US4398855A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Toggle type fastener
Assignee: Individual
•
Filing: 1981-04-06
•
Granted: 1983-08-16
•
Expires: 2001-04-06
Abstract
Abstract This unique cylinder shaped toggle type fastener may be used with either a bolt having a saddle type head or a bolt having a saddle type nut. The shape of the slotted toggle having one end tooth shaped allows it to be easily tipped into a saddle from the parallel position with the shank to the perpendicular position from the shank of the bolt or screw after being inserted through the hole in the material it is to be fastened to. The unique shape also leaves a flat V-shaped surface that abutts to the inside of the material. The design of the toggle eliminates the necessity of any pins giving the toggle much greater strength than other varieties. This type of fastener may be manufactured out of any kind of metal, plastic or nylon.
Inventors
- 👤 John V. Hultquist
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 22:05
CPC Classifications
F; F16; F16B; F16B13/00; F16B13/04; F16B13/08; F16B13/0808
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
188 words
A toggle type bolt or screw fastener comrising: (a) a shank which is at least partially threaded, wherein one end of said shank includes a saddle type end portion formed with a concave surface, (b) a substantially cylindrically shaped member having a longitudinal bore therethrough, said member being fitted around said shank, wherein said member has a length less than that of said shank, said member having longitudinal slots extending from opposite ends on opposite sides thereof in a manner such that an opening is defined which extends traversely through said member, said opening being unthreaded and being sufficiently large to enable said member to be tilted perpendicular to said shank after said member and said saddle end portion are inserted through a hole in a desired material, wherein the surfaces defined on said member by said longitudinal slots are planar. wherein said concave surface of said saddle end portion of said shank is adapted to engage and bear against the top and side surface of said member when said member is tilted perpendicularly to said shank to prevent the shank from rotating with respect to said member.
Claim 2
Dependent Claim
188 words
A toggle type bolt or screw fastener comrising: (a) a shank which is at least partially threaded, wherein one end of said shank includes a saddle type end portion formed with a concave surface, (b) a substantially cylindrically shaped member having a longitudinal bore therethrough, said member being fitted around said shank, wherein said member has a length less than that of said shank, said member having longitudinal slots extending from opposite ends on opposite sides thereof in a manner such that an opening is defined which extends traversely through said member, said opening being unthreaded and being sufficiently large to enable said member to be tilted perpendicular to said shank after said member and said saddle end portion are inserted through a hole in a desired material, wherein the surfaces defined on said member by said longitudinal slots are planar. wherein said concave surface of said saddle end portion of said shank is adapted to engage and bear against the top and side surface of said member when said member is tilted perpendicularly to said shank to prevent the shank from rotating with respect to said member.
Claim 3
Dependent Claim
31 words
A fastener in accordance with claim 1, wherein each end of said member is tapered at an angle of approximately 30 to 60 degrees from the longitudinal axis of said member.
Claim 4
Dependent Claim
26 words
A fastener in accordance with claim 2, wherein said tapered ends are approximately parallel to each other wherein one said tapered end includes a tooth-like portion.
Claim 5
Dependent Claim
25 words
A fastener in accordance with claim 1, wherein one end of said member is adapted to rest within said saddle end portion of said shank.
Claim 6
Dependent Claim
29 words
A fastener in accordance with claim 1, wherein the surface of said member which is adapted to bear against said material is rough so as to grip said material.
Claim 7
Dependent Claim
21 words
A fastener in accordance with claim 1, wherein the length of said member is approximately twice the diameter of said shank.
Claim 8
Dependent Claim
12 words
A fastener in accordance with claim 1, wherein said shank comprises metal.
Claim 9
Dependent Claim
12 words
A fastener in accordance with claim 1, wherein said shank comprises plastic.
Claim 10
Dependent Claim
17 words
A fastener in accordance with claim 1, wherein said saddle end portion is integral with said shank.
Claim 11
Dependent Claim
20 words
A fastener in accordance with claim 1, wherein said member is detachably adhered to said shank by means of adhesive.
References Cited (Backward Citations)
US549069A
Cited
US1733133A
Cited
US1084284A
Cited
US1516242A
Cited
US1733693A
Cited
GB600116A
Cited
US2519511A
Cited
US3127807A
Cited
US4285264A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-08-15 | 1987-02-14 | 1987-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-08-15 | 1991-02-14 | 1991-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-08-15 | 1995-02-14 | 1995-08-16 | $7700.00 | Window Closed / Lapsed |