Patent US3940957A successfully refreshed from Google Patents.
US3940957A
Expired / Lapsed
US
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Bar lock assembly modifications
Assignee: SECURITY DEVICES Inc A CORP OF CONNECTICUT
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Filing: 1974-08-06
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Granted: 1976-03-02
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Expires: 1994-08-06
Abstract
Abstract A bar lock assembly secured to opposing door members for constraining the door members each to the other. The bar lock assemblies include a pair of strike plates utilizing the tooth in groove mating concept which have lug members interfacing with each other. A locking mechanism is inserted through bores formed in each of the lug members to secure the strike plates to each other. In one bar lock assembly modification each strike plate includes a tooth member insertable into one of a set of rectangular channels formed in a portion of the periphery of an opposing strike plate lug member. The channels are formed within three surfaces of each lug member to permit the strike plates to be mated in a substantially co-planar manner or perpendicular to each other.
Inventors
- 👤 Russell W. Walters
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 08:58
CPC Classifications
E; E05; E05B; E05B63/00; E05B63/12; F; F16; F16B; F16B41/00; F16B41/005; Y; Y10; Y10T; Y10T70/00; Y10T70/50; Y10T70/5093; Y10T70/5155; Y10T70/5199; Y10T70/5204; Y10T70/5212
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
185 words
A locking bar assembly comprising: a. a pair of strike plates, each of said strike plates having a respective lug member formed thereon; b. bar lock means insertable through bores formed within each of said lug members when said bores are aligned in a predetermined direction; c. each of said lug members having an upper and lower surface passing in a plane substantially normal to an axis direction of said bores, and an outer side surface having at least one larger dimension section and at least one smaller dimension section; d. at least one first mating means formed by at least one of said strike plates; and, e. at least one second mating means formed on and shorter than said outer side surface, said first mating means of one of said strike plates and said second mating means of said lug member of the other of said strike plates being received one in the other when said bores are aligned in said predetermined direction, said first and second mating means being formed to define at least one angular substantially fixed position between said strike plates.
Claim 2
Dependent Claim
185 words
A locking bar assembly comprising: a. a pair of strike plates, each of said strike plates having a respective lug member formed thereon; b. bar lock means insertable through bores formed within each of said lug members when said bores are aligned in a predetermined direction; c. each of said lug members having an upper and lower surface passing in a plane substantially normal to an axis direction of said bores, and an outer side surface having at least one larger dimension section and at least one smaller dimension section; d. at least one first mating means formed by at least one of said strike plates; and, e. at least one second mating means formed on and shorter than said outer side surface, said first mating means of one of said strike plates and said second mating means of said lug member of the other of said strike plates being received one in the other when said bores are aligned in said predetermined direction, said first and second mating means being formed to define at least one angular substantially fixed position between said strike plates.
Claim 3
Dependent Claim
41 words
The locking bar assembly as recited in claim 1 where said first and second mating means are received each within the other in said angularly fixed position when said strike plates are aligned each to the other in linear planar relation.
Claim 4
Dependent Claim
46 words
The locking bar assembly as recited in claim 1 where said first and second mating means form a tooth and accommodating channel received one within the other in said angularly fixed position when said strike plates are aligned each to the other in substantially perpendicular directions.
Claim 5
Dependent Claim
34 words
The locking bar assembly as recited in claim 1 where said larger dimension section and said smaller dimension section form a channel section extending throughout a portion of the periphery of a lug member.
Claim 6
Dependent Claim
35 words
The locking bar assembly as recited in claim 4 where said first mating means includes a tooth member having a substantially linear extended length for being received in said channel section of said lug member.
Claim 7
Dependent Claim
27 words
The locking bar assembly as recited in claim 5 where said channel section includes a base surface of substantially linear extension for interfacing with said tooth member.
Claim 8
Dependent Claim
40 words
The locking bar assembly in claim 5 in which said channel section is rectangularly contoured to form a substantially continuous contacting surface interface with respect to said tooth member thereby to reduce the possibility of insertion of a prying tool.
Claim 9
Dependent Claim
35 words
The locking bar assembly as recited in claim 7 in which said channel section is formed in at least three portions for receiving said tooth member in at least three of said angularly fixed positions.
Claim 10
Dependent Claim
33 words
The locking bar assembly as recited in claim 4 where said channel section is continuously formed within at least two sidewalls of said lug members, said sidewalls being substantially normal to each other.
Claim 11
Dependent Claim
65 words
The locking bar assembly as recited in claim 1 where said strike plates include planar rear surfaces, said first and second mating means being received each within the other for mounting said strike plates to moveable elements to be secured each to the other in a manner where said rear surfaces of said strike plates are continuously in contact with each of said moveable members.
Claim 12
Dependent Claim
168 words
A locking bar assembly comprising: a. a pair of strike plates, each of said strike plates having a respective lug member; b. bar lock means insertable through bores formed within each of said lug members when said bores are aligned in a predetermined direction; c. each of said lug members having an upper and lower surface and an outer side surface, said upper and lower surfaces formed transverse of said bore within said lug member, said outer side surface having at least one larger diameter section and at least one smaller diameter section; d. at least one first mating means forming a channel section in at least one of said strike plates; and, e. at least one second mating means formed on and shorter than said outer side surface of at least one of said lug members, said channel section of said first mating means receiving said larger diameter section of said second mating means of said lug member when said bores are aligned in said predetermined direction.
Claim 13
Dependent Claim
168 words
A locking bar assembly comprising: a. a pair of strike plates, each of said strike plates having a respective lug member; b. bar lock means insertable through bores formed within each of said lug members when said bores are aligned in a predetermined direction; c. each of said lug members having an upper and lower surface and an outer side surface, said upper and lower surfaces formed transverse of said bore within said lug member, said outer side surface having at least one larger diameter section and at least one smaller diameter section; d. at least one first mating means forming a channel section in at least one of said strike plates; and, e. at least one second mating means formed on and shorter than said outer side surface of at least one of said lug members, said channel section of said first mating means receiving said larger diameter section of said second mating means of said lug member when said bores are aligned in said predetermined direction.
Claim 14
Dependent Claim
39 words
The locking bar assembly as recited in claim 11 where said second mating means includes a tooth member insertable within a corresponding one of said first mating means for restraining motion of said strike plates in said predetermined direction.
Claim 15
Dependent Claim
46 words
The locking bar assembly as recited in claim 12 where said first mating means includes means for permitting rotation of one of said strike plates with respect to the other of said strike plates when said second mating means is inserted in said first mating means.
Claim 16
Dependent Claim
31 words
The locking bar assembly as recited in claim 12 where said tooth member is of substantially constant diameter throughout a predetermined portion of the periphery of each of said lug members.
Claim 17
Dependent Claim
27 words
The locking bar assembly as recited in claim 14 where each of said tooth elements and said channels include inclined sidewalls for increasing load bearing contact areas.
References Cited (Backward Citations)
US3464241A
Cited
US3827266A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-03-02 | 1979-09-01 | 1980-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-03-02 | 1983-09-01 | 1984-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-03-02 | 1987-09-01 | 1988-03-02 | $7700.00 | Window Closed / Lapsed |