US4876745A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Knee pads
Assignee: Individual
•
Filing: 1988-05-12
•
Granted: 1989-10-31
•
Expires: 2008-05-12
Abstract
Abstract A knee pad has a flat bottomed support dimensioned to underlie the kneecap and a substantial adjacent length of the tibia. The support has a cushioned concavity for the knee and a channel for the lower leg which is inclined upwardly away from the plane of the flat bottom and towards the foot. The channel terminates in a fork disposed to straddle the instep of the shoe on that foot. The depth of the concavity is such that at least the greater part of the wearer's weight is borne by the tibia. The knee pad has a cuff of hard surfaced but flexible material by which it is detachably secured to a lower leg and fitted against the calf thereof. Both that portion of the support which is to underlie the knee and the forked end of the channel may have sections which may flex.
Inventors
- 👤 Lee E. Richards
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:09
CPC Classifications
A; A41; A41D; A41D13/00; A41D13/05; A41D13/055; A41D13/0556; A41D13/0568; A41D13/06; A41D13/065; A41D13/015; A41D13/0153
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
144 words
A knee pad attachable to a lower leg, said knee pad including a flat bottomed support of a length, when so attached and the knee bent with the wearer in a kneeling position, such as to underlie the knee cap and an adjacent portion of the tibia, the upper portion of said support having a concavity for the knee cap and provided with a cushioning layer and including a leg-receiving channel provided with a cushioning layer and inclined away from the surface on which the wearer is kneeling and extending beyond the support and towards the foot of said leg, and means connected to the channel and operable to secure the channel to the leg about the calf, a substantial percentage of the weight of the wearer transmitted to the surface through that part of the support underlying said adjacent portion of the tibia.
Claim 2
Dependent Claim
144 words
A knee pad attachable to a lower leg, said knee pad including a flat bottomed support of a length, when so attached and the knee bent with the wearer in a kneeling position, such as to underlie the knee cap and an adjacent portion of the tibia, the upper portion of said support having a concavity for the knee cap and provided with a cushioning layer and including a leg-receiving channel provided with a cushioning layer and inclined away from the surface on which the wearer is kneeling and extending beyond the support and towards the foot of said leg, and means connected to the channel and operable to secure the channel to the leg about the calf, a substantial percentage of the weight of the wearer transmitted to the surface through that part of the support underlying said adjacent portion of the tibia.
Claim 3
Dependent Claim
42 words
The knee pad of claim 1 in which the rear end of the support is upwardly curved and when said curved end is in contact with the surface the percentage of the weight of the wearer that is so borne is increased.
Claim 4
Dependent Claim
34 words
The knee pad of claim 2 in which the length of the support is such that the junction of the upwardly curved end with the flat surface thereof is approximately midway of the leg.
Claim 5
Dependent Claim
39 words
The knee pad of claim 1 in which the free end of at least the cushioning layer of the channel is shaped to engage the instep of the foot and be held thereby to prevent the channel from turning.
Claim 6
Dependent Claim
49 words
The knee pad of claim 1 in which the free end of the channel is in the form of a fork shaped and dimensioned to straddle the instep of the foot and inclined forwardly both to enable the foot to be flexed and to hold the channel from turning.
Claim 7
Dependent Claim
21 words
The knee pad of claim 5 in which the cushioning layer extends beyond the free end and sides of the channel.
Claim 8
Dependent Claim
48 words
The knee pad of claim 1 in which the end of the channel within the support is separated from the knee receiving recess by a transverse shoulder exposed therein and the cushioning layer is of such a thickness in the recess to offset the height of the shoulder.
Claim 9
Dependent Claim
38 words
The knee pad of claim 1 in which the upper portion of the support has a rearward seat inclined rearwardly away from the flat bottom thereof and the forward end of the channel is attached to the seat.
Claim 10
Dependent Claim
30 words
The knee pad of claim 1 in which the securing means are shaped and dimensioned to fit against the calf downwardly from and including the thickest portion of the calf.
Claim 11
Dependent Claim
58 words
The knee pad of claim 1 in which the support includes upper and lower sections interconnected in a manner to enable the support to the flexed with reference to a line transversely intersecting the knee receiving concavity and a flexible layer of a non-slip, non-marring layer is secured to the flat bottom of said upper and lower sections.
Claim 12
Dependent Claim
66 words
The knee pad of claim 1 in which at least the lower end of the cushioning layer of the channel is dimensioned to engage the instep area of the shoe on the wearer's foot and the lower end of the channel includes a series of transverse sections centrally interconnected in a manner to enable them to be flexed in response to the flexing of said foot.
Claim 13
Dependent Claim
28 words
The knee pad of claim 1 in which the protuberance is a separate part of the knee pad and is attached to the channel in a selected location.
Claim 14
Dependent Claim
19 words
The knee pad of claim 12 in which the central part of the cuff is anchored to the protuberance.
Claim 15
Dependent Claim
132 words
A knee pad attachable to a lower leg, said knee pad including a cushioned support dimensioned to accommodate the knee when so attached and the wearer is in a kneeling position, said support including a leg-receiving channel provided with a cushioning layer and inclined towards the foot of said leg and away from the surface on which the wearer is kneeling, and a flexible, hard surfaced cuff connected to the channel and having first and second end portions, the first cuff portion shaped and dimensioned to be wrapped about the lower leg and to fit against substantially the entire downwardly tapering portion of the calf, the second cuff portion shaped and dimensioned to be pulled over the first cuff portion to fit the first cuff portion against the calf and then anchored.
Claim 16
Dependent Claim
132 words
A knee pad attachable to a lower leg, said knee pad including a cushioned support dimensioned to accommodate the knee when so attached and the wearer is in a kneeling position, said support including a leg-receiving channel provided with a cushioning layer and inclined towards the foot of said leg and away from the surface on which the wearer is kneeling, and a flexible, hard surfaced cuff connected to the channel and having first and second end portions, the first cuff portion shaped and dimensioned to be wrapped about the lower leg and to fit against substantially the entire downwardly tapering portion of the calf, the second cuff portion shaped and dimensioned to be pulled over the first cuff portion to fit the first cuff portion against the calf and then anchored.
Claim 17
Dependent Claim
43 words
The knee pad of claim 11 in which the free end of the channel is in the form of a fork shaped and dimensioned to straddle the shoe on the wearer's foot and is outwardly flared to permit the foot to be flexed.
Claim 18
Dependent Claim
35 words
The knee pad of claim 14 in which the cushioning layer extends beyond the free end of the channel and is dimensioned to overlie and straddle the instep of the shoe on the wearer's foot.
Claim 19
Dependent Claim
38 words
The knee pad of claim 14 in which the channel has an external protuberance adjacent the free end thereof, dimensioned to at least partially offset the thickness of the calf and the first cuff portion overlies the protuberance.
Claim 20
Dependent Claim
86 words
The knee pad of claim 14 in which the adjustable cuff includes connecting means having a first part having an end anchored to the exterior of the channel, a toggle joint having a pull strap dimensioned to partially overlie the first section and a second part attached to the second cuff portion adjacent the free end thereof, said second part consisting of a self-closing latch through which, the pull strap is threaded then to be pulled to effect the fitting of the cuff against the leg.
Claim 21
Dependent Claim
31 words
The knee pad of claim 14 in which the free end of the first cuff portion has guides spaced to receive the free end of the second cuff portion between them.
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) | 1992-10-30 | 1993-05-01 | 1993-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-10-30 | 1997-05-01 | 1997-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-10-30 | 2001-05-01 | 2001-10-31 | $7700.00 | Window Closed / Lapsed |