US3791180A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combined latch bolt and dead bolt mechanism including single action double bolt release
Assignee: Newfrey LLC
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Filing: 1972-04-24
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Granted: 1974-02-12
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Expires: 1992-04-24
Abstract
Abstract First and second latch assemblies are interconnected such that operation of inside and outside operators of the second latch assembly will extend or retract a deadbolt of the second latch assembly without affecting the first latch assembly, operation of an outside operator of the first latch assembly will retract a spring extended latch of the first latch assembly without affecting the second latch assembly, and operation of an inside operator of the first latch assembly will retract both the latch of the first latch assembly and the deadbolt of the second latch assembly generally simultaneously. The inter-connection between the latch assemblies preferably includes a rotatable gear and pivotal rack.
Inventors
- 👤 W Doyle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 12:29
CPC Classifications
E; E05; E05B; E05B65/00; E05B65/10; E05B65/1086; E05B59/00; Y; Y10; Y10S; Y10S70/00; Y10S70/63; Y10T; Y10T292/00; Y10T292/08; Y10T292/0801; Y10T292/0834; Y10T292/0836; Y10T292/0837; Y10T292/0843; Y10T70/00; Y10T70/50; Y10T70/5093; Y10T70/5155; Y10T70/5199; Y10T70/5226
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
162 words
In a latch construction of the type having first and second latch assemblies, said first latch assembly including a first latch mechanism actionable for withdrawing a first latch, a first inside operator operable for actuating said first latch mechanism, and a first outside operator operable for actuating said first latch mechanism, said second latch assembly including a second latch mechanism actionable for withdrawing a second latch, and a second inside operator operable for actuating said second latch mechanism; the improvements comprising: gear and rack means including a gear and a rack inter-connecting certain of said first latch mechanism and first inside operator and certain of said second latch mechanism and second inside operator for generally simultaneously actuating said first and second latch mechanisms upon operation of said first inside operator while being free of actuating said second latch mechanism during operation of said first outside operator and being free of actuating said first latch mechanism during operation of said second inside operator.
Claim 2
Dependent Claim
162 words
In a latch construction of the type having first and second latch assemblies, said first latch assembly including a first latch mechanism actionable for withdrawing a first latch, a first inside operator operable for actuating said first latch mechanism, and a first outside operator operable for actuating said first latch mechanism, said second latch assembly including a second latch mechanism actionable for withdrawing a second latch, and a second inside operator operable for actuating said second latch mechanism; the improvements comprising: gear and rack means including a gear and a rack inter-connecting certain of said first latch mechanism and first inside operator and certain of said second latch mechanism and second inside operator for generally simultaneously actuating said first and second latch mechanisms upon operation of said first inside operator while being free of actuating said second latch mechanism during operation of said first outside operator and being free of actuating said first latch mechanism during operation of said second inside operator.
Claim 3
Dependent Claim
49 words
A latch construction as defined in claim 1 in which said second latch assembly includes a second outside operator operable for actuating said second latch mechanism; and in which said gear and rack means is free of actuating said first latch mechanism during operation of said second outside operator.
Claim 4
Dependent Claim
73 words
A latch construction as defined in claim 1 in which said first outside operator is a keyed operator including a lock; in which said second latch assembly includes a second outside operator operable for actuating said second latch mechanism, said second outside operator being a keyed operator including a lock; and in which said gear and rack means is free of actuating said first latch mechanism during operation of said second outside operator.
Claim 5
Dependent Claim
109 words
A latch construction as defined in claim 1 in which said first inside operator is operable by rotation in either of opposite rotatable directions from a neutral position for actuating said first latch mechanism to withdraw said first latch; and in which said gear and rack means includes said gear and said rack inner-connecting said certain of said first latch mechanism and said first inside operator and said certain of said second latch mechanism and said second inside operator for generally simultaneously actuating said first and second latch mechanisms upon operation of said first inside operator by rotation of said first inside operator in either of said rotational directions.
Claim 6
Dependent Claim
162 words
A latch construction as defined in claim 1 in which said second latch assembly includes a second outside operator operable for actuating said second latch mechanism; in which said gear and rack means is free of actuating said first latch mechanism during operation of said second outside operator; in which said first and second outside operators are keyed operators including locks; in which said first inside operator is operable by rotation in either of opposite rotatable directions from a neutral position for actuating said first latch mechanism to withdraw said first latch; and in which said gear and rack means includes said gear and said rack inner-connecting said certain of said first latch mechanism and said first inside operator and said certain of said second latch mechanism and said second inside operator for generally simultaneously actuating said first and second latch mechanisms upon operation of said first inside operator by rotation of said first inside operator in either of said rotational directions.
Claim 7
Dependent Claim
184 words
A latch conStruction as defined in claim 1 in which said second latch assembly includes a second outside operator operable for actuating said second latch mechanism; in which said gear and rack means is free of actuating said first latch mechanism during operation of said second outside operator; in which said first and second outside operators are keyed operators including locks; in which said second latch is a dead bolt requiring actuation of said second latch mechanism for both extension and retraction thereof; in which said first inside operator is operable by rotation in either of opposite rotatable directions from a neutral position for actuating said first latch mechanism to withdraw said first latch; and in which said gear and rack means includes said gear and said rack inner-connecting said certain of said first latch mechanism and said first inside operator and said certain of said second latch mechanism and said second inside operator for generally simultaneously actuating said first and second latch mechanisms upon operation of said first inside operator by rotation of said first inside operator in either of said rotational directions.
Claim 8
Dependent Claim
47 words
A latch construction as defined in claim 1 in which said gear and rack means includes said gear at said second latch mechanism and second inside operator, and said rack being a pivotal rack extending between said gear and said first latch mechanism and first inside operator.
Claim 9
Dependent Claim
111 words
A latch construction as defined in claim 1 in which said gear and rack means includes said gear at said second latch mechanism and second inside operator, and said rack being a pivotal rack extending between said gear and said first latch mechanism and first inside operator, said rack being operably connected to said gear rotating said gear upon movement of said rack; and in which cam means is operable associated with said first latch mechanism and said first inside operator normally positioning said rack stationary, said cam means being movable to move said rack and rotate said gear during actuation of said fist latch mechanism by said first inside operator.
Claim 10
Dependent Claim
125 words
A latch construction as defined in claim 1 in which said gear and rack means includes said gear at said second latch mechanism and second inside operator, and said rack being a pivotal rack extending between said gear and said first latch mechanism and first inside operator, said rack being operably connected to said gear rotating said gear upon movement of said rack; in which a cam is operably associated with said first latch mechanism and first inside operator operably engaged with said rack positioning said rack stationary, said cam rotating and pivoting said rack during actuation of said first latch mechanism by said first inside operator; and in which resilient means is operably connected to said rack constantly urging said rack against said cam.
Claim 11
Dependent Claim
107 words
A latch construction as defined in claim 1 in which said gear and rack means includes said gear at said second latch mechanism and second inside operator, and said rack being a pivotal rack extending between said gear and said first latch mechanism and first inside operator; and in which drive transmitting means is operably connected between said gear of said gear and rack means and said second latch mechanism for transmitting drive from said gear to said second latch mechanism for actuating said second latch mechanism and being free of transmitting drive from either of said second latch mechanism and second inside operator to said gear.
Claim 12
Dependent Claim
170 words
A latch construction as defined in claim 1 in which said gear and rack means includes said gear at said second latch mechanism and second inside operator, and said rack being a pivotal rack extending between said gear and said first latch mechanism and first inside operator, said rack being operably connected to said gear rotating said gear upon movement of said rack; in which cam means is operably associated with said first latch mechanism and said first inside operator normally positioning said rack staTionary, said cam means being movable to move said rack and rotate said gear during actuation of said first latch mechanism by said first inside operator; and in which drive transmitting means is operably connected between said gear of said gear and rack means and said second latch mechanism for transmitting drive from said gear to said second latch mechanism for actuating said second latch mechanism and being free of transmitting drive from either of said second latch mechanism and second inside operator to said gear.
Claim 13
Dependent Claim
185 words
A latch construction as defined in claim 1 in which said gear and rack means includes said gear at said second latch mechanism and second inside operator, and said rack being a pivotal rack extending between said gear and said first latch mechanism and said first inside operator, said rack being operably connected to said gear rotating said gear upon movement of said rack; in which a cam is operably associated with said first latch mechanism and first inside operator operably engaged with said rack positioning said rack stationary, said cam rotating and pivoting said rack during actuation of said first latch mechanism by said first inside operator; in which resilient means is operably connected to said rack constantly urging said rack against said cam; and in which drive transmitting means is operably connected between said gear of said gear and rack means and said second latch mechanism for transmitting drive from said gear to said second latch mechanism for actuating said second latch mechanism and being free of transmitting drive from either of said second latch mechanism and second inside operator to said gear.
Claim 14
Dependent Claim
109 words
A latch construction as defined in claim 1 in which said first outside operator is a keyed operator including a lock; in which said second latch assembly includes a second outside operator for actuating said second latch mechanism, said secnd outside operator being a keyed operator including a lock; and in which said gear and rack means is free of actuating said first latch mechanism during operation of said second outside operator, said gear and rack means including said gear at said second latch mechanism and second inside operator and said rack being a pivotal rack extending between said gear and said first latch mechanism and first inside operator.
Claim 15
Dependent Claim
188 words
A latch construction as defined in claim 1 in which said first outside operator is a keyed operator including a lock; in which said said second latch assembly includes a second outside operator operable for actuating said second latch mechanism, said second outside operator being a keyed operator including a lock; in which said gear and rack means is free of actuating said first latch mechanism during operation of said second outside operator, said gear and rack means including said gear at said second latch mechanism and second inside operator, and said rack being a pivotal rack extending between said gear and said first latch mechanism and first inside operator, said rack being operably connected to said gear rotating said gear upon movement of said rack; in which a cam is operably associated with said first latch mechanism and first inside operator operably engaged with said rack positioning said rack stationary, said cam rotating and pivoting said rack during actuation of said first latch mechanism by said first inside operator; and in which resilient means is operably connected to said rack constantly urging said rack against said cam.
Claim 16
Dependent Claim
168 words
A latch construction as defined in claim 1 in which said first outside operator is a keyed operator including a lock; in which said second latch assembly includes a second outside operator for actuating said second latch mechanism, said second outside operator being a keyed operator including a lock; in which said gear and rack means is free of actuating said first latch mechanism during operation of said second outside operator, said gear and rack means including said gear at said second latch mechanism and second inside operator, and sAid rack being a pivotal rack extending between said gear and said first latch mechanism and first inside operator; and in which drive transmitting means is operably connected between said gear of said gear and rack means and said second latch mechanism for transmitting drive from said gear to said second latch mechanism for actuating said second latch mechanism and being free of transmitting drive from either of said second latch mechanism and second inside opearator to said gear.
Claim 17
Dependent Claim
246 words
A latch construction as defined in claim 1 in which said first outside operator is a keyed operator including a lock; in which said second latch assembly includes a second outside operator operable for actuating said second latch mechanism, said second outside operator being a keyed operator including a lock; in which said gear and rack means is free of actuating said first latch mechanism during operation of said second outside operator, said gear and rack means including said gear at said second latch mechanism and second inside operator, and said rack being a pivotal rack extending between said gear and said first latch mechanism and first inside operator, said rack being operably connected to said gear rotating said gear upon movement of said rack; in which a cam is operably associated with said first latch mechanism and first inside operator operably engaged with said rack positioning said rack stationary, said cam rotating and pivoting said rack during actuation of said first latch mechanism by said first inside operator; in which resilient means is operably connected to said rack constantly urging said rack against said cam; and in which drive transmitting means is operably connected between said gear of said gear and rack means and said second latch mechanism for transmitting drive from said gear to said second latch mechanism for acutating said second latch mechanism and being free of transmitting drive from either of said second latch mechanism and second inside operator to said gear.
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) | 1977-02-11 | 1977-08-13 | 1978-02-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-11 | 1981-08-13 | 1982-02-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-11 | 1985-08-13 | 1986-02-12 | $7700.00 | Window Closed / Lapsed |