US5452928A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sliding door self-latching apparatus
Assignee: Spectrum Brands Inc
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Filing: 1994-03-17
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Granted: 1995-09-26
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Expires: 2014-03-17
Abstract
Abstract A latch assembly for mounting to a sliding door and latching with a strike plate mounted in a door frame. Provided are a housing for fitting within the sliding door, a self-latching deadbolt for engaging with the strike plate, and a mechanism for sliding the self-latching deadbolt between a nonengaging position and an engaging position for latching with the strike plate.
Inventors
- 👤 Joseph G. Donald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 03:29
CPC Classifications
E; E05; E05B; E05B15/00; E05B15/10; E05B15/102; E05B63/00; E05B63/12; E05B63/127; E05C; E05C1/00; E05C1/08; E05C1/12; E05C1/16; E05C1/163; E05B65/00; E05B65/08; Y; Y10; Y10T; Y10T292/00; Y10T292/08; Y10T292/096; Y10T292/0969; Y10T292/097; Y10T292/0977; Y10T292/098; Y10T292/1036; Y10T292/175; Y10T292/18
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
120 words
A latch assembly for mounting to a sliding door and engaging with a strike plate means, comprising: a) a housing for fitting within the sliding door; b) self-latching extended or retracted deadbolt means associated with said housing for engaging with the strike plate means, wherein a deadbolt within said deadbolt means engages and latches with the strike plate starting from either an extended position before the sliding door is slid to engage with the strike plate or a retracted position before the sliding door is slid to engage with the strike plate; and c) deadbolt extension means associated with said housing for sliding said self-latching deadbolt means between a nonengaging position and an engaging position with the strike plate means.
Claim 2
Dependent Claim
120 words
A latch assembly for mounting to a sliding door and engaging with a strike plate means, comprising: a) a housing for fitting within the sliding door; b) self-latching extended or retracted deadbolt means associated with said housing for engaging with the strike plate means, wherein a deadbolt within said deadbolt means engages and latches with the strike plate starting from either an extended position before the sliding door is slid to engage with the strike plate or a retracted position before the sliding door is slid to engage with the strike plate; and c) deadbolt extension means associated with said housing for sliding said self-latching deadbolt means between a nonengaging position and an engaging position with the strike plate means.
Claim 3
Dependent Claim
111 words
A latch assembly according to claim 1, wherein said self-latching deadbolt means comprises a deadbolt assembly comprising: a) a sliding deadbolt member having first and second ends; b) a lever having first and second ends; c) hooking means associated with said lever first end for engaging the strike plate; d) a channel formed within said lever extending from proximate said lever second end towards said lever first end; e) pivoting means for connecting said lever by said channel to said deadbolt member; and f) biasing means for providing a variable point of pivoting within said channel whereby said pivoting varies from proximate said lever second end toward said lever first end.
Claim 4
Dependent Claim
24 words
A latch assembly according to claim 2, wherein said biasing means comprises a spring fitted within said channel that cooperates with said pivoting means.
Claim 5
Dependent Claim
23 words
A latch assembly according to claim 2, wherein said hooking means comprises a hook formed in said lever proximate said lever first end.
Claim 6
Dependent Claim
141 words
A latch assembly for mounting to a sliding door and engaging with a strike plate means, comprising: a) a housing for fitting within the sliding door; b) a deadbolt assembly comprising: a sliding deadbolt member having first and second ends; a lever having first and second ends; hooking means associated with said lever first end for engaging the strike plate; a channel formed within said lever extending from proximate said lever second end towards said lever first end; pivoting means for connecting said lever by said channel to said deadbolt member; biasing means for providing a variable point of pivoting within said channel whereby said pivoting varies from proximate said lever second end toward said lever first end; and c) deadbolt extension means for sliding said deadbolt assembly between a nonengaging position and an engaging position with the strike plate means.
Claim 7
Dependent Claim
141 words
A latch assembly for mounting to a sliding door and engaging with a strike plate means, comprising: a) a housing for fitting within the sliding door; b) a deadbolt assembly comprising: a sliding deadbolt member having first and second ends; a lever having first and second ends; hooking means associated with said lever first end for engaging the strike plate; a channel formed within said lever extending from proximate said lever second end towards said lever first end; pivoting means for connecting said lever by said channel to said deadbolt member; biasing means for providing a variable point of pivoting within said channel whereby said pivoting varies from proximate said lever second end toward said lever first end; and c) deadbolt extension means for sliding said deadbolt assembly between a nonengaging position and an engaging position with the strike plate means.
Claim 8
Dependent Claim
24 words
A latch assembly according to claim 5, wherein said biasing means comprises a spring fitted within said channel that cooperates with said pivoting means.
Claim 9
Dependent Claim
23 words
A latch assembly according to claim 5, wherein said hooking means comprises a hook formed in said lever proximate said lever first end.
Claim 10
Dependent Claim
176 words
A latch assembly for mounting to a sliding door and engaging with a strike plate means, comprising: a) a housing for fitting within the sliding door; b) a deadbolt assembly comprising: a sliding deadbolt member having first and second ends; a lever having first and second ends; hooking means associated with said lever first end for engaging the strike plate wherein said hooking means comprises a hook formed in said lever proximate said lever first end; a channel formed within said lever extending from proximate said lever second end towards said lever first end; pivoting means for connecting said lever by said channel to said deadbolt member; biasing means for providing a variable point of pivoting within said channel whereby said pivoting varies from proximate said lever second end toward said lever first end wherein said biasing means comprises a spring fitted within said channel that cooperates with said pivoting means; and c) deadbolt extension means for sliding said deadbolt assembly between a nonengaging position and an engaging position for latching with the strike plate means.
Claim 11
Dependent Claim
176 words
A latch assembly for mounting to a sliding door and engaging with a strike plate means, comprising: a) a housing for fitting within the sliding door; b) a deadbolt assembly comprising: a sliding deadbolt member having first and second ends; a lever having first and second ends; hooking means associated with said lever first end for engaging the strike plate wherein said hooking means comprises a hook formed in said lever proximate said lever first end; a channel formed within said lever extending from proximate said lever second end towards said lever first end; pivoting means for connecting said lever by said channel to said deadbolt member; biasing means for providing a variable point of pivoting within said channel whereby said pivoting varies from proximate said lever second end toward said lever first end wherein said biasing means comprises a spring fitted within said channel that cooperates with said pivoting means; and c) deadbolt extension means for sliding said deadbolt assembly between a nonengaging position and an engaging position for latching with the strike plate means.
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) | 1998-09-25 | 1999-03-27 | 1999-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-09-25 | 2003-03-27 | 2003-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-09-25 | 2007-03-27 | 2007-09-26 | $7700.00 | Window Closed / Lapsed |