US3964948A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for dosing a locking agent into a threaded hole
Assignee: MAN AG
•
Filing: 1974-11-25
•
Granted: 1976-06-22
•
Expires: 1994-11-25
Abstract
Abstract A dose of a liquid or semi-liquid locking agent is enclosed within a hollow wall to form a capsule. The capsule is introduced into a threaded blind hole, after which a screw is threaded into the hole. Movement of the screw into the hole crushes the capsule to release the locking agent. The collapsed capsule wall fills the space between the inner end of the screw and the bottom of the blind hole, and the locking agent is forced into the helical space between the screw threads and the hole threads.
Inventors
- 👤 Walter Busse
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 01:50
CPC Classifications
F; F16; F16B; F16B39/00; F16B39/22; F16B39/225; F16B2200/00; F16B2200/60; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49885
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
179 words
A method of introducing a dose of a liquid or semi-liquid locking agent into the helical space between the threads of a screw and a threaded blind hole accommodating the screw, comprising the steps of: a. providing a capsule of compact shape comprising the locking agent completely enclosed in a hollow wall, b. inserting the capsule into the bottom of the blind hole with the major portion of the capsule volume beneath the lowest point of engagement of the screw and hole threads after the screw has been threaded all the way into the blind hole, and c. threading the screw into the hole so that the screw crushes the capsule against the bottom of the hole and releases the locking agent into the helical space between the screw and hole wall during the final portion of the movement of the screw into the hole, the crushed capsule wall material approximately filling the space between the inner end of the screw and the bottom of the hole after the screw has been threaded all the way into the hole.
Claim 2
Independent Claim
179 words
A method of introducing a dose of a liquid or semi-liquid locking agent into the helical space between the threads of a screw and a threaded blind hole accommodating the screw, comprising the steps of: a. providing a capsule of compact shape comprising the locking agent completely enclosed in a hollow wall, b. inserting the capsule into the bottom of the blind hole with the major portion of the capsule volume beneath the lowest point of engagement of the screw and hole threads after the screw has been threaded all the way into the blind hole, and c. threading the screw into the hole so that the screw crushes the capsule against the bottom of the hole and releases the locking agent into the helical space between the screw and hole wall during the final portion of the movement of the screw into the hole, the crushed capsule wall material approximately filling the space between the inner end of the screw and the bottom of the hole after the screw has been threaded all the way into the hole.
References Cited (Backward Citations)
US2666354A
Cited
US3140967A
Cited
US3006671A
Cited
US3146142A
Cited
US3164560A
Cited
US3189227A
Cited
US3298144A
Cited
US3339003A
Cited
US3485132A
Cited
US3731791A
Cited
US3430449A
Cited
US3517954A
Cited
US3550270A
Cited
US3639137A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-06-22 | 1979-12-22 | 1980-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-06-22 | 1983-12-22 | 1984-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-06-22 | 1987-12-22 | 1988-06-22 | $7700.00 | Window Closed / Lapsed |