US3401969A - Safety chain locking device - Google Patents
Safety chain locking device Download PDFInfo
- Publication number
- US3401969A US3401969A US59031166A US3401969A US 3401969 A US3401969 A US 3401969A US 59031166 A US59031166 A US 59031166A US 3401969 A US3401969 A US 3401969A
- Authority
- US
- United States
- Prior art keywords
- door
- locking device
- jamb
- vertical
- safety chain
- 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.)
- Expired - Lifetime
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
- E05C17/00—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith
- E05C17/02—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means
- E05C17/04—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means with a movable bar or equivalent member extending between frame and wing
- E05C17/36—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means with a movable bar or equivalent member extending between frame and wing comprising a flexible member, e.g. chains
- E05C17/365—Security chains
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T292/00—Closure fasteners
- Y10T292/28—Extension link
- Y10T292/283—Chain
Definitions
- My invention is directed toward a safety chain locking device.
- Another object is to provide a new and improved safety locking device of the character indicated which has a first position at which the door is locked in closed position, a second position at which the door is fully unlocked and can be open or shut at will, and a third position at which the door is chained to the jamb but can be opened to a limited extent or closed.
- Still another object is to provide a new and improved safety locking device of the character indicated that can be manufactured easily and inexpensively and can be quickly and easily installed on or removed from door and jamb.
- FIG. 1 is a front view of my invention in locked position
- FIG. 2 is a similar view showing my invention in chained position
- FIG. 3 is a similar view showing my invention in unlocked position
- FIG. 4 shows a detail perspective view of one part used in my invention.
- a door is hinged to one side (not shown) of a jamb whereby the door is swing- :ably disposed adjacent the opposite side 12 of the jamb.
- a first member 14 in the form of a rectangular bracket having in cross section the shape of a C with upper and lower horizontal flanges 12 is secured to the door spaced apart from the jamb by screws 16 extending through holes in the flanges whereby member 14 has oppositely disposed vertical openings 18 connected by a hollow horizontal recess 19.
- a second member 20 has one vertical plate 22 screwed to a vertical edge of the side 12 of the jamb by screws 24 extending through holes in the plate.
- Plate 22 is connected via vertical shoulder 26 spaced apart from the jamb to a second vertical plate '28 parallel thereto and extending perpendicularly away from the side 12.
- Plate 28 has a hole 30 therein engaged by one end of chain 32.
- Shoulder 26 defines a vertical hollow recess 29 having opposite horizontal openings.
- Member 38 has three spaced apart vertical fingers 40, 42 and 44 which are coplanar and extend vertically downward from plate 36. Fingers 40 and 44 are end fingers; finger 42 is an intermediate finger.
- member 38 contacts only the door 10 and member 14 with fingers 40, 42 and 44 extending through the vertical opening 18 remote from side 12 into the horizontal recess 19 whereby the door can be closed or can be swung open to a limited access position determined by the length of the chain.
- member 38 contacts only the jamb and member 20 with finger 40 slidably engaging recess 29 whereby the door can be opened or closed at will.
- Safety chain locking device for a door hinged to one side of a jamb and swingably disposed adjacent another side of the jamb and comprising:
- a device as set forth in claim 2 wherein said door can be unlocked and freely openable by placing the third member in contact solely with the other side of the jamb with the other end finger slidably engaging the vertical recess.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Wing Frames And Configurations (AREA)
Description
Sept. 17, 1968 F. J. NEEL 3,401,969
SAFETY CHAIN LOCKING DEVICE Filed Oct. 28, 1966 IATVENTOR.
FORESTJ. NEEL United States Patent 3,401,969 SAFETY CHAIN LOCKING DEVICE Forest J. Neel, Silver City, N. Mex. (422 Main St., P.0. Box 5040, Pine Bluff, Ark. 71601) Filed Oct. 28, 1966, Ser. No. 590,311 4 Claims. (Cl. 292264) ABSTRACT OF THE DISCLOSURE A safety chain locking device adapted to be secured to a door and its associated jamb having a plurality of adjustments controlling access thereto.
My invention is directed toward a safety chain locking device.
It is an object of my invention to provide a new and improved safety chain locking device adapted to be secured to a door and its associated jamb.
Another object is to provide a new and improved safety locking device of the character indicated which has a first position at which the door is locked in closed position, a second position at which the door is fully unlocked and can be open or shut at will, and a third position at which the door is chained to the jamb but can be opened to a limited extent or closed.
Still another object is to provide a new and improved safety locking device of the character indicated that can be manufactured easily and inexpensively and can be quickly and easily installed on or removed from door and jamb.
All of the foregoing and still further objects and advantages of my invention will now be explained with reference both to this specification and to the accompanying drawings wherein:
FIG. 1 is a front view of my invention in locked position;
FIG. 2 is a similar view showing my invention in chained position;
FIG. 3 is a similar view showing my invention in unlocked position; and
FIG. 4 shows a detail perspective view of one part used in my invention.
Referring now to FIGS. 1-4, a door is hinged to one side (not shown) of a jamb whereby the door is swing- :ably disposed adjacent the opposite side 12 of the jamb.
A first member 14 in the form of a rectangular bracket having in cross section the shape of a C with upper and lower horizontal flanges 12 is secured to the door spaced apart from the jamb by screws 16 extending through holes in the flanges whereby member 14 has oppositely disposed vertical openings 18 connected by a hollow horizontal recess 19.
A second member 20 has one vertical plate 22 screwed to a vertical edge of the side 12 of the jamb by screws 24 extending through holes in the plate. Plate 22 is connected via vertical shoulder 26 spaced apart from the jamb to a second vertical plate '28 parallel thereto and extending perpendicularly away from the side 12.. Plate 28 has a hole 30 therein engaged by one end of chain 32. Shoulder 26 defines a vertical hollow recess 29 having opposite horizontal openings.
The other end of chain 32 engages a hole 34 in a horizontal plate 36 of a third member 38. Member 38 has three spaced apart vertical fingers 40, 42 and 44 which are coplanar and extend vertically downward from plate 36. Fingers 40 and 44 are end fingers; finger 42 is an intermediate finger.
As shown in FIG. 1, in locking position, the door is closed and member 38 contacts both door 10 and side 12 with finger 44 slidably engaging recess 29 of member 20'.
As shown in FIG. 2, in chained position, member 38 contacts only the door 10 and member 14 with fingers 40, 42 and 44 extending through the vertical opening 18 remote from side 12 into the horizontal recess 19 whereby the door can be closed or can be swung open to a limited access position determined by the length of the chain.
As shown in FIG. 3, in unlocked position, member 38 contacts only the jamb and member 20 with finger 40 slidably engaging recess 29 whereby the door can be opened or closed at will.
While I have described my invention with particular reference to the drawings, my protection is to be limited only by the terms of the claims which follow.
Having thus described my invention, I claim as new and desire to secure by Letters Patent:
1. Safety chain locking device for a door hinged to one side of a jamb and swingably disposed adjacent another side of the jamb and comprising:
(a) a first member securable to the door and having opposite vertical openings joined by a hollow horizontal recess;
(b) a second member securable to the other side of the jamb and having opposite horizontal openings joined by a vertical hollow recess;
(c) a chain secured at one end to said second member; and
(d) a third member secured to the other end of said chain, said third member having two oppositely disposed vertical end fingers and an intermediate vertical finger disposed between and spaced apart from the end fingers, all of said fingers being coplanar.
2. A device as set forth in claim 1 wherein when said door is closed, the door can be locked by placing the third member partially in contact with the door and partially in contact with the other side of the jamb with a selected end finger slidably engaging the vertical recess.
3. A device as set forth in claim 2 wherein said door can be unlocked and freely openable by placing the third member in contact solely with the other side of the jamb with the other end finger slidably engaging the vertical recess.
4. A device as set forth in claim 3 wherein said door can be locked and yet operable on a chain by placing said third member in contact solely with the door and first member with all fingers slidably engaging the horizontal recess.
References Cited UNITED STATES PATENTS 3,087,751 4/ 1963 Nisenbaum 292264 FOREIGN PATENTS 20,879 1/ 1916 Denmark.
MARVIN A. CHAMPION, Primary Examiner.
E. J. MCCARTHY, Assistant Examiner.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US59031166 US3401969A (en) | 1966-10-28 | 1966-10-28 | Safety chain locking device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US59031166 US3401969A (en) | 1966-10-28 | 1966-10-28 | Safety chain locking device |
Publications (1)
Publication Number | Publication Date |
---|---|
US3401969A true US3401969A (en) | 1968-09-17 |
Family
ID=24361747
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US59031166 Expired - Lifetime US3401969A (en) | 1966-10-28 | 1966-10-28 | Safety chain locking device |
Country Status (1)
Country | Link |
---|---|
US (1) | US3401969A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3761118A (en) * | 1971-09-01 | 1973-09-25 | K Westcott | Door bolt |
US4204708A (en) * | 1978-11-17 | 1980-05-27 | Carlson Harold W | Door latch assembly |
US5551739A (en) * | 1995-04-05 | 1996-09-03 | Solis; Avis A. | Chain lock for trailer doors or mobile home doors |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3087751A (en) * | 1961-01-23 | 1963-04-30 | Daniel B Nisenbaum | Safety chaing locking means for a door |
DK20879A (en) * | 1978-01-30 | 1979-07-31 | Astra Pharma Prod | DIALKYLAMINAL CANCER RESIDUES FOR THE PRODUCTION OF THERAPEUTICALLY EFFECTIVE COMPOUNDS |
-
1966
- 1966-10-28 US US59031166 patent/US3401969A/en not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3087751A (en) * | 1961-01-23 | 1963-04-30 | Daniel B Nisenbaum | Safety chaing locking means for a door |
DK20879A (en) * | 1978-01-30 | 1979-07-31 | Astra Pharma Prod | DIALKYLAMINAL CANCER RESIDUES FOR THE PRODUCTION OF THERAPEUTICALLY EFFECTIVE COMPOUNDS |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3761118A (en) * | 1971-09-01 | 1973-09-25 | K Westcott | Door bolt |
US4204708A (en) * | 1978-11-17 | 1980-05-27 | Carlson Harold W | Door latch assembly |
US5551739A (en) * | 1995-04-05 | 1996-09-03 | Solis; Avis A. | Chain lock for trailer doors or mobile home doors |
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