US4372419A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vehicular anti-theft locking system
Assignee: Individual
•
Filing: 1980-02-19
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Granted: 1983-02-08
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Expires: 2000-02-19
Abstract
Abstract Our invention describes a device adapted to provide a vehicle with two or more doors, with an Anti-theft Locking System that will prevent the unauthorized opening of one or more of the doors even if the original equipment locks are open, or forcibly opened. An electro-magnet with dual polarities, mounted inside the door panel, facing toward the post, having an actuator shaft, that, when activated by the flow of current, will engage a receptacle within the post, thereby locking the door permanently until deactivated. A key switch, mounted on the outside of the vehicle body, preferably in an unobvious place, two contact points, and a neutral point for key disengagement, using the vehicle battery as a source of power, will provide current to move the shaft of the electro-magnet into or out of the receptacle; thereby activating or deactivating the system.
Inventors
- 👤 Lawrence Barnett
- 👤 Julio Cordoba
- 👤 Benjamin Nuzzo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:34
CPC Classifications
E; E05; E05B; E05B47/00; E05B47/02; E05B47/026; E05B81/00; E05B81/54; E05B81/80; E05B81/82; E05B47/0001; E05B47/0002; E05B47/0003; E05B47/0004; E05B81/02; E05B81/04; E05B81/08; E05B85/00; E05B85/20; E05B85/22; Y; Y10; Y10T; Y10T292/00; Y10T292/08; Y10T292/096; Y10T292/1014; Y10T292/1021; Y10T70/00; Y10T70/70; Y10T70/7051; Y10T70/7062; Y10T70/7136
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
251 words
A notched locking bolt within a casing cylinder mounted in a vehicle door and a manual disengaging apparatus, said locking bolt passing through a dual polarity electromagnetic coil, through a front casing cap and insulated bushing, through a hole in said vehicle door side wall, and into a receptacle that covers a hole in a door post of said vehicle; said casing cylinder having removable front and rear casing caps; said insulated bushing, which is attached to the outside of said casing cylinder and said front casing cap, prevents the free movement of said locking bolt; said manual disengaging apparatus, accessible from the passenger compartment of said vehicle by means of a gear shaft that is axially attached to a one tooth gear inside said casing cylinder; said one tooth gear engages with the notches in said locking bolt; said gear shaft is held in place by and protrudes through a retainer, and a bushing that is securely attached to the outside of said casing cylinder, and through a door panel grommet before engagement with a key; said key, when turned, will cause said gear shaft to turn said one tooth gear into said notched locking bolt, causing disengagement of said locking bolt from said receptacle; turning said one tooth gear in opposite direction will cause engagement of said locking bolt into said receptacle; said retainer is free to rotate inside said bushing; locking washers prevent said retainer, said gear shaft, and said bushing from moving laterally within said casing cylinder.
Claim 2
Dependent Claim
251 words
A notched locking bolt within a casing cylinder mounted in a vehicle door and a manual disengaging apparatus, said locking bolt passing through a dual polarity electromagnetic coil, through a front casing cap and insulated bushing, through a hole in said vehicle door side wall, and into a receptacle that covers a hole in a door post of said vehicle; said casing cylinder having removable front and rear casing caps; said insulated bushing, which is attached to the outside of said casing cylinder and said front casing cap, prevents the free movement of said locking bolt; said manual disengaging apparatus, accessible from the passenger compartment of said vehicle by means of a gear shaft that is axially attached to a one tooth gear inside said casing cylinder; said one tooth gear engages with the notches in said locking bolt; said gear shaft is held in place by and protrudes through a retainer, and a bushing that is securely attached to the outside of said casing cylinder, and through a door panel grommet before engagement with a key; said key, when turned, will cause said gear shaft to turn said one tooth gear into said notched locking bolt, causing disengagement of said locking bolt from said receptacle; turning said one tooth gear in opposite direction will cause engagement of said locking bolt into said receptacle; said retainer is free to rotate inside said bushing; locking washers prevent said retainer, said gear shaft, and said bushing from moving laterally within said casing cylinder.
Claim 3
Dependent Claim
171 words
The combination of claim 1, connected to a three way switch with a neutral point, and two (2) contact points; turning a key to one of said contact points within said three way switch will complete the circuit to one part of said dual polarity electromagnetic coil, causing said locking bolt to engage in said receptacle; turning to said neutral point of said three way switch will stop the flow of current, and said locking bolt will be held firmly in place by said insulated bushing, while said locking bolt is engaging said receptacle; turning said key to the other of said contact points within said three way switch will complete the circuit to the other part of said dual polarity electromagnetic coil, causing said locking bolt to disengage with said receptacle; turning to said neutral point of said three way switch will stop the flow of current, and said locking bolt will be held firmly in place by said insulated bushing, while said locking bolt is disengaged from said receptacle.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-02-07 | 1986-08-09 | 1987-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-02-07 | 1990-08-09 | 1991-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-02-07 | 1994-08-09 | 1995-02-08 | $7700.00 | Window Closed / Lapsed |