US3636742A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lock-out key holder
Assignee: FILLEY ENTERPRISES Inc
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Filing: 1970-05-22
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Granted: 1972-01-25
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Expires: 1990-05-22
Abstract
Abstract A solid disc is attached to a hinged, split cylinder. A lock is on one hemicylinder so the device may be secured over a door knob to shield the keyhole of a knob lock with the solid disc. A steel spring on the inside of the disc provides a holder for a key to the knob lock and a lining of sponge rubber inside the hemicylinders makes the device adaptable to several size knobs.
Inventors
- 👤 Gerrel B Raney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:46
CPC Classifications
A; A47; A47G; A47G29/00; A47G29/10; Y; Y10; Y10S; Y10S70/00; Y10S70/58; Y10T; Y10T70/00; Y10T70/50; Y10T70/5009; Y10T70/5031; Y10T70/70; Y10T70/7441; Y10T70/7915; Y10T70/7955; Y10T70/796
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
147 words
A knob lock shielding device comprising in combination: a. a disc-shaped shield, b. a cylinder coaxial with said shield, c. said cylinder composed of two hemicylinders, namely, i. a first hemicylinder attached circumferentially to said shield, ii. a second hemicylinder hinged to the first hemicylinder, d. a washer with a hole coaxial with said shield, e. said washer composed of two hemiwashers, namely i. a first hemiwasher attached circumferentially to said first hemicylinder remote from said shield, ii. a second hemiwasher attached circumferentially to said second hemicylinder remote from said shield, f. a lock attached to the first hemicylinder, g. a bolt of the lock extending radially inwardly from the lock, h. a hole in the second hemicylinder located in mating relationship to the bolt j. so that when the bolt is shot, the hemicylinders with attached hemiwashers are locked together as a cylinder with attached washer.
Claim 2
Dependent Claim
147 words
A knob lock shielding device comprising in combination: a. a disc-shaped shield, b. a cylinder coaxial with said shield, c. said cylinder composed of two hemicylinders, namely, i. a first hemicylinder attached circumferentially to said shield, ii. a second hemicylinder hinged to the first hemicylinder, d. a washer with a hole coaxial with said shield, e. said washer composed of two hemiwashers, namely i. a first hemiwasher attached circumferentially to said first hemicylinder remote from said shield, ii. a second hemiwasher attached circumferentially to said second hemicylinder remote from said shield, f. a lock attached to the first hemicylinder, g. a bolt of the lock extending radially inwardly from the lock, h. a hole in the second hemicylinder located in mating relationship to the bolt j. so that when the bolt is shot, the hemicylinders with attached hemiwashers are locked together as a cylinder with attached washer.
Claim 3
Dependent Claim
32 words
The invention as defined in claim 1 with the additional limitation of k. a resilient leaf spring means attached to the disc within the cylinder for holding a key within the device.
Claim 4
Dependent Claim
44 words
The invention as defined in claim 1 with the additional limitations of k. a door knob having m. a shank, n. said device enclosing said knob with o. the washer surrounding said shank, and p. said knob larger than the hole in the washer.
Claim 5
Dependent Claim
32 words
The invention as defined in claim 3 with the additional limitation of q. a resilient leaf spring means attached to the disc within the cylinder for holding a key within the device.
Claim 6
Dependent Claim
24 words
The invention as defined in claim 1 with the additional limitation of k. compressible, resilient padding material adhered to the inside of both hemicylinders.
Claim 7
Dependent Claim
44 words
The invention as defined in claim 5 with the additional limitations of m. a door knob having n. a shank, o. said device enclosing said knob with p. the washer surrounding said shank, and q. said knob larger than the hole in the washer.
Claim 8
Dependent Claim
32 words
The invention as defined in claim 5 with the additional limitation of m. a resilient leaf spring means attached to the disc within the cylinder for holding a key within the device.
Claim 9
Dependent Claim
64 words
The invention as defined in claim 7 with the additional limitations of n. a door knob having o. a shank, p. said device enclosing said knob with q. the washer surrounding said shank, and r. said knob larger than the hole in the washer. 9. The invention as defined in claim 8 with the additional limitation of s. said padding material being sponge rubber.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-01-24 | 1975-07-26 | 1976-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-24 | 1979-07-26 | 1980-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-24 | 1983-07-26 | 1984-01-25 | $7700.00 | Window Closed / Lapsed |