Patent US3797291A successfully refreshed from Google Patents.
US3797291A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Separable key-head latch and case
Assignee: Individual
•
Filing: 1972-08-14
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Granted: 1974-03-19
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Expires: 1992-08-14
Abstract
Abstract A key system especially suited for encasing a multiplicity of different sized keys with facility, reducing their weight and bulk and with indicating means assuring the selectivity as circumstances require; and comprised of separable keys and a common head therefor with a releasable self-binding latch for manipulation of said keys respectively; and all of which reduces the keys to their minimum shank configurations containing the lock combinations and adapted to be stored in a case associated therewith and having individual pockets selected according to their relative size.
Inventors
- 👤 P Simorghi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:54
CPC Classifications
E; E05; E05B; E05B19/00; E05B19/04; A; A45; A45C; A45C11/00; A45C11/32; Y; Y10; Y10T; Y10T70/00; Y10T70/70; Y10T70/7441; Y10T70/778; Y10T70/7791; Y10T70/7802; Y10T70/7876; Y10T70/80; Y10T70/8432; Y10T70/8676
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
86 words
A self-binding latch for a separable key shank and head therefor and comprising axially and slideably disengageable male and female coupling members, there being a lateral depression in the male member, there being a lateral guideway in the female member and disposed acutely divergent with respect to the sliding motion between said members, there being a laterally retractable sliding bolt shiftably carried in the guideway and engageable in said lateral depression and with spring means opposing retraction thereof, and manually engageable means to retract said bolt.
Claim 2
Dependent Claim
86 words
A self-binding latch for a separable key shank and head therefor and comprising axially and slideably disengageable male and female coupling members, there being a lateral depression in the male member, there being a lateral guideway in the female member and disposed acutely divergent with respect to the sliding motion between said members, there being a laterally retractable sliding bolt shiftably carried in the guideway and engageable in said lateral depression and with spring means opposing retraction thereof, and manually engageable means to retract said bolt.
Claim 3
Dependent Claim
52 words
The latch for a separable key shank and head therefor as set forth in claim 1 wherein the male and female members are elongated with minimal clearance adapted to slideably fit one into the other, the male member having a nose complementary to and seatable onto a bottom in the female member.
Claim 4
Dependent Claim
45 words
The latch for separable key shank and head therefor as set forth in claim 1 wherein the retractable bolt is slideably carried in the a guideway disposed divergently at an acute angle with respect to sliding motion of the male member in said female member.
Claim 5
Dependent Claim
51 words
The latch for a separable key shank and head therefor as set forth in claim 1, wherein the lateral depression in the male member is semi-circular, and wherein the retractable bolt is shiftably carried by the female member in a line of motion parallel to the tangency of said semi-circular depression.
Claim 6
Dependent Claim
60 words
The latch for a separable key shank and head therefor as set forth in claim 1, wherein the lateral depression in the male member is semi-circular and curved to extend longitudinally, and wherein the retractable bolt has a rounded nose complementary to and coextensively engageable with said lateral depression and disposed divergently parallel to the tangency of said semi-circular depression.
Claim 7
Dependent Claim
74 words
The latch for a separable key shank and head therefor as set forth in claim 1 wherein the male and female coupling members are of rectangular cross section, the retractable bolt having a flat wall faced away from the male member and engaged with an opposing wall of the a guideway carrying said bolt and disposed divergently at an acute angle with respect to sliding motion of the male member in said female member.
Claim 8
Dependent Claim
104 words
The latch for a separable key shank and head therefor as set forth in claim 1, wherein the male and female coupling members are of rectangular cross section, wherein the lateral depression in the male member is semi-circular, and wherein the retractable bolt has a flat wall faced away from the male member and engaged with an opposing wall of the a guideway in the female member shiftably carrying said bolt in a line of motion parallel to the tangency of said semi-circular depression and disposed divergently at an acute angle with respect to sliding motion of the male member in said female member.
Claim 9
Dependent Claim
122 words
The latch for a separable key shank and head therefor as set forth in claim 1, wherein the male and female coupling members are of rectangular cross section, wherein the lateral depression in the male member is semi-circular and curved to extend longitudinally, and wherein the retractable bolt has a rounded nose complementary to and coextensively engageable with said lateral depression and has a flat wall faced away from the male member and engaged with an opposing wall of the guideway in the female member shiftably carrying said bolt in a line of motion parallel to the tangency of said semi-circular depression and disposed divergently at an acute angle with respEct to sliding motion of the male member in said female member.
Claim 10
Dependent Claim
58 words
The latch for a separable key shank and head therefor as set forth in claim 1, wherein the male and female members are elongated to slideably interengage in stopped relation with spaced opposed faces, and wherein a snubber collar of depressibly resilient material is carried by one of said members and disposed compressibly between said spaced opposed faces.
References Cited (Backward Citations)
FR624138A
Cited
US3349589A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-03-18 | 1977-09-17 | 1978-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-03-18 | 1981-09-17 | 1982-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-03-18 | 1985-09-17 | 1986-03-19 | $7700.00 | Window Closed / Lapsed |