US3939678A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Telephone locking apparatus
Assignee: NEW PRODUCT DEV CORP
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Filing: 1975-01-06
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Granted: 1976-02-24
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Expires: 1995-01-06
Abstract
Abstract A telephone locking apparatus. The apparatus includes a base plate and keeper plate which cooperatively define jaw means for clamping the apparatus to the handhold shelf of a telephone desk set. The apparatus also includes a locking plate hingedly connected to the base plate and interlockable therewith for maintaining the switch hooks of the telephone in a depressed state to substantially avoid unauthorized use of the telephone.
Inventors
- 👤 Floyd M. Wagoner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 03:14
CPC Classifications
H; H04; H04M; H04M1/00; H04M1/66; H04M1/667; Y; Y10; Y10S; Y10S70/00; Y10S70/57; Y10S70/72; Y10T; Y10T70/00; Y10T70/40; Y10T70/411; Y10T70/50; Y10T70/80; Y10T70/8838
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
238 words
An apparatus for locking a telephone, said telephone having a switch hook and a handhold shelf, comprising, in combination: means for rigidly attaching said apparatus to said telephone, said attaching means including a base plate, a keeper plate, and means for adjustably securing said base plate to said keeper plate, said keeper plate having a pair of side walls, said side wall having a first end portion, an intermediate portion and a second end portion, said side wall having a height greatest at said first end portion and inclining downwardly from said first end portion to said intermediate portion, said first end portion engaging said base plate in an assembled state, said base plate, keeper plate and securing means cooperatively defining jaw means for adjustably clamping said handhold shelf, said keeper plate pivoting substantially about said engagement of said first end portion and said base plate as said securing means is adjusted; a locking plate hingedly connected to said attaching means and operable in at least a first state, said locking plate engaging and depressing said switch hook in said first state; and means for selectively interlocking said locking plate and said attaching means whenever said locking plate is in said first state, said interlocking means being fixedly secured to said locking plate, said attaching means substantially enclosing said interlocking means in said first state, whereby tampering with said interlocking means in said first state is substantially avoided.
Claim 2
Independent Claim
238 words
An apparatus for locking a telephone, said telephone having a switch hook and a handhold shelf, comprising, in combination: means for rigidly attaching said apparatus to said telephone, said attaching means including a base plate, a keeper plate, and means for adjustably securing said base plate to said keeper plate, said keeper plate having a pair of side walls, said side wall having a first end portion, an intermediate portion and a second end portion, said side wall having a height greatest at said first end portion and inclining downwardly from said first end portion to said intermediate portion, said first end portion engaging said base plate in an assembled state, said base plate, keeper plate and securing means cooperatively defining jaw means for adjustably clamping said handhold shelf, said keeper plate pivoting substantially about said engagement of said first end portion and said base plate as said securing means is adjusted; a locking plate hingedly connected to said attaching means and operable in at least a first state, said locking plate engaging and depressing said switch hook in said first state; and means for selectively interlocking said locking plate and said attaching means whenever said locking plate is in said first state, said interlocking means being fixedly secured to said locking plate, said attaching means substantially enclosing said interlocking means in said first state, whereby tampering with said interlocking means in said first state is substantially avoided.
Claim 3
Dependent Claim
36 words
An apparatus as claimed in claim 1 wherein said interlocking means includes a cylinder lock having a rotatable flange member, said rotatable flange member interposing said base plate and said keeper plate in said first state.
Claim 4
Dependent Claim
46 words
An apparatus as claimed in claim 2 wherein said base plate defines an aperture for receipt of said cylinder lock, said rotatable flange member being operable in a locking state to engage said base plate, whereby said locking plate is locked relative to said base plate.
Claim 5
Dependent Claim
26 words
An apparatus as claimed in claim 1 wherein said base plate engages the top of said handhold shelf and said keeper plate engages the bottom thereof.
Claim 6
Dependent Claim
45 words
An apparatus as claimed in claim 1 wherein said handhold shelf includes a downwardly extending lip, said side wall of said keeper plate defining an upwardly opening notch in said intermediate portion, said upwardly opening notch receiving said downwardly extending lip in said assembled state.
Claim 7
Dependent Claim
26 words
An apparatus as claimed in claim 1 wherein said base plate defines a substantially vertical edge, said edge abutting said handhold shelf in said assembled state.
Claim 8
Dependent Claim
42 words
An apparatus as claimed in claim 1 wherein said side wall of said keeper plate inclines downwardly from said second end portion to said intermediate portion, whereby said second end portion engages the bottom of said handhold shelf in said assembled state.
Claim 9
Dependent Claim
31 words
An apparatus claimed in claim 1 wherein said locking plate substantially conceals said securing means in said first state, whereby unauthorized removal of said apparatus from said telephone is substantially avoided.
Claim 10
Dependent Claim
35 words
An apparatus claimed in claim 1 wherein said base plate and said keeper plate cooperatively define a rounded continuous end adjacent said first end portion of said side wall, such that said telephone is transportable.
Claim 11
Dependent Claim
25 words
An apparatus as claimed in claim 1 wherein said locking plate includes a pair of extending wings for engagement and depression of said switch hook.
References Cited (Backward Citations)
US3469041A
Cited
US3624317A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-02-23 | 1979-08-25 | 1980-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-02-23 | 1983-08-25 | 1984-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-02-23 | 1987-08-25 | 1988-02-24 | $7700.00 | Window Closed / Lapsed |