Patent US4330146A successfully refreshed from Google Patents.
US4330146A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable door lock
Assignee: Individual
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Filing: 1980-01-02
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Granted: 1982-05-18
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Expires: 2000-01-02
Abstract
Abstract The purpose of the door lock is to secure a door from both sides temporarily (while building is vacated) with as little damage to door and frame as possible. When the apartment is again occupied, door lock can be used on another residence (apartment). Most rental property has locks on exterior doors that can be operated from the inside without a key. This type of lock is used so that occupants won't have to locate a key in the event of a fire. When the residence is vacated, and the appliances are left, all one needs to do is break a window, enter, open a door, and carry out appliances. The door lock will prevent such burglary by making it virtually impossible to open the door.
Inventors
- 👤 E. Reed Sessions, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 01:17
CPC Classifications
E; E05; E05C; E05C19/00; E05C19/18; E05C19/182; Y; Y10; Y10T; Y10T292/00; Y10T292/20; Y10T292/228; Y10T292/34
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
122 words
A portable door lock comprised of an L-shaped bar which goes under and inside a door on the latch side and has a bracket which slides onto it for movement to the thickness of the door jam, means to receive the padlock to lock said bracket in position on said bar, and an arm pivoted on said bracket having a part extending therefrom so that when the bracket is moved the part on the pivoting arm can be inserted into a small hole in the door jam facing or adjacent wall, and a padlock can be affixed to the bracket and bar so that it is rigidly secured inside and out regardless of which side of the door the hinge is on.
Claim 2
Dependent Claim
122 words
A portable door lock comprised of an L-shaped bar which goes under and inside a door on the latch side and has a bracket which slides onto it for movement to the thickness of the door jam, means to receive the padlock to lock said bracket in position on said bar, and an arm pivoted on said bracket having a part extending therefrom so that when the bracket is moved the part on the pivoting arm can be inserted into a small hole in the door jam facing or adjacent wall, and a padlock can be affixed to the bracket and bar so that it is rigidly secured inside and out regardless of which side of the door the hinge is on.
Claim 3
Dependent Claim
48 words
A portable door lock, according to claim 1, characeterized by the pivoting arm being so shaped and constructed that the device may be used on left or right hand doors and the part on the pivoting arm is a steel pin which holds the device rigidly in place.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-05-17 | 1985-11-16 | 1986-05-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-05-17 | 1989-11-16 | 1990-05-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-05-17 | 1993-11-16 | 1994-05-18 | $7700.00 | Window Closed / Lapsed |