a safety system for power equipment
US7707920B2 (en) 2003-12-31 2010-05-04 Sd3, Llc Table saws with safety systems
US7712403B2 (en) 2001-07-03 2010-05-11 Sd3, Llc Actuators for use in fast-acting safety systems
US7784507B2 (en) 2000-09-29 2010-08-31 Sd3, Llc Router with improved safety system
US7789002B2 (en) 2000-09-29 2010-09-07 Sd3, Llc Table saw with improved safety system
US7827890B2 (en) 2004-01-29 2010-11-09 Sd3, Llc Table saws with safety systems and systems to mount and index attachments
US7832314B2 (en) 2000-08-14 2010-11-16 Sd3, Llc Brake positioning system
US7836804B2 (en) 2003-08-20 2010-11-23 Sd3, Llc Woodworking machines with overmolded arbors
US7845258B2 (en) 2003-08-20 2010-12-07 Sd3, Llc Brake cartridges for power equipment
US7895927B2 (en) 1999-10-01 2011-03-01 Sd3, Llc Power equipment with detection and reaction systems
US7900541B2 (en) 2001-11-13 2011-03-08 Sd3, Llc Detection system for power equipment
US7921754B2 (en) 2000-08-14 2011-04-12 Sd3, Llc Logic control for fast-acting safety system
US7991503B2 (en) 2003-12-31 2011-08-02 Sd3, Llc Detection systems for power equipment
US8011279B2 (en) 2000-08-14 2011-09-06 Sd3, Llc Power equipment with systems to mitigate or prevent injury
US8061245B2 (en) 2000-09-29 2011-11-22 Sd3, Llc Safety methods for use in power equipment
US8065943B2 (en) 2000-09-18 2011-11-29 Sd3, Llc Translation stop for use in power equipment
US8100039B2 (en) 2000-08-14 2012-01-24 Sd3, Llc Miter saw with safety system
US8413559B2 (en) 2000-08-14 2013-04-09 Sd3, Llc Apparatus and method for detecting dangerous conditions in power equipment
US8459157B2 (en) 2003-12-31 2013-06-11 Sd3, Llc Brake cartridges and mounting systems for brake cartridges
US8640583B2 (en) 2003-05-13 2014-02-04 Robert Bosch Gmbh Safety detection and protection system for power tools
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US9927796B2 (en) 2001-05-17 2018-03-27 Sawstop Holding Llc Band saw with improved safety system

Cited By (59)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19611578A1 (en) * 1996-03-23 1997-09-25 Bayerische Motoren Werke Ag Electric window raising circuit arrangement with mechanical child-protection system for rear-door windows
DE19611578B4 (en) * 1996-03-23 2008-03-06 Bayerische Motoren Werke Ag Circuit arrangement for windows of vehicles
DE19708212A1 (en) * 1997-02-28 1998-09-03 Mann & Hummel Filter Method and arrangement for changing an opening
WO1998038422A1 (en) 1997-02-28 1998-09-03 Filterwerk Mann+Hummel Gmbh Process and device for altering an opening
DE19725416C1 (en) * 1997-06-17 1999-01-21 Huf Huelsbeck & Fuerst Gmbh Rotary-latch lock, especially for motor vehicles
DE19745689A1 (en) * 1997-10-16 1999-04-22 Bayerische Motoren Werke Ag Device in vehicles with functional elements in group and bus systems for current consumers
US7788999B2 (en) 1999-10-01 2010-09-07 Sd3, Llc Brake mechanism for power equipment
US7895927B2 (en) 1999-10-01 2011-03-01 Sd3, Llc Power equipment with detection and reaction systems
US8408106B2 (en) 1999-10-01 2013-04-02 Sd3, Llc Method of operating power equipment with detection and reaction systems
US9969014B2 (en) 1999-10-01 2018-05-15 Sawstop Holding Llc Power equipment with detection and reaction systems
US7661343B2 (en) 1999-10-01 2010-02-16 Sd3, Llc Brake mechanism for power equipment
US8196499B2 (en) 1999-10-01 2012-06-12 Sd3, Llc Power equipment with detection and reaction systems
US9925683B2 (en) 1999-10-01 2018-03-27 Sawstop Holding Llc Table saws
US9724840B2 (en) 1999-10-01 2017-08-08 Sd3, Llc Safety systems for power equipment
US8291797B2 (en) 1999-10-01 2012-10-23 Sd3, Llc Table saw with improved safety system
US9522476B2 (en) 1999-10-01 2016-12-20 Sd3, Llc Power equipment with detection and reaction systems
US9038515B2 (en) 2000-08-14 2015-05-26 Sd3, Llc Logic control for fast-acting safety system
US8100039B2 (en) 2000-08-14 2012-01-24 Sd3, Llc Miter saw with safety system
US7681479B2 (en) 2000-08-14 2010-03-23 Sd3, Llc Motion detecting system for use in a safety system for power equipment
US7832314B2 (en) 2000-08-14 2010-11-16 Sd3, Llc Brake positioning system
US8522655B2 (en) 2000-08-14 2013-09-03 Sd3, Llc Logic control for fast-acting safety system
US8490527B2 (en) 2000-08-14 2013-07-23 Sd3, Llc Power equipment with systems to mitigate or prevent injury
US7640837B2 (en) 2000-08-14 2010-01-05 Sd3, Llc Table saw with improved safety system
US8151675B2 (en) 2000-08-14 2012-04-10 Sd3, Llc Logic control for fast-acting safety system
US8438958B2 (en) 2000-08-14 2013-05-14 Sd3, Llc Detection system for power equipment
US7921754B2 (en) 2000-08-14 2011-04-12 Sd3, Llc Logic control for fast-acting safety system
US8413559B2 (en) 2000-08-14 2013-04-09 Sd3, Llc Apparatus and method for detecting dangerous conditions in power equipment
US8006595B2 (en) 2000-08-14 2011-08-30 Sd3, Llc Apparatus and method for detecting dangerous conditions in power equipment
US8011279B2 (en) 2000-08-14 2011-09-06 Sd3, Llc Power equipment with systems to mitigate or prevent injury
US7640835B2 (en) 2000-08-14 2010-01-05 Sd3, Llc Apparatus and method for detecting dangerous conditions in power equipment
US8079292B2 (en) 2000-08-14 2011-12-20 Sd3, Llc Detection system for power equipment
US8191450B2 (en) 2000-08-14 2012-06-05 Sd3, Llc Power equipment with detection and reaction systems
US8065943B2 (en) 2000-09-18 2011-11-29 Sd3, Llc Translation stop for use in power equipment
US8061245B2 (en) 2000-09-29 2011-11-22 Sd3, Llc Safety methods for use in power equipment
US7789002B2 (en) 2000-09-29 2010-09-07 Sd3, Llc Table saw with improved safety system
US7784507B2 (en) 2000-09-29 2010-08-31 Sd3, Llc Router with improved safety system
US7617752B2 (en) 2000-09-29 2009-11-17 Sd3, Llc Contact detection system for power equipment
US8186255B2 (en) 2000-09-29 2012-05-29 Sd3, Llc Contact detection system for power equipment
US9927796B2 (en) 2001-05-17 2018-03-27 Sawstop Holding Llc Band saw with improved safety system
US7712403B2 (en) 2001-07-03 2010-05-11 Sd3, Llc Actuators for use in fast-acting safety systems
US7900541B2 (en) 2001-11-13 2011-03-08 Sd3, Llc Detection system for power equipment
US7644645B2 (en) 2002-01-16 2010-01-12 Sd3, Llc Apparatus and method for detecting dangerous conditions in power equipment
US9702504B2 (en) 2003-05-13 2017-07-11 Robert Bosch Tool Corporation Safety detection and protection system for power tools
US8640583B2 (en) 2003-05-13 2014-02-04 Robert Bosch Gmbh Safety detection and protection system for power tools
US7836804B2 (en) 2003-08-20 2010-11-23 Sd3, Llc Woodworking machines with overmolded arbors
US7845258B2 (en) 2003-08-20 2010-12-07 Sd3, Llc Brake cartridges for power equipment
US7866239B2 (en) 2003-12-31 2011-01-11 Sd3, Llc Elevation mechanism for table saws
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US8459157B2 (en) 2003-12-31 2013-06-11 Sd3, Llc Brake cartridges and mounting systems for brake cartridges
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US7827893B2 (en) 2003-12-31 2010-11-09 Sd3, Llc Elevation mechanism for table saws
US9623498B2 (en) 2003-12-31 2017-04-18 Sd3, Llc Table saws
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US8122807B2 (en) 2003-12-31 2012-02-28 Sd3, Llc Table saws with safety systems
US8489223B2 (en) 2003-12-31 2013-07-16 Sd3, Llc Detection systems for power equipment
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US8505424B2 (en) 2004-01-29 2013-08-13 Sd3, Llc Table saws with safety systems and systems to mount and index attachments
US10052786B2 (en) 2004-01-29 2018-08-21 Sawstop Holding Llc Table saws with safety systems and systems to mount and index attachments

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8139 Disposal/non-payment of the annual fee