US Patent: 1,555,384
|
| Tumbler Key
|
|
Patentee:
|
|
| Gustav A. Reiter (exact or similar names) - San Francisco, San Francisco County, CA |
|
|
Patent Dates:
|
| Applied: |
Dec. 18, 1923 |
| Granted: |
Sep. 29, 1925 |
|
Patent Pictures:
[
1 | 2
]
|
|
|
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward
Joel Havens
MJD Auctions
|
|
Description: |
| Abstract:
My invention relates to keys for door locks and the like wherein a tumbler carrier is mounted in connection with a key bit for locking the bit in engagement with a lock to prevent the operation of the lock by an unauthorized person.
Claim:
A key comprising a bit adapted for insertion into a lock for operating the locking member thereof, said bit being provided with a grooved shank having an annular bead formed thereon and intersected by the groove; a securing member provided with a bearing portion rotatably engaging the grooved shank; an extension formed upon the securing member to engage the bead and normally hold the securing member upon the ,shank, said extension being initially moved past the bead through the groove; a plurality of tumblers mounted within the securing member and adapted to engage apertures formed within the shank in communication with the groove for locking the bit. against movement within the lock; and an actuating member adapted to be inserted into the groove to depress the tumblers to releasing position whereby the bit may be turned within the lock by said actuating member to operate the locking member and to permit withdrawal of the bit and the securing member from the lock.
|
|
){kind=link}
){kind=link}