US4263983A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Single stile ladder
Assignee: DON NORTON Manufacturing CO Inc
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Filing: 1979-04-17
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Granted: 1981-04-28
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Expires: 1999-04-17
Abstract
Abstract A portable, multisectional ladder for scaling poles, trees and like objects and a method of use thereof. Individual ladder sections are formed of steps welded to individual angle metal sections. The angle metal sections are removably joined using male/female connectors at either end thereof. One or more brackets welded to each section slidably retains an auto-type safety belt which can be releasably buckled about the object to be scaled. The brackets on each section except for the base section include a special belt cincher arrangement which includes means for drawing the belt into the recessed portion of the angle metal to forcibly tighten the belt about the object to be climbed, thereby eliminating any slippage or wobble in the ladder.
Inventors
- 👤 Don S. Norton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:14
CPC Classifications
E; E06; E06C; E06C1/00; E06C1/02; E06C1/38; E06C1/381; E06C1/34
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
278 words
A portable multisection ladder for scaing a pole, tree or like object comprising: (a) a plurality of sections including a base section and at least one extension section; (b) said base section including a first elongated member having a first longitudinal axis, at least one step fixedly mounted to said first elongated member transversely to said first longitudinal axis, and first means, including at least one first web engaging said first elongated member, for securing said first elongated member upright at the base of the object to be scaled; (c) each said at least one extension section including a second elongated member having a second longitudinal axis, and second means, including at least one second web slidably engaging said second elongated member, for securing said second elongated member upright to said object; (d) said at least one second web having two free ends; (e) said second member securing means including (1) means for slidably engaging said at least one second web to said second elongated member, (2) means mounted to said second web free ends, for joining said two free ends of said at least one second web and tightening said second web around said object, and (3) means, interposable between said object and a segment of said at least one second web, for drawing and holding said segment away from said object to tighten said web about said object and tighten said second member to said object; and (f) each of said plurality of sections being mountable to one another end-to-end such that said first longitudinal axis is aligned with the second longitudinal axis of said second elongated member of said each at least one extension section.
Claim 2
Dependent Claim
278 words
A portable multisection ladder for scaing a pole, tree or like object comprising: (a) a plurality of sections including a base section and at least one extension section; (b) said base section including a first elongated member having a first longitudinal axis, at least one step fixedly mounted to said first elongated member transversely to said first longitudinal axis, and first means, including at least one first web engaging said first elongated member, for securing said first elongated member upright at the base of the object to be scaled; (c) each said at least one extension section including a second elongated member having a second longitudinal axis, and second means, including at least one second web slidably engaging said second elongated member, for securing said second elongated member upright to said object; (d) said at least one second web having two free ends; (e) said second member securing means including (1) means for slidably engaging said at least one second web to said second elongated member, (2) means mounted to said second web free ends, for joining said two free ends of said at least one second web and tightening said second web around said object, and (3) means, interposable between said object and a segment of said at least one second web, for drawing and holding said segment away from said object to tighten said web about said object and tighten said second member to said object; and (f) each of said plurality of sections being mountable to one another end-to-end such that said first longitudinal axis is aligned with the second longitudinal axis of said second elongated member of said each at least one extension section.
Claim 3
Dependent Claim
79 words
A ladder as in claim 1 wherein: said at least one second web slidably engages said second elongated member in nominally spaced relation therewith, said web segment and said second elongated member defining a nominal space therebetween such that when said at least one second web surrounds said object, said web segment is disposed between said object and said second elongated member; and said interposable means includes means for engaging said segment to dray said segment into said space.
Claim 4
Dependent Claim
75 words
A ladder as in claim 2 wherein: said second elongated member includes an inside surface and an outside surface and includes two edges, said web segment being in confronting relation with said inside surface and at an outer boundary of said nominal space engaging said edges; and said at least one extension section further including actuation means, disposed at said outside surface, for causing said interposable means to draw said segment into said nominal space.
Claim 5
Dependent Claim
76 words
A ladder as in claim 3 wherein said second elongated member comprises a V-shaped angle metal and said drawing means includes a U-shaped bracket having two vertical legs and a central leg for engaging said web portion at its central leg and actuation means, disposed at the outside surface of said metal, for drawing the vertical legs of said bracket through said metal to pull said central leg and said web portion toward said inside surface.
Claim 6
Dependent Claim
36 words
A ladder as in claim 1 wherein said first and second member securing means each include an auto-type safety belt including a quick release buckle for releasably buckling said first and second webs about said object.
Claim 7
Dependent Claim
265 words
A portable, multisection ladder for scaling a pole, tree or similar object comprising: a plurality of sections including a base section and at least one extension section; said base section including a base elongated member having a longitudinal axis, at least one step mounted on said base elongated member transverse to said longitudinal axis, and first means, including a first web engaging said base elongated member, for tying said base elongated member to the base of the object to be scaled; said at least one extension section each including an extension elongated member having a longitudinal axis, an inside surface, an outside surface, and two spaced apart edges generally parallel to said longitudinal axis, and at least one step mounted on said extension elongated member transverse to said longitudinal axis; at least one of said at least one extension section including second means, including a second web slidably engaging said extension elongated member along said two edges, for tying said extension elongated member vertically to the object to be scaled above said base elongated member, said inside surface being in confronting relationship with said object such that the portion of said second web located between said two edges is nominally spaced from said extension elongated member; and means, actuatable at the outside surface of said extension elongated member and engaging said extension elongated member and said web portion, for drawing said web portion toward said object to tighten said second web about said object and tighten said extension elongated member to said object; each of said plurality of sections being mountable to one another end-to-end.
Claim 8
Dependent Claim
265 words
A portable, multisection ladder for scaling a pole, tree or similar object comprising: a plurality of sections including a base section and at least one extension section; said base section including a base elongated member having a longitudinal axis, at least one step mounted on said base elongated member transverse to said longitudinal axis, and first means, including a first web engaging said base elongated member, for tying said base elongated member to the base of the object to be scaled; said at least one extension section each including an extension elongated member having a longitudinal axis, an inside surface, an outside surface, and two spaced apart edges generally parallel to said longitudinal axis, and at least one step mounted on said extension elongated member transverse to said longitudinal axis; at least one of said at least one extension section including second means, including a second web slidably engaging said extension elongated member along said two edges, for tying said extension elongated member vertically to the object to be scaled above said base elongated member, said inside surface being in confronting relationship with said object such that the portion of said second web located between said two edges is nominally spaced from said extension elongated member; and means, actuatable at the outside surface of said extension elongated member and engaging said extension elongated member and said web portion, for drawing said web portion toward said object to tighten said second web about said object and tighten said extension elongated member to said object; each of said plurality of sections being mountable to one another end-to-end.
Claim 9
Dependent Claim
77 words
A ladder as in claim 4 wherein each said extension elongated member comprises a V-shaped angle metal and said drawing means includes a U-shaped bracket having two vertical legs and a central leg for engaging said web portion at said central leg and actuation means, disposed at the outside surface of said metal, for drawing the vertical legs of said bracket through said metal to pull said central leg and said web portion toward said inside surface.
Claim 10
Dependent Claim
36 words
A ladder as in or claim 4 wherein said first and second tying means each include an auto-type safety belt including a quick release buckle for releasably buckling said first and second webs about said object.
Claim 11
Dependent Claim
17 words
A ladder as in claim 6 further comprising male/female connectors at opposite ends of said elongated members.
Claim 12
Dependent Claim
30 words
A ladder as in claim 5 wherein said two vertical legs are threaded and said actuation means includes a pair of wing nuts adapted to engage said vertical leg threads.
Claim 13
Independent Claim
338 words
A method for scaling a pole, tree or other object fixed on a base, the object to be scaled having a longitudinal axis, utilizing a portable multisection including a plurality of sections including a base section and at least one extension section; said base section including a first elongated member having a first longitudinal axis, at least one step fixedly mounted to said first elongated member transversely to said first longitudinal axis, and first web means, including at least one web engaging said first elongated member, for securing said first elongated member upright at the base of said pole; each said at least one extension secton including a second elongated member having a second longitudinal axis, at least one step fixedly mounted to said elongated member transversely to said second longitudinal axis; second member securing means, including at least one second web slidably engaging said second elongated member, for tying said second elongated member upright to said pole; said second member securing means including means for slidably engaging said at least one second web to said second elongated member and means, interposable between said pole and a segment of said at least one second web, for drawing and holding said segment away from said pole to tighten said web about said pole and tighten said second member to said pole; said method comprising the stages of: (1) positioning said base section on said base upright against said pole; (2) surrounding said object with said first web means at least one web and securing said first elongated member upright at the base of said object; (3) mounting one of said at least one extension segments to said base section end-to-end such that their corresponding elongated member longitudinal axes are aligned; (4) after stage (3), surrounding said pole with said second web means at least one web and securing said second elongated member upright to said object; and (5) drawing and holding said web segment away from said pole to tighten said at least one second web about said object.
Claim 14
Independent Claim
338 words
A method for scaling a pole, tree or other object fixed on a base, the object to be scaled having a longitudinal axis, utilizing a portable multisection including a plurality of sections including a base section and at least one extension section; said base section including a first elongated member having a first longitudinal axis, at least one step fixedly mounted to said first elongated member transversely to said first longitudinal axis, and first web means, including at least one web engaging said first elongated member, for securing said first elongated member upright at the base of said pole; each said at least one extension secton including a second elongated member having a second longitudinal axis, at least one step fixedly mounted to said elongated member transversely to said second longitudinal axis; second member securing means, including at least one second web slidably engaging said second elongated member, for tying said second elongated member upright to said pole; said second member securing means including means for slidably engaging said at least one second web to said second elongated member and means, interposable between said pole and a segment of said at least one second web, for drawing and holding said segment away from said pole to tighten said web about said pole and tighten said second member to said pole; said method comprising the stages of: (1) positioning said base section on said base upright against said pole; (2) surrounding said object with said first web means at least one web and securing said first elongated member upright at the base of said object; (3) mounting one of said at least one extension segments to said base section end-to-end such that their corresponding elongated member longitudinal axes are aligned; (4) after stage (3), surrounding said pole with said second web means at least one web and securing said second elongated member upright to said object; and (5) drawing and holding said web segment away from said pole to tighten said at least one second web about said object.
Claim 15
Dependent Claim
115 words
A method for scaling a pole, tree or other like object as in claim 9 further comprising the stages of: concurrently with said stage of securing said first elongated member, pushing said base section against said object as by leaning against one or more of the base section steps of said ladder; after said stage of securing said first elongated member, exerting a substantial force downward on said base section as by stepping on at least one of said at least one base section steps so that said base section is firmly supported by said base; and stepping onto higher ones of said steps as may be necessary to perform stages (3), (4) and (5).
Claim 16
Dependent Claim
204 words
A portable ladder for scaling a pole, tree or like object comprising: an elongated member having an upper portion, a lower portion and a longitudinal axis; at least one step fixedly mounted to said first elongated member transversely to said longitudinal axis; means, including at least one first web engaging said elongated member at said bottom portion, for securing said elongated member upright at the base of the object to be scaled; means, including at least one second web slidably engaging said elongated member at said upper portion, for securing said elongated member upright to said object; said at least one second web having two free ends; said elongated member securing means including (1) means for slidably engaging said at least one second web to said elongated member at said upper portion, (2) means mounted to said second web free ends, for joining said two free ends of said at least one second web and tightening said second web around said object, and (3) means, interposable between said object and a segment of said at least one second web, for drawing and holding said segment away from said object to tighten said web about said object and tighten said second member to said object.
Claim 17
Dependent Claim
204 words
A portable ladder for scaling a pole, tree or like object comprising: an elongated member having an upper portion, a lower portion and a longitudinal axis; at least one step fixedly mounted to said first elongated member transversely to said longitudinal axis; means, including at least one first web engaging said elongated member at said bottom portion, for securing said elongated member upright at the base of the object to be scaled; means, including at least one second web slidably engaging said elongated member at said upper portion, for securing said elongated member upright to said object; said at least one second web having two free ends; said elongated member securing means including (1) means for slidably engaging said at least one second web to said elongated member at said upper portion, (2) means mounted to said second web free ends, for joining said two free ends of said at least one second web and tightening said second web around said object, and (3) means, interposable between said object and a segment of said at least one second web, for drawing and holding said segment away from said object to tighten said web about said object and tighten said second member to said object.
Claim 18
Dependent Claim
73 words
A ladder as in claim 11 wherein: said at least one second web slidably engages said elongated member in nominally spaced relation therewith, said web segment and said elongated member defining a nominal space therebetween such that when said second web surrounds said object, said web segment is disposed between said object and said elongated member; and said interposable means includes means for engaging said segment to draw said segment into said space.
Claim 19
Dependent Claim
66 words
A ladder as in claim 12 wherein: said elongated member includes an inside surface and includes two edges, said web segment being in confronting relation with said inside surface and engaging said edges at an outer boundary of said nominal space; and said ladder further including actuation means, disposed at said outside surface, for causing said interposable means to draw said segment into said nominal space.
Claim 20
Dependent Claim
194 words
A portable ladder for scaling a pole, tree or similar object comprising: an elongated member having an upper portion, a lower portion and a longitudinal axis; at least one step mounted to said elongated member transversely to said longitudinal axis; first means, including a first web engaging said elongated member at said lower portion, for tying said elongated member to the base of the object to be scaled; said elongated member having at said upper portion an inside surface, an outside surface, and two spaced apart edges generally parallel to said longitudinal axis; second means, including a second web slidably engaging said elongated member at said upper portion along said two edges, for tying said elongated member vertically to the object to be scaled, said inside surface being in confronting relationship with said object such that the portion of said second web located between said two edges is nominally spaced from said elongated member; and means, actuatable at said outside surface and engaging said extension member and said web portion, for drawing said web portion toward said object to tighten said second web about said object and tighten said elongated member to said object.
Claim 21
Dependent Claim
194 words
A portable ladder for scaling a pole, tree or similar object comprising: an elongated member having an upper portion, a lower portion and a longitudinal axis; at least one step mounted to said elongated member transversely to said longitudinal axis; first means, including a first web engaging said elongated member at said lower portion, for tying said elongated member to the base of the object to be scaled; said elongated member having at said upper portion an inside surface, an outside surface, and two spaced apart edges generally parallel to said longitudinal axis; second means, including a second web slidably engaging said elongated member at said upper portion along said two edges, for tying said elongated member vertically to the object to be scaled, said inside surface being in confronting relationship with said object such that the portion of said second web located between said two edges is nominally spaced from said elongated member; and means, actuatable at said outside surface and engaging said extension member and said web portion, for drawing said web portion toward said object to tighten said second web about said object and tighten said elongated member to said object.
Claim 22
Dependent Claim
76 words
A ladder as in claim 14 wherein said extension elongated member comprises a V-shaped angle metal and said drawing means includes a U-shaped bracket having two vertical legs and a central leg for engaging said web portion at said central leg, and actuation means, disposed at the outside surface of said metal, for drawing the vertical legs of said bracket through said metal to pull said central leg and said web portion toward said inside surface.
Claim 23
Dependent Claim
35 words
A ladder as in claim 14 wherein said first and second tying means each include an auto-type safety belt including a quick release buckle for releasably buckling said first and second webs about said object.
Claim 24
Dependent Claim
30 words
A ladder as in claim 15 wherein said two vertical legs are threaded and said actuation means includes a pair of wing nuts adapted to engage said vertical leg threads.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-04-27 | 1984-10-27 | 1985-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-04-27 | 1988-10-27 | 1989-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-04-27 | 1992-10-27 | 1993-04-28 | $7700.00 | Window Closed / Lapsed |