Patent US4335910A successfully refreshed from Google Patents.
US4335910A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Door restraining device
Assignee: LAIRSON LEROY M 4235 SW HWY 101 LINCOLN CITY OR
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Filing: 1979-02-14
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Granted: 1982-06-22
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Expires: 1999-02-14
Abstract
Abstract A door restraining device comprising a cylindrical bar mounted horizontally across the door. The bar having rotatable sleeves positioned opposite the interface between the door and the door frame. The sleeves positionable to accommodate doors of various widths. The bar is secured by mounting brackets affixed to the door frame on each side of the door. The mounting brackets having an offset inner extremity so as to position the sleeves out of alignment with the door frame and door interface.
Inventors
- 👤 Lewis E. Massie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 10:07
CPC Classifications
E; E05; E05C; E05C19/00; E05C19/003; Y; Y10; Y10T; Y10T292/00; Y10T292/23
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
129 words
A door restraining device to prevent the opening of a door, said device having an elongate rigid bar and a pair of brackets for selectively mounting the bar across the door opening wherein the improvement comprises: (a) a cylindrical bar having two rotatable sleeves mounted thereon each sleeve positioned opposite the interface of the door and the frame; (b) said sleeves being adjustably positioned by Collars mounted on the bar at each end of the sleeves; and, (c) means for securing said sleeves to the bar, said positioning collars further comprising: (d) a first pair of collars having outside diameters greater than the outside diameter of the sleeves; and (e) a second pair of collars having outside diameters equal to or less than the outside dimension of the sleeves.
Claim 2
Dependent Claim
129 words
A door restraining device to prevent the opening of a door, said device having an elongate rigid bar and a pair of brackets for selectively mounting the bar across the door opening wherein the improvement comprises: (a) a cylindrical bar having two rotatable sleeves mounted thereon each sleeve positioned opposite the interface of the door and the frame; (b) said sleeves being adjustably positioned by Collars mounted on the bar at each end of the sleeves; and, (c) means for securing said sleeves to the bar, said positioning collars further comprising: (d) a first pair of collars having outside diameters greater than the outside diameter of the sleeves; and (e) a second pair of collars having outside diameters equal to or less than the outside dimension of the sleeves.
Claim 3
Dependent Claim
177 words
A door restraining device to prevent the opening of a door said device having an elongate rigid bar and a pair of brackets for selectively mounting the bar across the door opening wherein the improvement comprises: (a) a cylindrical bar having two rotatable sleeves mounted thereon each sleeve positioned opposite the interface of the door and the frame; (b) said sleeves being adjustably positioned by collars mounted on the bar at each end of the sleeves; and (c) means for securing said sleeves to the bar, (d) said bar being of metal and having a minimum corner radius circumferential groove near one end; (e) positioning collars made of a reslient material, the inside diameter of said collars being slightly less than the outside diameter of the bar; (f) a first one of an offset metal mounting bracket having a vertical slotted aperture of a width accomodating the circumferential groove in one end of the bar; and (g) a second one of an offset metal mounting bracket having a circular aperture accomodating the other end of the bar.
Claim 4
Dependent Claim
177 words
A door restraining device to prevent the opening of a door said device having an elongate rigid bar and a pair of brackets for selectively mounting the bar across the door opening wherein the improvement comprises: (a) a cylindrical bar having two rotatable sleeves mounted thereon each sleeve positioned opposite the interface of the door and the frame; (b) said sleeves being adjustably positioned by collars mounted on the bar at each end of the sleeves; and (c) means for securing said sleeves to the bar, (d) said bar being of metal and having a minimum corner radius circumferential groove near one end; (e) positioning collars made of a reslient material, the inside diameter of said collars being slightly less than the outside diameter of the bar; (f) a first one of an offset metal mounting bracket having a vertical slotted aperture of a width accomodating the circumferential groove in one end of the bar; and (g) a second one of an offset metal mounting bracket having a circular aperture accomodating the other end of the bar.
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) | 1985-06-21 | 1985-12-21 | 1986-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-06-21 | 1989-12-21 | 1990-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-06-21 | 1993-12-21 | 1994-06-22 | $7700.00 | Window Closed / Lapsed |