Patent US4569547A successfully refreshed from Google Patents.
US4569547A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Door handle mount
Assignee: BALDWIN HARDWARE MANUFACTURING Corp A DIVISION OF MASCO Inc 841 WYOMISSING BLVD READING PA 19603 A CORP OF
•
Filing: 1984-02-27
•
Granted: 1986-02-11
•
Expires: 2004-02-27
Abstract
Abstract A door handle mount for a door having a rotatable spindle for operating a latch includes a lever handle cantilevered on the spindle and a trim plate having a spring resiliently biasing the spindle to seek a home position. The home position sought by the trim plate spring may be changed by relocating a movable stop. The user selectively biases the home position of the spindle to accommodate the cantilevered weight of the lever handle, to alter the bias from one direction to the other, or to temporarily cancel the bias during installation of the latch mechanism and trim.
Inventors
- 👤 Peter Fayerman
- 👤 Elwood Shaffer
- 👤 Paul James, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:57
CPC Classifications
E; E05; E05B; E05B3/00; E05B3/06; E05B3/065; Y; Y10; Y10S; Y10S292/00; Y10S292/60; Y10S292/61; Y10T; Y10T292/00; Y10T292/57; Y10T292/82
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
157 words
A door latch, comprising: a latch mechanism to be disposed in a door; a spindle extending from the latch mechanism beyond the surface of the door, rotation of the spindle around an axis causing operation of the latch mechanism; a lever handle fixable on the spindle to rotate therewith, the handle including a weight spaced from the axis such that gravity urges the weight to rotate the spindle around the axis; a trim plate to be affixed on the door; a rosette to be affixed on the spindle; a spring disposed between the trim plate and the rosette; the trim plate and the rosette each having an abutment disposed against the spring, whereby said rotation is opposed, the abutment of at least one of the rosette and the trim plate being movable and fixable on said at least one of the rosette and trim plate at a plurality of angularly-displaced positions around the axis of the spindle.
Claim 2
Dependent Claim
157 words
A door latch, comprising: a latch mechanism to be disposed in a door; a spindle extending from the latch mechanism beyond the surface of the door, rotation of the spindle around an axis causing operation of the latch mechanism; a lever handle fixable on the spindle to rotate therewith, the handle including a weight spaced from the axis such that gravity urges the weight to rotate the spindle around the axis; a trim plate to be affixed on the door; a rosette to be affixed on the spindle; a spring disposed between the trim plate and the rosette; the trim plate and the rosette each having an abutment disposed against the spring, whereby said rotation is opposed, the abutment of at least one of the rosette and the trim plate being movable and fixable on said at least one of the rosette and trim plate at a plurality of angularly-displaced positions around the axis of the spindle.
Claim 3
Dependent Claim
161 words
In a door latch having a latch mechanism to be disposed in a door, a spindle extending from the latch mechanism beyond the surface of the door, rotation of the spindle around an axis causing operation of the latch mechanism, a lever handle fixable on the spindle to rotate therewith, the handle including a weight spaced from the axis such that gravity urges the weight to rotate the spindle around the axis, the improvement comprising: a trim plate to be affixed on the door; a rosette to be affixed on the spindle; a spring disposed between the trim plate and the rosette; the trim plate and the rosette each having an abutment disposed against the spring, whereby said rotation is opposed, the abutment of at least one of the rosette and the trim plate being movable and fixable on said at least one of the rosette and trim plate at a plurality of angularly-displaced positions around the axis of the spindle.
Claim 4
Dependent Claim
161 words
In a door latch having a latch mechanism to be disposed in a door, a spindle extending from the latch mechanism beyond the surface of the door, rotation of the spindle around an axis causing operation of the latch mechanism, a lever handle fixable on the spindle to rotate therewith, the handle including a weight spaced from the axis such that gravity urges the weight to rotate the spindle around the axis, the improvement comprising: a trim plate to be affixed on the door; a rosette to be affixed on the spindle; a spring disposed between the trim plate and the rosette; the trim plate and the rosette each having an abutment disposed against the spring, whereby said rotation is opposed, the abutment of at least one of the rosette and the trim plate being movable and fixable on said at least one of the rosette and trim plate at a plurality of angularly-displaced positions around the axis of the spindle.
Claim 5
Dependent Claim
34 words
The door latch of claim 2, wherein the trim plate is aligned at a predetermined angle on the door, displaced from an angular home position to which the spindle is urged by the spring.
Claim 6
Dependent Claim
73 words
The door latch of claim 2, wherein the spring is a coil spring having at least one turn encircling the rosette, opposite ends of the coil spring being resiliently urged against the abutments, the abutments being a first post mounted on the trim plate and a second post mounted on the rosette, both said posts being radially spaced from the axis, the ends of the coil spring urging the abutments toward one another.
Claim 7
Dependent Claim
38 words
The door latch of claim 4, wherein at least one of the first and second posts is threadably attachable to said at least one of the rosette and the trim plate at two angularly-spaced locations around the axis.
Claim 8
Dependent Claim
52 words
The door latch of claim 4, further comprising a removable spacer disposed between the spring and the abutment of said at least one of the rosette and the trim plate, whereby removal of the spacer moves an angular home position around the axis, to which the spindle is urged by the spring.
References Cited (Backward Citations)
US412189A
Cited
US2470771A
Cited
US2631878A
Cited
US2729485A
Cited
US2727773A
Cited
US2985478A
Cited
US3156495A
Cited
US3211486A
Cited
US3418867A
Cited
US4071270A
Cited
US4042268A
Cited
US3954292A
Cited
US4123097A
Cited
US4453753A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-02-10 | 1989-08-12 | 1990-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-02-10 | 1993-08-12 | 1994-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-02-10 | 1997-08-12 | 1998-02-11 | $7700.00 | Window Closed / Lapsed |