Patent US4583712A successfully refreshed from Google Patents.
US4583712A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Evaporator lift
Assignee: Individual
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Filing: 1984-10-29
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Granted: 1986-04-22
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Expires: 2004-10-29
Abstract
Abstract A method and apparatus for lifting and temporarily supporting an evaporator coil cabinet. The apparatus is place on opposite sides of the cabinet and includes a leg member in telescopic engagement with a threaded shaft. The shaft has a platform on one end thereof which is placed beneath an edge of the cabinet. A hand nut in threaded engagement with the shaft rests atop a shoulder on the leg member. As the hand nut is rotated, the shaft and platform are urged upward, thereby lifting and supporting the cabinet.
Inventors
- 👤 David W. Wilks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 07:13
CPC Classifications
B; B66; B66F; B66F3/00; B66F3/08; B01; B01D; B01D1/00; B01D1/02; B01D1/30; F; F25; F25B; F25B39/00; F25B39/02; Y; Y10; Y10S; Y10S254/00; Y10S254/04
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
129 words
Apparatus for lifting or supporting an object, such as an evaporator coil cabinet, comprising: a leg member; a platform adapted for engagement with an edge of said object; a platform shaft connected on a first end to said platform, said platform being rotatable about said first end of said shaft, said apparatus further comprising means for maintaining said platform in flush engagement with said edge of said object comprising support means axially slidable along said shaft for abutting an underside of said platform and a leveling nut in threaded engagement with said shaft for abutting an underside of said support means, said shaft having a second end adapted for telescopic engagement with said leg member; and means for moving said platform upwards or downwards relative to said leg member.
Claim 2
Dependent Claim
129 words
Apparatus for lifting or supporting an object, such as an evaporator coil cabinet, comprising: a leg member; a platform adapted for engagement with an edge of said object; a platform shaft connected on a first end to said platform, said platform being rotatable about said first end of said shaft, said apparatus further comprising means for maintaining said platform in flush engagement with said edge of said object comprising support means axially slidable along said shaft for abutting an underside of said platform and a leveling nut in threaded engagement with said shaft for abutting an underside of said support means, said shaft having a second end adapted for telescopic engagement with said leg member; and means for moving said platform upwards or downwards relative to said leg member.
Claim 3
Dependent Claim
74 words
Apparatus for lifting or supporting an object, such as an evaporator coil cabinet, as recited in claim 1, wherein said means for moving said platform relative to said leg member comprises a hand nut in threaded engagement with said shaft, said hand nut having a nut shoulder for abutting against a first side of a bearing, said bearing having a second side abutting a leg shoulder on an uppermost end of said leg member.
Claim 4
Dependent Claim
144 words
Apparatus for lifting a housing, comprising: a leg member; a platform adapted for engagement with an edge of said housing; a platform shaft connected on a first end to said platform, said platform being rotatable about said first end of said shaft, said apparatus further comprising means for maintaining said platform in flush engagement with said edge of said housing, said means for maintaining said platform in flush engagement with said edge of said housing comprising a wedge support axially slidable along said shaft, said wedge support having a wedge boss for abutting an underside of said platform, and a leveling nut in threaded engagement with said shaft for abutting an underside of said wedge support, said shaft having a second end adapted for telescopic engagement with said leg member; and means for moving said platform upwards or downwards relative to said leg member.
Claim 5
Dependent Claim
144 words
Apparatus for lifting a housing, comprising: a leg member; a platform adapted for engagement with an edge of said housing; a platform shaft connected on a first end to said platform, said platform being rotatable about said first end of said shaft, said apparatus further comprising means for maintaining said platform in flush engagement with said edge of said housing, said means for maintaining said platform in flush engagement with said edge of said housing comprising a wedge support axially slidable along said shaft, said wedge support having a wedge boss for abutting an underside of said platform, and a leveling nut in threaded engagement with said shaft for abutting an underside of said wedge support, said shaft having a second end adapted for telescopic engagement with said leg member; and means for moving said platform upwards or downwards relative to said leg member.
Claim 6
Dependent Claim
301 words
Apparatus for lifting or supporting a housing, comprising: a first leg member and a second leg member; a first platform adapted for engagement with a first edge of said housing and a second platform adapted for engagement with a second edge of said housing; a first platform shaft connected on a first end to said first platform, said first platform being rotatable about said first end of said first shaft, said apparatus further comprising means for maintaining said first platform in flush engagement with said first edge of said housing comprising a first wedge support axially slidable along said first shaft for abutting an underside of said first platform and a first leveling nut in threaded engagement with said first shaft for abutting an underside of said first wedge support, said first shaft having a second end adapted for telescopic engagement with said first leg member; a second platform shaft connected on a first end to said second platform, said second platform being rotatable about said first end of said second shaft, said apparatus further comprising means for maintaining said second platform in flush engagement with said second edge of said housing comprising a second wedge support axially slidable along said second shaft for abutting an underside of said second platform and a second leveling nut in threaded engagement with said second shaft for abutting an underside of said second wedge support, said second shaft having a second end adapted for telescopic engagement with said second leg member; and first means for moving said first platform upwards or downwards relative to said first leg member and second means for moving said second platform upwards or downwards relative to said second leg member, said first and second platforms lifting or supporting said housing upon upward movement thereof relative to said leg members.
Claim 7
Dependent Claim
301 words
Apparatus for lifting or supporting a housing, comprising: a first leg member and a second leg member; a first platform adapted for engagement with a first edge of said housing and a second platform adapted for engagement with a second edge of said housing; a first platform shaft connected on a first end to said first platform, said first platform being rotatable about said first end of said first shaft, said apparatus further comprising means for maintaining said first platform in flush engagement with said first edge of said housing comprising a first wedge support axially slidable along said first shaft for abutting an underside of said first platform and a first leveling nut in threaded engagement with said first shaft for abutting an underside of said first wedge support, said first shaft having a second end adapted for telescopic engagement with said first leg member; a second platform shaft connected on a first end to said second platform, said second platform being rotatable about said first end of said second shaft, said apparatus further comprising means for maintaining said second platform in flush engagement with said second edge of said housing comprising a second wedge support axially slidable along said second shaft for abutting an underside of said second platform and a second leveling nut in threaded engagement with said second shaft for abutting an underside of said second wedge support, said second shaft having a second end adapted for telescopic engagement with said second leg member; and first means for moving said first platform upwards or downwards relative to said first leg member and second means for moving said second platform upwards or downwards relative to said second leg member, said first and second platforms lifting or supporting said housing upon upward movement thereof relative to said leg members.
Claim 8
Dependent Claim
180 words
Apparatus for lifting or supporting an object, such as an evaporator coil cabinet, comprising: a leg member; a platform adapted for engagement with an edge of said object; a platform shaft connected on a first end to said platform, said platform being rotatable about said first end of said shaft, said apparatus further comprising means for maintaining said platform in flush engagement with said edge of said object comprising support means axially slidable along said shaft, said support means including a wedge bar for abutting an underside of said platform, and a leveling nut in threaded engagement with said shaft for abutting an underside of said support means, said shaft having a second end adapted for telescopic engagement with said leg member; and means for moving said platform upwards or downwards relative to said leg member comprising a hand nut in threaded engagement with said shaft, said hand nut having a nut shoulder for abutting against a first side of a bearing, said bearing having a second side abutting a leg shoulder on an uppermost end of said leg member.
Claim 9
Dependent Claim
180 words
Apparatus for lifting or supporting an object, such as an evaporator coil cabinet, comprising: a leg member; a platform adapted for engagement with an edge of said object; a platform shaft connected on a first end to said platform, said platform being rotatable about said first end of said shaft, said apparatus further comprising means for maintaining said platform in flush engagement with said edge of said object comprising support means axially slidable along said shaft, said support means including a wedge bar for abutting an underside of said platform, and a leveling nut in threaded engagement with said shaft for abutting an underside of said support means, said shaft having a second end adapted for telescopic engagement with said leg member; and means for moving said platform upwards or downwards relative to said leg member comprising a hand nut in threaded engagement with said shaft, said hand nut having a nut shoulder for abutting against a first side of a bearing, said bearing having a second side abutting a leg shoulder on an uppermost end of said leg member.
Claim 10
Dependent Claim
35 words
Apparatus for lifting or supporting an object, as recited in claim 1, wherein said leg member has a lower portion and an upper portion and wherein said lower portion is detachable from said upper portion.
Claim 11
Dependent Claim
25 words
Apparatus for lifting or supporting an object, as recited in claim 2, further comprising means for prohibiting disengagement of said hand nut from said shaft.
Claim 12
Dependent Claim
36 words
Apparatus for lifting or supporting an object, as recited in claim 7, wherein said means for prohibiting disengagement of said hand nut from said shaft comprises a weld spot on said second end of said shaft.
Claim 13
Dependent Claim
68 words
Apparatus for lifting or supporting a housing, as recited in claim 3, wherein said means for moving said platform relative to said leg member comprises a hand nut in threaded engagement with said shaft, said hand nut having a nut shoulder for abutting against a first side of a bearing, said bearing having a second side abutting a leg shoulder on an uppermost end of said leg member.
Claim 14
Dependent Claim
153 words
Apparatus for lifting or supporting a housing, as recited in claim 4, wherein said first means for moving said first platform upwards or downwards relative to said first leg member comprises a first hand nut in threaded engagement with said first shaft, said first hand nut having a first nut shoulder for abutting against a first side of a first bearing, said first bearing having a second side abutting a first leg shoulder on an uppermost end of said first leg member and wherein said second means for moving said second platform upwards or downwards relative to said second leg member comprises a second hand nut in threaded engagement with said second shaft, said second hand nut having a second nut shoulder for abutting against a first side of a second bearing, said second bearing having a second side abutting a second leg shoulder on a uppermost end of said second leg member.
Claim 15
Dependent Claim
46 words
Apparatus for lifting or supporting an object, as recited in claim 1, wherein said support means comprises a support housing having a passage therethrough within which to receive said shaft and an upstanding bar connected to said support housing for abutting an underside of said platform.
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) | 1989-04-21 | 1989-10-21 | 1990-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-04-21 | 1993-10-21 | 1994-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-04-21 | 1997-10-21 | 1998-04-22 | $7700.00 | Window Closed / Lapsed |