US3698215A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Door lock
Assignee: Individual
•
Filing: 1971-04-07
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Granted: 1972-10-17
•
Expires: 1991-04-07
Abstract
Abstract A door lock having a recessed door handle at the outer side thereof, the thickness of the lock being maintained at a minimum so that it can be used on relatively thin doors (for example, the exterior door of a mobile home) by forming numerous components of the lock, including the bolt, as relatively thin flat metal stampings. The bolt is adapted to be retracted by actuating an exterior handle mounted within a recessed outside escutcheon plate or by an inside handle mounted on an inner escutcheon plate. The door lock includes a lock cylinder key operated from the exterior and, if desired, by a push button from the inside for enabling or preventing retraction of the lock bolt.
Inventors
- 👤 John A Truhon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 20:59
CPC Classifications
E; E05; E05C; E05C1/00; E05C1/08; E05C1/12; Y; Y10; Y10S; Y10S292/00; Y10S292/31; Y10T; Y10T292/00; Y10T292/08; Y10T292/096; Y10T292/0969; Y10T292/097; Y10T292/0977; Y10T292/0982; Y10T292/0986; Y10T292/0994; Y10T70/00; Y10T70/50; Y10T70/5093; Y10T70/5155; Y10T70/5199; Y10T70/5372; Y10T70/5385; Y10T70/5389; Y10T70/55; Y10T70/5513
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
239 words
A door lock comprising inner and outer door lock plates adapted to be mounted in registering relation against the inner and outer faces of a door in a position overlying an opening through the door, said outside plate having a generally central recess therein adapted to project into said opening in the door and a peripheral flange surrounding said recess and adapted to overlie the outer face of the door around the opening therein, an outer door operating handle mounted in said recess and normally disposed substantially wholly within said recess, said recess having a generally flat bottom wall, a lock bolt slideably supported on the inner face of said bottom wall for reciprocation in a rectilinear path, said bolt having a generally flat thin body portion provided with a projection extending laterally from one side thereof in a direction parallel to the path of reciprocation of the bolt, said projection extending laterally beyond said recess and having a relatively thick bolt nose on the end thereof which is adapted to engage with a door frame mounted strike to retain the door in a closed position, said exterior handle being operatively connected with said bolt to retract the bolt from said strike engaging position to a strike releasing position when the handle is actuated and an inner handle mounted on said inner plate and operatively connected with the bolt to retract the same when the inner handle is actuated.
Claim 2
Dependent Claim
239 words
A door lock comprising inner and outer door lock plates adapted to be mounted in registering relation against the inner and outer faces of a door in a position overlying an opening through the door, said outside plate having a generally central recess therein adapted to project into said opening in the door and a peripheral flange surrounding said recess and adapted to overlie the outer face of the door around the opening therein, an outer door operating handle mounted in said recess and normally disposed substantially wholly within said recess, said recess having a generally flat bottom wall, a lock bolt slideably supported on the inner face of said bottom wall for reciprocation in a rectilinear path, said bolt having a generally flat thin body portion provided with a projection extending laterally from one side thereof in a direction parallel to the path of reciprocation of the bolt, said projection extending laterally beyond said recess and having a relatively thick bolt nose on the end thereof which is adapted to engage with a door frame mounted strike to retain the door in a closed position, said exterior handle being operatively connected with said bolt to retract the bolt from said strike engaging position to a strike releasing position when the handle is actuated and an inner handle mounted on said inner plate and operatively connected with the bolt to retract the same when the inner handle is actuated.
Claim 3
Dependent Claim
17 words
A door lock is called for in claim 1 wherein the bolt comprises a sheet metal stamping.
Claim 4
Dependent Claim
31 words
A door lock as called for in claim 2 wherein said lateral extension is bent out of the plane of the body portion of the bolt to form said bolt nose.
Claim 5
Dependent Claim
23 words
A door lock as called for in claim 1 wherein said bolt nose comprises a rigid metal block secured to said lateral extension.
Claim 6
Dependent Claim
19 words
A door lock as called for in claim 4 wherein said lateral extension is wrapped around said metal block.
Claim 7
Dependent Claim
88 words
A door lock as called for in claim 1 wherein said bolt body is formed with a non-circular opening therein, a stem connected with one of said handles for rotation thereby, a generally flat tumbler rotatable with said spindle and disposed adjacent the inner face of said bottom wall within the opening in said bolt, said tumbler being disposed in a plane parallel to the plane of the bolt body and engageable with the edge of the bolt opening to retract the bolt when the tumbler is rotated.
Claim 8
Dependent Claim
123 words
A door lock as called for in claim 1 wherein the bolt body has a second lateral projection thereon extending beyond said recess in the outer plate, said second projection having a slot therein, the longitudinal axis of said slot being parallel to the axis along which the bolt reciprocates, said slot having two axially spaced portions of different widths, a stud mounted on said inner plate for axial reciprocation in a direction perpendicular to the plane of the bolt, said stud extending through said slot and having two axially contiguous portions of different transverse size, said stud being axially shiftable to engage the stud portion of greater transverse size with the wider portion of the slot to lock the bolt against reciprocation.
Claim 9
Dependent Claim
42 words
A door lock as called for in claim 7 including a key operated rotatable lock cylinder mounted on said outer plate and means connected with said lock cylinder and stud for shifting the stud axially to and from said bolt locking position.
Claim 10
Dependent Claim
43 words
A door lock as called for in claim 8 wherein said last-mentioned means comprises a sleeve surrounding said lock cylinder and shiftable axially thereon in response to rotation of the lock cylinder, said sleeve being connected with said stud for axial reciprocation therewith.
Claim 11
Dependent Claim
71 words
A door lock as called for in claim 9 wherein said sleeve has a circumferentially extending slot therein having axially opposed portions inclined to the axis of the sleeve at an acuTe angle, a pin on the lock cylinder rotatable therewith and projecting through said slot and engageable with said inclined portions to shift the sleeve axially in opposite directions in response to rotation of the lock cylinder in opposite directions.
Claim 12
Dependent Claim
66 words
A door lock as called for in claim 9 including a stem connected with said inner handle and rotated thereby, a cam mounted on the stem for rotation therewith, a lock plate adapted to be reciprocated when said cam is rotated and means on said lock plate engaging said stud for shifting the stud to the unlocked position in response to reciprocation of said lock plate.
Claim 13
Dependent Claim
36 words
A door lock as called for in claim 11 wherein said bolt, said tumbler, said lock plate and said cam are disposed in stacked relation against the inner face of the bottom wall of said recess.
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) | 1975-10-17 | 1976-04-17 | 1976-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-17 | 1980-04-17 | 1980-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-17 | 1984-04-17 | 1984-10-17 | $7700.00 | Window Closed / Lapsed |