Patent US3890814A successfully refreshed from Google Patents.
US3890814A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pushbutton lockset mechanism
Assignee: MCCLURE FURNITURE IND Inc
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Filing: 1974-08-28
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Granted: 1975-06-24
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Expires: 1994-08-28
Abstract
Abstract A pushbutton lockset for furniture and the like, equipped with a device that, upon disengagement of the lock, thrusts open the part of the furniture piece that opens or slides out. The lockset includes two cylindrical elements, which are engaged head to head diagonally at about a 90* angle; one of the two cylinders contains a latchbolt that engages with the head of the second cylinder and which is withdrawn by action of a pushbutton; the other of the two cylinders, latched by the bolt to the first one, contains a springloaded plunger constantly under tension and pressing perpendicularly on the first latchbolt cylinder.
Inventors
- 👤 Marco Fantoni
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 12:57
CPC Classifications
E; E05; E05B; E05B17/00; E05B17/0025; E05B17/0033; E05B17/0037; E05C; E05C1/00; E05C1/08; E05C1/12; E05C1/14; Y; Y10; Y10S; Y10S292/00; Y10S292/72; Y10T; Y10T292/00; Y10T292/08; Y10T292/096; Y10T292/0969; Y10T292/097; Y10T292/0976; Y10T70/00; Y10T70/50; Y10T70/5093; Y10T70/5155; Y10T70/5199; Y10T70/5204; Y10T70/5221; Y10T70/5372; Y10T70/5385; Y10T70/5389; Y10T70/55; Y10T70/5513
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
141 words
Locking apparatus for furniture articles and the like, comprising: a first elongated member; first means mounting said first member to a first furniture panel for movement along the longitudinal axis of said first member; a second elongated member; second means mounting said second member to a second furniture panel for movement along the longitudinal axis of said second member; first biasing means urging said first member into locking engagement with said second mounting means for locking said first and second furniture panels against relative movement; second biasing means urging said second member into engagement with said first mounting means; and means coupled to said first member for moving said first member in a direction opposite to its normally biased direction and out of locking engagement with said second mounting means to permit relative movement of said first and second furniture panels.
Claim 2
Dependent Claim
141 words
Locking apparatus for furniture articles and the like, comprising: a first elongated member; first means mounting said first member to a first furniture panel for movement along the longitudinal axis of said first member; a second elongated member; second means mounting said second member to a second furniture panel for movement along the longitudinal axis of said second member; first biasing means urging said first member into locking engagement with said second mounting means for locking said first and second furniture panels against relative movement; second biasing means urging said second member into engagement with said first mounting means; and means coupled to said first member for moving said first member in a direction opposite to its normally biased direction and out of locking engagement with said second mounting means to permit relative movement of said first and second furniture panels.
Claim 3
Dependent Claim
99 words
The locking apparatus according to claim 1, wherein: said first mounting means comprises a first hollow cylinder in which said first elongated member is movably mounted; said first biasing means comprises a first spring located in said first hollow cylinder and engaging said first member and a wall of said first hollow cylinder; said second mounting means comprises a second hollow cylinder in which said second elongated member is movably mounTed; and said second biasing means comprises a second spring located in said second hollow cylinder and engaging said second member and a wall of said second hollow cylinder.
Claim 4
Dependent Claim
49 words
Locking apparatus according to claim 2, wherein said first elongated member comprises a shaft having a notched central portion; and said means coupled to said first elongated member for moving said first member comprises a pushbutton mounted to said first furniture panel for engagement with said notched central portion.
Claim 5
Dependent Claim
70 words
Locking apparatus according to claim 1, further comprising: locking means movable between locking and unlocking positions, wherein in said locking position, said locking means engages said first member to prevent movement thereof out of locking engagement with said second mounting means and in said unlocking position said locking means is disengaged from said first member to permit movement of the latter out of locking engagement with said second mounting member.
Claim 6
Dependent Claim
43 words
Locking apparatus according to claim 4, wherein said locking means comprises a cam eccentrically mounted on a rotatable shaft, said cam engaging one end of said first member in said locking position and being disengaged from said first member in said unlocking position.
Claim 7
Dependent Claim
28 words
Locking apparatus according to claim 1, wherein said first and second elongated members are located such that their respective longitudinal axes intersect at an angle of approximately 90*.
Claim 8
Dependent Claim
64 words
Locking apparatus according to claim 6, wherein said first and second furniture panels have complementary bevelled facing edges, said first and second elongated members being mounted to their respective panels to project outwardly from the respective bevelled edges of said panels, wherein the plane of said bevelled edges substantially bisects the angle formed by the intersecting longitudinal axes of said first and second members.
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) | 1978-06-23 | 1978-12-23 | 1979-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-06-23 | 1982-12-23 | 1983-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-06-23 | 1986-12-23 | 1987-06-24 | $7700.00 | Window Closed / Lapsed |