US3865500A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Locking handle
Assignee: Individual
•
Filing: 1973-07-09
•
Granted: 1975-02-11
•
Expires: 1993-07-09
Abstract
Abstract A locking handle is used in combination with a hub portion. The locking handle comprises a shaft locking member having a lower portion and a fixed upper portion. The lower portion is movable with respect to the fixed upper portion. At least one spline member is disposed on the upper portion and the lower portion. Each of the upper and lower portions includes a mating surface having an inclined surface portion. Biasing means is used to urge the mating surfaces of the upper and lower portions together whereby the spline members on the upper and lower portions are out of alignment with respect to each other when the handle is not engaged with the hub portion. When the shaft locking member is placed into the female member of the hub portion, the spline members on the upper and lower portions are in alignment with respect to each other and the biasing force of the biasing means is transmitted to the hub portion thereby holding the handle in place.
Inventors
- 👤 E Strohm Newell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 02:02
CPC Classifications
F; F16; F16D; F16D1/00; F16D1/10; F16D1/104; F16B; F16B2200/00; F16B2200/69; F16B2200/73; Y; Y10; Y10T; Y10T279/00; Y10T279/17; Y10T279/17957; Y10T403/00; Y10T403/70; Y10T403/7026; Y10T403/7033; Y10T403/7075; Y10T403/7077; Y10T74/00; Y10T74/20; Y10T74/20576; Y10T74/20732; Y10T74/20744; Y10T74/20762
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
145 words
A locking handle for turning a hub portion comprising: a. a shaft locking member engageable with the hub portion and including a lower portion and a fixed upper portion, b. said lower portion being movable with respect to the fixed upper portion, c. at least one spline member disposed on the upper portion and the lower portion, d. said upper portion and said lower portion each including a mating surface having an inclined surface portion, and e. biasing means having a biasing force which urges the mating surfaces of the upper and lower portions together to cause the spline members on the upper and lower portions to be out of alignment with respect to each other when the handle is not engaged with the hub portion, f. the spline member of the lower portion being effective to transmit said biasing force to the hub portion.
Claim 2
Dependent Claim
145 words
A locking handle for turning a hub portion comprising: a. a shaft locking member engageable with the hub portion and including a lower portion and a fixed upper portion, b. said lower portion being movable with respect to the fixed upper portion, c. at least one spline member disposed on the upper portion and the lower portion, d. said upper portion and said lower portion each including a mating surface having an inclined surface portion, and e. biasing means having a biasing force which urges the mating surfaces of the upper and lower portions together to cause the spline members on the upper and lower portions to be out of alignment with respect to each other when the handle is not engaged with the hub portion, f. the spline member of the lower portion being effective to transmit said biasing force to the hub portion.
Claim 3
Dependent Claim
32 words
A locking handle as defined in claim 1 wherein the spline member on the upper portion includes a lead-in section at the end of the upper portion disposed adjacent the lower portion.
Claim 4
Dependent Claim
35 words
A locking handle as defined in claim 1 wherein the inclined surface portions are at an acute angle with respect to a plane which is normal to the longitudinal axis of the shaft locking member.
Claim 5
Dependent Claim
46 words
A locking handle as defined in claim 1 wherein the inclined surface portions have an area sufficient to maintain mating contact between the upper and lower portions when the spline member on the upper portion is in alignment with the spline member of the lower portion.
Claim 6
Dependent Claim
42 words
A locking handle as defined in claim 4 wherein said inclined surface portion includes a plurality of surface sections each inclined at the same angle with respect to a plane which is normal to the longitudinal axis of the shaft locking member.
Claim 7
Dependent Claim
47 words
A locking handle as defined in claim 5 wherein there is a plurality of spline members on the upper and lower portions, each of the spline members on the upper portion includes a lead-in section extending from the end of the upper portion adjacent the lower portion.
Claim 8
Dependent Claim
42 words
A locking handle as defined in claim 1 wherein said biasing means includes a screw member tightly screwed into the lower portion and spring means acting on the screw member to urge the lower portion into positive engagement with the upper portion.
Claim 9
Dependent Claim
86 words
A locking handle as defined in claim 7 wherein the screw member has a shaft and a head portion and extends through a bore in said upper portion along the longitudinal axis of the locking member, said bore includes a shoulder disposed intermediate the ends of said upper portion, the spring means include a coil spring member disposed around the shaft, and said spring member has one end Thereof contiguous to the head portion of the screw and the other end thereof contiguous to said shoulder.
Claim 10
Dependent Claim
198 words
In an assembly having a handle and hub portion, the combination comprising: a. a shaft locking member located at the end of a handle shaft and including a lower portion and a fixed upper portion, b. said lower portion being movable with respect to the fixed upper portion, c. said hub portion including a female member for receiving said shaft locking member, d. at least one spline member disposed on the upper portion and the lower portion and each being adapted to fit into said female member, e. said upper portion and said lower portion each including a mating surface having an inclined surface portion, and f. biasing means having a biasing force which urges the mating surface of the upper and lower portions together to cause the spline members on the upper and lower portions to be out of alignment with respect to each other when the handle is not engaged with the hub portion and to cause said spline members to be in alignment when the shaft locking member is engaged with the female member of the hub portion so that the spline member of the lower portion transmits said biasing force to the female member.
Claim 11
Dependent Claim
198 words
In an assembly having a handle and hub portion, the combination comprising: a. a shaft locking member located at the end of a handle shaft and including a lower portion and a fixed upper portion, b. said lower portion being movable with respect to the fixed upper portion, c. said hub portion including a female member for receiving said shaft locking member, d. at least one spline member disposed on the upper portion and the lower portion and each being adapted to fit into said female member, e. said upper portion and said lower portion each including a mating surface having an inclined surface portion, and f. biasing means having a biasing force which urges the mating surface of the upper and lower portions together to cause the spline members on the upper and lower portions to be out of alignment with respect to each other when the handle is not engaged with the hub portion and to cause said spline members to be in alignment when the shaft locking member is engaged with the female member of the hub portion so that the spline member of the lower portion transmits said biasing force to the female member.
Claim 12
Dependent Claim
34 words
The combination as defined in claim 9 wherein the inclined surface portions are at an acute angle with respect to a plane which is normal to the longitudinal axis of the shaft locking member.
Claim 13
Dependent Claim
45 words
The combination as defined in claim 9 wherein the inclined surface portions have an area sufficient to maintain mating contact between the upper and lower portions when the spline member on the upper portion is in alignment with the spline member of the lower portion.
Claim 14
Dependent Claim
41 words
The combination as defined in claim 11 wherein the inclined surface portion includes a plurality of surface sections each inclined at the same angle with respect to a plane which is normal to the longitudinal axis of the shaft locking member.
Claim 15
Dependent Claim
52 words
The combination as defined in claim 12 wherein there is a plurality of spline members on the upper portion and the lower portion and each of the spline members on the upper portion includes a lead-in section extending from the end of the upper portion which is adjacent to the lower portion.
Claim 16
Dependent Claim
41 words
The combination as defined in claim 9 wherein said biasing means includes a screw member tightly screwed into the lower portion and spring means acting on the screw member to urge the lower portion into positive engagement with the upper portion.
Claim 17
Dependent Claim
85 words
The combination as defined in claim 14 wherein the screw member has a shaft and a head portion and extends through a bore in said upper portion along the longitudinal axis of the locking member, said bore includes a shoulder disposed intermediate the ends of said upper portion, said spring means includes a coil spring member disposed around the shaft, and said spring member has one end thereof contiguous to the head portion of the screw and the other end thereof contiguous to said shoulder.
Claim 18
Dependent Claim
109 words
A shaft end locking mechanism for retaining a shaft in a female member of a hub portion, said mechanism comprising: a. a fixed portion and a retainer portion movably disposed with respect to the fixed upper portion, b. at least one spline member disposed on the fixed portion and the retainer portion, c. said fixed portion and said retainer portion each including a mating surface having an inclined surface portion, and d. biasing means having a biasing force which urges the mating surfaces of the fixed and retainer portions together, e. the spline member of the retainer portion being effective to transmit said biasing force to the hub portion.
Claim 19
Dependent Claim
109 words
A shaft end locking mechanism for retaining a shaft in a female member of a hub portion, said mechanism comprising: a. a fixed portion and a retainer portion movably disposed with respect to the fixed upper portion, b. at least one spline member disposed on the fixed portion and the retainer portion, c. said fixed portion and said retainer portion each including a mating surface having an inclined surface portion, and d. biasing means having a biasing force which urges the mating surfaces of the fixed and retainer portions together, e. the spline member of the retainer portion being effective to transmit said biasing force to the hub portion.
Claim 20
Dependent Claim
25 words
A shaft end locking mechanism as defined in claim 16 wherein the fixed portion is an upper portion and the retainer is a lower portion.
Claim 21
Dependent Claim
49 words
A shaft end locking mechanism as defined in claim 17 wherein there is a plurality of spline members on the upper and lower portions, each of the spline members on the upper portion includes a lead-in section extending from the end of the upper portion adjacent the lower portion.
Claim 22
Dependent Claim
37 words
A shaft end locking mechanism as defined in claim 16 wherein the inclined surface portions are at an acute angle with respect to a plane which is normal to the longitudinal axis of the shaft locking member.
Claim 23
Dependent Claim
47 words
A shaft end locking mechanism as defined in claim 16 wherein the inclined surface portions have an area sufficient to maintain contact between the fixed and retainer portions when the spline member on the fixed portion is in alignment with the spline member of the retainer portion.
Claim 24
Dependent Claim
44 words
A shaft end locking mechanism as defined in claim 20 wherein said inclined surface portion includes a plurality of surface sections each inclined at the same angle with respect to a plane which is normal to the longitudinal axis of the shaft locking member.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-02-10 | 1978-08-12 | 1979-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-02-10 | 1982-08-12 | 1983-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-02-10 | 1986-08-12 | 1987-02-11 | $7700.00 | Window Closed / Lapsed |